Apparatuses, Systems, and Methods of Insulation Installation

CROSS-REFERENCE

[0001]The present application is a national stage application of International Patent Application No. PCT/US23/64157, filed Mar. 10, 2023, which claims priority to, and the benefit of U.S. Provisional Application No. 63/269,176 filed Mar. 11, 2022, the contents of both are incorporated herein by reference in their entirety.

TECHNICAL FIELD

[0002]The present disclosure relates to insulation installation tools and apparatuses, systems, and methods of insulation installation.

BACKGROUND

[0003]A number of apparatuses, systems, and methods have been proposed for installing insulation. Some proposals involve blowing or flowing loose or particulate insulation into an open wall or ceiling cavity. Such proposals have traditionally used a plastic sheet that is attached to wall framing members to enclose a wall cavity before insulation is installed and which remains in place once insulation installation is complete. Other proposals have sought to use various other barriers in lieu of plastic sheets. Existing proposals suffer from a number of drawbacks, limitations, and shortcomings including those respecting ease of operation, and effective coverage and distribution of insulation, among others. There remains a significant need for the unique apparatuses systems and methods disclosed herein.

DISCLOSURE OF EXAMPLE EMBODIMENTS

[0004]For the purposes of clearly, concisely, and exactly describing illustrative embodiments of the present disclosure, the manner and process of making and using the same, and to enable the practice, making and use of the same, reference will now be made to certain example embodiments, including those illustrated in the figures, and specific language will be used to describe the same. It shall nevertheless be understood that no limitation of the scope of the invention is thereby created and that the invention includes and protects such alterations, modifications, and further applications of the example embodiments as would occur to one skilled in the art.

BRIEF DESCRIPTION OF THE DRAWINGS

[0005]FIG. 1 is a front view of an example insulation installation tool deployed in an example work environment.

[0006]FIG. 2 is an enlarged front view of a portion of FIG. 1.

[0007]FIG. 3 is an enlarged partially sectional front view of another portion of FIG. 1.

[0008]FIG. 4 is an enlarged partially-sectional front view of another portion of FIG. 1.

[0009]FIG. 5 is a partially sectional side view of a portion of FIG. 1.

[0010]FIG. 6 is a front view of the example work environment of FIG. 1 without the example insulation installation tool.

[0011]FIG. 7 is a front view of an example insulation installation tool deployed in another example work environment.

[0012]FIG. 8 is a front view of an example insulation installation tool.

[0013]FIG. 9 is a first side view of the example insulation installation tool of FIG. 8.

[0014]FIG. 10 is a second side view of the example insulation installation tool of FIG. 8.

[0015]FIG. 11 is a perspective, partially sectional view of a portion of the example insulation installation tool of FIG. 8.

[0016]FIG. 12 is a perspective view of a portion of the example insulation installation tool of FIG. 8.

[0017]FIG. 13 is a perspective, partially sectional view of a portion of the example insulation installation tool of FIG. 8.

[0018]FIG. 14 is a perspective, partially sectional view of a portion of the example insulation installation tool of FIG. 8.

[0019]FIG. 15 is a perspective view of a portion of the example insulation installation tool of FIG. 8.

[0020]FIG. 15A is a sectional view of taken along the line A-A of FIG. 14.

[0021]FIG. 16 is a perspective view of a portion of the example insulation installation tool of FIG. 8.

[0022]FIG. 17 is a perspective view of a portion of the example insulation installation tool of FIG. 8.

[0023]FIG. 18 is a perspective view of a portion of an example insulation installation tool.

[0024]FIG. 19 is a perspective view of a portion of an example insulation installation tool.

[0025]FIG. 20 is a side view of the example insulation installation tool of FIG. 19.

[0026]FIG. 21 is a side view of an example insulation installation tool.

[0027]FIG. 22 is a side view of an example insulation installation tool.

[0028]FIG. 23 is a side view of an example insulation installation tool.

[0029]FIG. 24 is a perspective view of a portion of an example insulation installation tool.

[0030]FIG. 25 is a perspective view of a portion of an example insulation installation tool.

DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS

[0031]With reference to FIGS. 1-5, there are illustrated several views of an example tool 100 for installing insulation. As shown in FIG. 1, tool 100 may be deployed in an example work environment which includes a wall framing 10 including a ceiling joist 13, an upper horizontal stud 12, a first vertical stud 14, a second vertical stud 16, and a lower horizontal stud 18, among other joists, studs, and framing members (not depicted). The wall framing 10 is disposed on and supported by an underlying floor surface 19. Upper horizontal stud 12, first vertical stud 14, second vertical stud 16, and lower horizontal stud 18 bound a wall frame chamber 21 which is substantially covered by tool 100 in the view of FIG. 1, but is visible in FIG. 6 which illustrates the environment including wall framing 10 in the absence of tool 100. In the view of FIG. 1, tool 100 and framing 10 are illustrated relative to a Cartesian coordinate system with a vertical axis direction indicated by arrow Z-Z and a horizontal axis direction indicated by arrow X-X.

[0032]Tool 100 includes a frame 101 including a first vertical beam 110a and a second vertical beam 110b which extend vertically along a height of the frame 101. Frame 101 further includes a first horizontal beam 120 and a second horizontal beam 122 which extends horizontally along a width of the frame 101. The first and second vertical beams 110a, 110b and the first and second horizontal beams 120, 122 bound an interior frame region 116.

[0033]Frame 101 is further provided with feet 117a, 117b, wheels 119a, 119b, and jack 121. In the state illustrated in FIG. 1, jack 121 has been actuated to a raised position in which frame 101 is raised relative to floor surface 19 and urged into contact with ceiling joist 13. Jack 121 may also be actuated to a lowered position in which frame 101 is lowered and spaced apart from ceiling joist 13 and wheels 119a, 119b are lowered into contact with floor surface 19 to facilitate horizontal movement and repositioning of tool 100 via lateral rolling on wheels 119a, 119b. In the lowered position, feet 117a, 117b are raised slightly above floor surface 19 relative to wheels 119a, 119b to limit the tilting or tipping of tool 100. Jack 121 may be a foot-actuated jack and may include a hydraulic jack mechanism or various other types of jack or actuator mechanisms as will occur to one of skill in the art with the benefit and insight of the present disclosure.

[0034]In the illustrated example, jack 121 is configured to provide a centrally positioned point of contact between tool 100 and floor surface 19. In some embodiments, may be configured to provide additional or alternative points of contact between tool 100 and floor surface 19. For example, jack 121 may be configured to provide multiple points of contact. In some such forms, jack 121 may include multiple foot-actuated jacks. In some such forms, jack 121 may a single foot-actuated jack with multiple points of contact between tool 100 and floor surface 19.

[0035]In the illustrated example, wheels 119a, 119b are provided as fixed position linear casters which are rotatable to accommodate horizontal motion of the tool 100 in the X-axis direction. In some embodiments, wheels 119a, 119b may be provided as swivel casters, which are rotatable about two axes to accommodate horizontal motion of the tool 100 in the X-axis direction and motion of the tool in the Y-axis direction. When provided as swivel casters, wheels 119a, 119b may be selectably lockable and unlockable to various positions, for example, to accommodate only horizontal motion of the tool 100 in the X-axis direction, accommodate only motion of the tool in the Y-axis direction, and accommodate a combination of horizontal motion of the tool 100 in the X-axis direction and motion of the tool in the Y-axis direction.

[0036]The first vertical beam 110a includes a first lower beam member 114a and a first upper beam member 112a which is extensible and retractable relative to the first lower beam member 114a to vary the height of the first vertical beam 110a. The second vertical beam 110b includes a second lower beam member 114b and a second upper beam member 112b extensible and retractable relative to the second lower beam member 114b to vary the height of the second vertical beam 110b.

[0037]Handles 139a, 139b are coupled with first vertical beam 110a and second vertical beam 110b, respectively, and may be grasped by a user of tool 100 to manipulate and reposition tool 100. In the illustrated example, handles 139a, 139b are coupled with and extend from first lower beam member 114a and second lower beam member 114b, respectively. In some embodiments, handles 139a, 139b may be coupled with other structures of frame 101 and may be provided at different positions relative to frame 101. In some embodiments, handles 139a, 139b may be provided in other forms, such as recesses, grips, knobs, or other handle forms as will occur to one of skill in the art with the benefit and insight of the present disclosure.

[0038]In the embodiment of FIGS. 1-5, first upper beam member 112a is arranged in a telescoping relationship with first lower beam member 114a such that the overall vertical height of first vertical beam 110a is variable by moving first upper beam member 112a in and out of first lower beam member 114a. A handle 115a may be adjusted by an operator to selectively fix the position of first upper beam member 112a relative to first lower beam member 114a or permit movement of first upper beam member 112a relative to first lower beam member 114a.

[0039]Second upper beam member 112b is arranged in a telescoping relationship with second lower beam member 114b such that the overall vertical height of second vertical beam 110b is variable by moving second upper beam member 112b in and out of second lower beam member 114b. A handle 115b may be adjusted by an operator to selectively fix the position of second upper beam member 112b relative to second lower beam member 114b or permit movement of second upper beam member 112b relative to second lower beam member 114b.

[0040]Other embodiments may include different arrangements of upper beam members relative to lower beam members, for example, sliding ladder-type arrangements (e.g., side-by-side, top-to-bottom, or a combination side-by-side and top-to-bottom sliding ladder-type arrangements), partially overlapping arrangements, other types of nested arrangements, or other arrangements as will occur to one of skill in the art with the benefit and insight of the present disclosure. Other embodiments may include fixed-length beam members which may be single-piece fixed-length beam members or multi-piece fixed-length beam members.

[0041]With continuing reference to FIGS. 1-5, a carriage 140 extends horizontally intermediate the first and second vertical beams 110a, 110b and is vertically moveable along at least a portion of the vertical height of the first and second vertical beams 110a, 110b. Carriage 140 includes a receptacle 160 which is configured to receive a nozzle of an insulation blower (not depicted) and defines an aperture providing access to the wall frame chamber 21 underlying the tool 100.

[0042]Carriage 140 includes an upper horizontal carriage beam 143a, a lower horizontal carriage beam 143b, and first and second vertical carriage beams 142a, 142b. Carriage 140 further includes a shuttle 150 in which receptacle 160 is provided. Shuttle 150 is horizontally moveable along at least a portion of a horizontal width of carriage 140.

[0043]A first sheeting 132a extends horizontally in interior frame region 116 intermediate first and second vertical beams 110a, 110b and extends vertically in interior frame region 116 intermediate carriage 140 and first horizontal beam 120. First sheeting 132a is extensible and retractable in response to vertical movement of carriage 140. First sheeting 132a is also extensible and retractable in response to extension and retraction of first upper beam member 112a relative to first lower beam member 114a and second upper beam member 112b relative to second lower beam member 114b.

[0044]A second sheeting 132b extends horizontally in interior frame region 116 intermediate first and second vertical beams 110a, 110b and extends vertically in interior frame region 116 intermediate carriage 140 and second horizontal beam 122. Second sheeting 132b is extensible and retractable in response to vertical movement of carriage 140. Second sheeting 132b is also extensible and retractable in response to extension and retraction of first upper beam member 112a relative to first lower beam member 114a and second upper beam member 112b relative to second lower beam member 114b.

[0045]First sheeting 132a is operatively coupled with a first spool 134a and is extensible and retractable by unwinding and winding about the first spool 134a. In the embodiment of FIGS. 1-5, first spool 134a is disposed within first horizontal beam 120. In other embodiments, first spool 134a may be coupled with first horizontal beam 120 and/or with other structures of frame 101 in other manners. For example, in some embodiments, first spool 134a may be external to and coupled with first horizontal beam 120. In some embodiments, first spool 134a may be disposed within another housing, container, or other structure which is coupled with first horizontal beam 120, coupled with first and second vertical beams 110a, 110b, and/or coupled with other structures of frame 101.

[0046]In some embodiments, first spool 134a may be disposed, in whole or in part, within carriage 140, for example, within upper horizontal carriage beam 143a. In some embodiments, first spool 134a may be external to and coupled with and moveable with carriage 140. In some embodiments, first spool 134a may be disposed within another housing, container, or other structure which is coupled with and moveable with carriage 140. In some embodiments, another type of sheeting uptake mechanism may be utilized in lieu of first spool 134a. Examples of such alternative sheeting uptake mechanisms may include accordion-type tensioners or folding mechanisms, winding or spooling mechanisms, as well as other mechanisms as will occur to one of skill in the art with the benefit and insight of the present disclosure.

[0047]Second sheeting 132b is operatively coupled with a second spool 134b and is extensible and retractable by unwinding and winding about the second spool 134b. In the embodiment of FIGS. 1-5, second spool 134b is disposed within second horizontal beam 122. In other embodiments, second spool 134b may be coupled with second horizontal beam 122 and/or with other structures of frame 101 in other manners such as those described elsewhere herein. For example, in some embodiments, second spool 134b may be external to and coupled with second horizontal beam 122. In some embodiments, second spool 134b may be disposed within another housing, container, or other structure which is coupled with second horizontal beam 122, coupled with first and second vertical beams 110a, 110b, and/or coupled with other structures of frame 101.

[0048]In some embodiments, second spool 134b may be disposed, in whole or in part, within carriage 140, for example, within lower horizontal carriage beam 143b. In some embodiments, second spool 134b may be external to and coupled with and moveable with carriage 140. In some embodiments, second spool 134b may be disposed within another housing, container, or other structure which is coupled with and moveable with carriage 140. It is further contemplated that another type of sheeting uptake mechanism, such as the alternatives mechanisms described above, may be utilized in lieu of second spool 134b.

[0049]As shown in the views of FIGS. 1 and 5, tool 100 may be positioned so that first sheeting 132a and second sheeting 132b contact wall framing 10 to enclose a wall chamber such as wall chamber 21. In the illustrated example, first sheeting 132a contacts at least a portion of upper horizontal stud 12, first vertical stud 14, and second vertical stud 16, and second sheeting 132b contacts at least a portion of lower horizontal stud 18, first vertical stud 14, and second vertical stud 16. Such overlapping positioning substantially closes an open face of wall chamber 21 with an insulation retaining barrier or shield that is permeable to airflow. This arrangement allows insulation to be blown into and retained within wall chamber 21. Jack 121 is configured to provide a range of actuation that facilitates overlapping contact between first sheeting 132a and second sheeting 132b on the one hand, and wall framing 10 on the other hand. Thus, when actuated, jack 121 may position tool 100 in the position illustrated in FIG. 1 to substantially enclose an open face of wall chamber 21 with an insulation retaining barrier or shield that is permeable to airflow.

[0050]A gasket feature to facilitate seal formation with wall framing 10 may be provided on one or both of first sheeting 132a and second sheeting 132b. A gasket feature to facilitate seal formation with framing 10 may additionally or alternatively be provided on one or more of first vertical beam 110a, second vertical beam 110b, first horizontal beam 120, and second horizontal beam 122 so that seal formation between tool 100 and wall framing 10 may be provided even where a wall framing component extends outside the area of first sheeting 132a or second sheeting 132b. In some forms, the horizontal (X-axis direction) width of tool 100 may be selected to enclose a chamber based on standardized stud spacing, for example, 24 inches center-to-center spacing.

[0051]A third sheeting 145a extends horizontally intermediate a first vertical carriage beam 142a and shuttle 150 and extends vertically intermediate upper horizontal carriage beam 143a and a lower horizontal carriage beam 143b. The third sheeting 145a is extensible and retractable in response to horizontal movement of the shuttle 150.

[0052]A fourth sheeting 145b extends horizontally intermediate a second vertical carriage beam 142b and shuttle 150 and extends vertically intermediate upper horizontal carriage beam 143a and a lower horizontal carriage beam 143b. The fourth sheeting 145b is extensible and retractable in response to horizontal movement of the shuttle 150.

[0053]Third sheeting 145a is operatively coupled with a third spool 144a and is extensible and retractable by unwinding and winding about third spool 144a. In the embodiment of FIGS. 1-5, third spool 144a is disposed within first vertical carriage beam 142a. In other embodiments, third spool 144a may be coupled with first vertical carriage beam 142a and/or with other structures of carriage 140 in other manners. For example, in some embodiments, third spool 144a may be external to and coupled with first vertical carriage beam 142a. In some embodiments, third spool 144a may be disposed within another housing, container, or other structure which is coupled with first vertical carriage beam 142a, coupled with upper and lower horizontal carriage beams 143a, 143b, and/or coupled with other structures of carriage 140.

[0054]In some embodiments, third spool 144a may be disposed, in whole or in part, within shuttle 150. In some embodiments, third spool 144a may be external to and coupled with and moveable with shuttle 150. In some embodiments, third spool 144a may be disposed within another housing, container, or other structure which is coupled with and moveable with shuttle 150. It is further contemplated that another type of sheeting uptake mechanism, such as the alternatives mechanisms described above, may be utilized in lieu of third spool 144a.

[0055]Fourth sheeting 145b is operatively coupled with a fourth spool 144b and is extensible and retractable by unwinding and winding about fourth spool 144b. In the embodiment of FIGS. 1-5, fourth spool 144b is disposed within second vertical carriage beam 142b. In other embodiments, fourth spool 144b may be coupled with second vertical carriage beam 142b and/or with other structures of carriage 140 in other manners. For example, in some embodiments, third spool 144a may be external to and coupled with second vertical carriage beam 142b. In some embodiments, third spool 144a may be disposed within another housing, container, or other structure which is coupled with second vertical carriage beam 142b, coupled with upper and lower horizontal carriage beams 143a, 143b, and/or coupled with other structures of carriage 140.

[0056]In some embodiments, fourth spool 144b may be disposed, in whole or in part, within shuttle 150. In some embodiments, fourth spool 144b may be external to and coupled with and moveable with shuttle 150. In some embodiments, fourth spool 144b may be disposed within another housing, container, or other structure which is coupled with and moveable with shuttle 150. It is further contemplated that another type of sheeting uptake mechanism, such as the alternatives mechanisms described above, may be utilized in lieu of fourth spool 144b.

[0057]At least a portion 146a of carriage 140 is disposed in a first groove 111a defined in first vertical beam 110a. Bearings 147a contact one or more surfaces of first groove 111a and accommodated movement relative thereto. At least another portion 146b of carriage 140 is disposed in a second groove 111b defined in second vertical beam 110b. Portion 146b is provided with bearings 147b which contact one or more surfaces of second groove 111b and accommodated movement relative thereto.

[0058]At least a portion of carriage shuttle 150 is disposed in a third groove 113a defined in first horizontal carriage beam 143a and is provided with bearings 157a which contact one or more surfaces of third groove 113a and accommodated movement relative thereto. At least another portion of shuttle 150 is disposed in a fourth groove 113b defined in second horizontal carriage beam 143b and is provided with bearings 157b which a contact one or more surfaces of fourth groove 113b and accommodated movement relative thereto.

[0059]First sheeting 132a, second sheeting 132b, third sheeting 145a, and fourth sheeting 145b may be provided in a number of forms and may comprise a number of materials. Examples of such forms include screens, meshes, perforated materials, apertured materials, webbings, other materials as will occur to one of skill in the art with the benefit and insight of the present disclosure, and combinations of the foregoing. In such forms, first sheeting 132a, second sheeting 132b, third sheeting 145a, and fourth sheeting 145b may comprise various materials including metal or metallic materials, polymers, plastics, fabrics (woven and non-woven), and various other materials as will occur to one of skill in the art with the benefit and insight of the present disclosure.

[0060]One or more of first sheeting 132a, second sheeting 132b, third sheeting 145a, and fourth sheeting 145b may be provided in a form permeable to airflow. In some embodiments, at least one of first sheeting 132a and second sheeting 132b is permeable to airflow. In some embodiments, at least one of first sheeting 132a, second sheeting 132b, third sheeting 145a, and fourth sheeting 145b is permeable to airflow. In some embodiments, at least one of (a) first sheeting 132a and second sheeting 132b is permeable to airflow, and (b) third sheeting 145a and fourth sheeting 145b is permeable to airflow. In some embodiments, first sheeting 132a, second sheeting 132b, third sheeting 145a, and fourth sheeting 145b are permeable to airflow.

[0061]FIG. 7 illustrates an example tool 100′ including a frame 101′. Tool 100′ includes a number of features which are the same as or similar to the features of tool 100 but also varies in certain respects including those aspects described below and illustrated in FIG. 7. Except as provided by the following description, tool 100′ may include the same, or substantially the same features as those described above in connection with tool 100 as well as the additions, alternatives, extensions, modifications, and variations thereof.

[0062]Frame 101′ includes a first vertical beam 110a′ and a second vertical beam 110b′ which extend vertically along a height of the frame 101′. First vertical beam 110a′ includes a first lower beam member 114a′ and a first upper beam member 112a′ which is extensible and retractable relative to the first lower beam member 114a′ to vary the height of the first vertical beam 110a′. The second vertical beam 110b′ includes a second lower beam member 114b′ and a second upper beam member 112b′ extensible and retractable relative to the second lower beam member 114b′ to vary the height of the second vertical beam 110b′.

[0063]First upper beam member 112a′ is arranged in a nested sliding relationship with first lower beam member 114a′ such that the overall vertical height of first vertical beam 110a′ is variable by moving first upper beam member 112a′ relative to first lower beam member 114a′. A handle 115a′ may be adjusted by an operator to selectively fix the position of first upper beam member 112a′ relative to first lower beam member 114a′ or permit movement of first upper beam member 112a′ relative to first lower beam member 114a′.

[0064]Second upper beam member 112b′ is arranged in a nested sliding relationship with second lower beam member 114b′ such that the overall vertical height of second vertical beam 110b′ is variable by moving second upper beam member 112b′ relative to second lower beam member 114b′. A handle 115b′ may be adjusted by an operator to selectively fix the position of second upper beam member 112b′ relative to second lower beam member 114b′ or permit movement of second upper beam member 112b′ relative to second lower beam member 114b′.

[0065]As shown in FIG. 7, tool 100′ may be deployed in an example work environment which includes a wall framing 10′ including a ceiling joist 13′, an upper horizontal stud 12′, a first vertical stud 14′, a second vertical stud 16′, and a lower horizontal stud 18′. The wall framing 10′ is disposed on and supported by an underlying floor surface 19′. Upper horizontal stud 12′, first vertical stud 14′, second vertical stud 16′, and lower horizontal stud 18′ define a wall frame chamber 21′ which is partially covered by tool 100 in the view of FIG. 7. In the view of FIG. 7, tool 100′ and framing 10′ are illustrated relative to a Cartesian coordinate system with a vertical axis direction indicated by arrow Z-Z and a horizontal axis direction indicated by arrow X-X.

[0066]A carriage 140′ extends horizontally intermediate first lower beam member 114a′ and second lower beam member 114b′ and is vertically moveable along at least a portion of the vertical height of first lower beam member 114a′ and second lower beam member 114b′ between first horizontal beam member 120′ and second horizontal beam member 122′. Carriage 140′ includes a receptacle 160′ which is configured to receive a nozzle of an insulation blower (not depicted) and defines an aperture providing access to the wall frame chamber 21 underlying the tool 100′. Carriage 140′ further includes a shuttle 150′ in which receptacle 160′ is provided. Shuttle 150′ is horizontally moveable along at least a portion of a horizontal width of carriage 140′. Carriage 140′ may also include substantially similar features as those described in connection with carriage 140′.

[0067]A first sheeting 132a′ extends horizontally in interior frame region 116′ intermediate first lower beam member 114a′ and second lower beam member 114b′, and extends vertically in interior frame region 116′ intermediate carriage 140′ and first horizontal beam 120′. First sheeting 132a′ is extensible and retractable in response to vertical movement of carriage 140′.

[0068]First sheeting 132a′ is operatively coupled with a first spool 134a′ and is extensible and retractable by unwinding and winding about first spool 134a′. First spool 134a′ may be disposed within first horizontal beam 120′ or in other locations and arrangements such as those described in connection with tool 100.

[0069]A second sheeting 132b′ extends horizontally in interior frame region 116 intermediate first lower beam member 114a′ and second lower beam member 114b′, and extends vertically in interior frame region 116′ intermediate carriage 140′ and second horizontal beam 122′. Second sheeting 132b′ is extensible and retractable in response to vertical movement of carriage 140′.

[0070]Second sheeting 132b′ is operatively coupled with a second spool 134b′ and is extensible and retractable by unwinding and winding about second spool 134b′. Second spool 134b′ may be disposed within second horizontal beam 122′ or in other locations and arrangements such as those described in connection with tool 100.

[0071]A third sheeting 232a′ extends horizontally in interior frame region 216′ intermediate first upper beam member 112a′ and second upper beam member 112b′, and extends vertically in interior frame region 116′ intermediate carriage 140′ and second upper horizontal beam 222′. Third sheeting 232a′ is extensible and retractable in response to movement of first upper beam member 112a′ and second upper beam member 112b′ relative to first lower beam member 114a′ and second lower beam member 114b′.

[0072]Third Sheeting 232a′ is operatively coupled with a third spool 234a′ and is extensible and retractable by unwinding and winding about third spool 234a′. Third spool 234a′ may be disposed within second upper horizontal beam 222′ or in other locations and arrangements analogous to or similar to as those described in connection with tool 100.

[0073]First upper beam member 112a′ and second upper beam member 112b′ are moveable relative to first lower beam member 114a′ and second lower beam member 114b′ to vary the vertical height of tool 100′. As illustrated in FIG. 7, the height of the tool 100′ is in an intermediate state between a minimum height and a maximum height.

[0074]From the position illustrated in FIG. 7, first upper beam member 112a′ and second upper beam member 112b′ may be lowered relative to first lower beam member 114a′ and second lower beam member 114b′ to decrease the overall height of tool 100 and third sheeting 232a′ will retract and wind about spool 234a′ in response to such motion. First upper beam member 112a′ and second upper beam member 112b′ may be lowered to provide a minimum height of tool 100′ corresponding to a minimum expected height of wall framing 10′, for example, eight feet.

[0075]From the position illustrated in FIG. 7, first upper beam member 112a′ and second upper beam member 112b′ may be raised relative to first lower beam member 114a′ and second lower beam member 114b′ to increase the overall height of tool 100 and third sheeting 232a′ will extend and unwind wind about spool 234a′ in response to such motion. First upper beam member 112a′ and second upper beam member 112b′ may be extended to provide a maximum height of tool 100′ corresponding to a maximum expected height of wall framing 10′, for example, ten feet.

[0076]Upper shielding 240′ extends vertically between first upper horizontal beam 220′ and second upper horizontal beam 222′ and includes a receptacle 260′ which is configured to receive a nozzle of an insulation blower (not depicted) and defines an aperture providing access to the wall frame chamber underlying the tool 100′. In some embodiments, upper shielding 240′ may be configured as a removable component available for stand-alone operation.

[0077]Handles 139a′, 139b′ are coupled with first vertical beam 110a′ and second vertical beam 110b′, respectively, and may be grasped by a user of tool 100′ to manipulate and reposition tool 100′. It shall be appreciated that handles 139a′, 139b′ may be coupled with other structures of frame 10′1 and may be provided at different positions relative to frame 101′ such as those described in connection with handles 139a, 139b, and frame 101.

[0078]With reference to FIGS. 8-17, there are illustrated several views of an example tool 200 for installing insulation. Tool 200 may be deployed in an example work environment which may be substantially the same as or similar to the work environment described in connection with FIG. 1 which includes a wall framing including a ceiling joist, an upper horizontal stud, a first vertical stud, a second vertical stud, and a lower horizontal stud, among other joists, studs, and framing members which are disposed on and supported by an underlying floor surface. In FIG. 8, only underlying floor surface 19 is illustrated, it being appreciated that the aforementioned and other wall framing elements may also be present in the environment during operation of tool 200.

[0079]FIG. 8 depicts a front view of tool 200 which is illustrated relative to a Cartesian coordinate system with a vertical axis direction indicated by arrow Z-Z and a horizontal axis direction indicated by arrow X-X. FIG. 9 depicts a side view of tool 200 from the perspective of the right side of the view of FIG. 8. FIG. 10 depicts a side view of tool 200 from the perspective of the left side of the view of FIG. 8. In FIGS. 9 and 10, tool 200 is illustrated relative to the Cartesian coordinate system of FIG. 8 with the vertical axis direction indicated by arrow Z-Z and a second horizontal axis direction indicated by arrow Y-Y.

[0080]Tool 200 includes a frame 201 including an upper frame assembly 201a and a lower frame assembly 201b which are operatively coupled with one another and adjustable relative to one another in the vertical axis direction. It shall be appreciated other embodiments of tool 200 may include other types of upper frame assemblies and lower frame assemblies which are operatively coupled with one another and adjustable relative to one another in the vertical axis direction that the illustrated example. In some embodiment, an upper frame assembly and a lower frame assembly may be operatively coupled with one another and adjustable relative to one another in telescoping arrangement. In some embodiment, an upper frame assembly and a lower frame assembly may be operatively coupled with one another and adjustable relative to one another in a nested C-channel arrangement or a telescoping C-channel arrangement. In some embodiment, an upper frame assembly and a lower frame assembly may be operatively coupled with one another and adjustable relative to one another in a nested L-channel arrangement or a telescoping L-channel arrangement. In some embodiment, an upper frame assembly and a lower frame assembly may be operatively coupled with one another and adjustable relative to one another in other types of nested or other types of telescoping arrangements. In some embodiment, an upper frame assembly and a lower frame assembly may be operatively coupled with one another and adjustable relative to one another in a side-by-side sliding arrangement. Such embodiments may include

[0081]FIG. 8 depicts an example configuration and state of adjustment of tool 200 and frame 201 in which upper frame assembly 201a and a lower frame assembly 201b are operatively coupled with one another. In the configuration and state illustrated in FIG. 8, lower frame assembly 201b is supported by support assembly 219a and support assembly 219b which, in turn, contact and are supported by underlying floor surface 19. From the illustrated configuration and state, upper frame assembly 201a may be adjusted in the vertical axis direction by a user of tool 200 to a plurality positions which are either raised or lowered relative to that illustrated in FIG. 8.

[0082]FIGS. 9 and 10 depict an example configuration and state of adjustment of tool 200 and frame 201 in which upper frame assembly 201a and a lower frame assembly 201b are separated from one another. FIGS. 9 and 10 further illustrates how lower frame assembly 201b and upper frame assembly 201a can be coupled with one another via the phantom depiction of lower frame assembly 201b in association with upper frame assembly 201a.

[0083]Frame 201 includes a first horizontal beam 220 of upper frame assembly 201a which extends horizontally in the X-axis direction along a width of frame 201 and a second horizontal beam 222 of lower frame assembly 201b which extends horizontally in the X-axis direction along a width of frame 201. Collectively, first vertical beam 210a, second vertical beam 210b, first horizontal beam 220, and a second horizontal beam 222 bound an interior frame region 216. Frame 201 further includes a third horizontal beam 224 of upper frame assembly 201a which extends horizontally in the X-axis direction along a width of frame 201.

[0084]Tool 200 includes adjustment assemblies 280a, 280b which respectively include brackets 281a, 281b, handles 239a, 239b, and lock mechanisms 282a, 282b. Adjustment assemblies 280a, 280b are operatively coupled with first vertical beam 210a and second vertical beam 210b, respectively, and include respective handles 239a, 239b may be grasped by a user of tool 100 to manipulate reconfigure and reposition tool 200 as described elsewhere herein. In other embodiments, handles 239a, 239b may be coupled with other structures of frame 201 and may be provided at different positions relative to frame 201. In some embodiments, handles 239a, 239b may be provided in other forms, such as recesses, grips, knobs, or other handle forms as will occur to one of skill in the art with the benefit and insight of the present disclosure.

[0085]As illustrated in FIGS. 9 and 10, for example, frame 201 includes a first vertical beam 210a and a second vertical beam 210b which extend vertically along a height of the frame 201. In the illustrated example, first vertical beam 210a and second vertical bean 210b are configured and provided as compound beams including multiple constituent components. It shall be appreciated that other embodiments may include different arrangements and types of vertical beams, for example, sliding ladder-type arrangements (e.g., side-by-side, top-to-bottom, or a combination side-by-side and top-to-bottom sliding ladder-type arrangements), partially overlapping arrangements, other types of nested arrangements, or other arrangements as will occur to one of skill in the art with the benefit and insight of the present disclosure. Other embodiments may include fixed-length beam members which may be single-piece fixed-length beam members or multi-piece fixed-length beam members.

[0086]As illustrated in FIG. 9, first vertical beam 210a includes beam member 271a and beam member 272a of upper frame assembly 201a as well as beam member 273a, beam member 274a, beam member 275a, and beam member 276a of lower frame assembly 201b. Beam member 271a and beam member 272a may be operatively coupled with one another to provide a unitary, fixed-length portion of first vertical beam 210a. Beam member 273a, beam member 274a, beam member 275a, and beam member 276a may be operatively coupled with one another to provide a unitary, fixed-length portion of first vertical beam 210a.

[0087]First vertical beam 210a and its constituent beam members 271a, 272a, 273a, 274a, 275a, 276a may be provided in a number of forms. In some embodiments, constituent beam members 271a, 272a, 273a, 274a, 275a, 276a may be provided as the same type or a substantially similar type as one another. In some embodiments, constituent beam members 271a, 272a, 273a, 274a, 275a, 276a may be provided as various or varied types. FIG. 11 illustrates one example type of beam members 271a, 272a, 273a which are provided in the form of T-slot aluminum extrusions each including a plurality of T-slots 373 which are configured to receive connectors such as connector 374 and connector 375. Connector 374 is an example of a fixed connector which is configured and operable to rigidly couple bracket 281a of adjustment assembly 280a with beam member 272a of upper frame assembly 201a. Connector 375 is an example of a slidable connector which is configured and operable to slidably couple bracket 281a of adjustment assembly 280a with beam member 271a of lower frame assembly 201b.

[0088]The respective connections established by connector 374 and connector 375 accommodate and participate in vertical movement of upper frame assembly 201a relative to lower frame assembly 201b, for example, when raising or lowering force is applied to adjustment assembly 280a by a user of tool 200 to either raise or lower of upper frame assembly 201a relative to lower frame assembly 201b effective to extend or retract the overall vertical height of tool 200. Such adjustment may be performed, for example, to provide a macro-adjustment of the overall vertical height of tool 200 relative to a wall framing. For example, a user may adjust the overall vertical height of tool 200 to be greater than the distance between underlying floor surface 19 and a ceiling joist or an upper horizontal stud of a wall framing (e.g., structures substantially the same as or similar to ceiling joist 13 or upper horizontal stud 12 illustrated and described in connection with FIG. 1).

[0089]After performing macro-adjustment such as the above-described adjustment, a user may apply downward force to frame 201, for example, by stepping on second horizontal beam 222 of lower frame assembly 201b or on a shelf-type protrusion operatively coupled therewith, such as shelf 223 which is illustrated in phantom for clarity. Such application of force may be effective to compress support assembly 219a effective to reduce the overall vertical height of tool 200 to be greater than the distance between underlying floor surface 19 and the ceiling joist or the upper horizontal stud of the wall framing. A user may thereafter adjust the positioning of tool 200 to locate tool 200 beneath the ceiling joist or the upper horizontal stud of the wall framing. Once so positioned, a user may release or reduce the downward force applied to frame 201 and tool 200 may expand due to the relaxation of support assembly 219a and tool 200 may apply force effective to wedge or retain tool 200 in a position suitable for installation of insulation.

[0090]As illustrated in FIG. 10, second vertical beam 210b includes beam member 271b and beam member 272b of upper frame assembly 201a as well as beam member 273b, beam member 274b, beam member 275b, and beam member 276b of lower frame assembly 201b. Beam member 271b and beam member 272b may be operatively coupled with one another to provide a unitary, fixed-length portion of second vertical beam 210b. Beam member 273b, beam member 274b, beam member 275b, and beam member 276a may be operatively coupled with one another to provide a unitary, fixed-length portion of second vertical beam 210b.

[0091]Second vertical beam 210b and its constituent beam members 271b, 272b, 273b, 274b, 275b, 276b may be provided in a number of forms. In some embodiments, constituent beam members 271b, 272b, 273b, 274b, 275b, 276b may be provided as the same type or a substantially similar type as one another. In some embodiments, constituent beam members 271b, 272b, 273b, 274b, 275b, 276b may be provided as various or varied types. In some embodiments, one or more of beam members 271b, 272b, 273b, 274b, 275b, 276b may be provided in the form of T-slot aluminum extrusions such as the form of a beam members 271a, 272a, 273a illustrated and described in connection with FIG. 11.

[0092]Connectors substantially the same as or similar to connector 374 and connector 375 illustrated and described in connection with FIG. 11 may be utilized to similarly rigidly couple bracket 281b of adjustment assembly 280b with beam member 272b of upper frame assembly 201a and slidably couple bracket 281b of adjustment assembly 280b with beam member 271b of lower frame assembly 201b. The respective connections established by connector 374 and connector 375 accommodate and participate in vertical movement of upper frame assembly 201a relative to lower frame assembly 201b, for example, via the macro-adjustment, compression, and release operations described above.

[0093]Lock mechanisms 282a, 282b of adjustment assemblies 280a, 280b may be manipulated by a user in connection with the adjustment operations described above. For example, a locking end of lock mechanisms 282a, 282b may be configured to selectably engage and disengage with beam members 273a, 273b, respective, for example by extending into and retracting from receiving holes or apertures provided in 273a, 273b. A plurality of such receiving holes or apertures may be provided in 273a, 273b at different vertical positions to accommodate and facilitate locking of the upper frame assembly 201a relative to lower frame assembly 201b.

[0094]In the illustrated example, lock mechanisms 282a, 282b are configured and provided as a thumb button-type locking mechanisms configured to selectably lock and unlock in response to application of force to user-accessible ends of lock mechanisms 282a, 282b, for example, by application of force by a user's thumbs when gripping handles 239a, 239b. A number of thumb button-type locking mechanisms are contemplated including, for example, mechanisms in which locking ends of lock mechanisms 282a, 282b are biased into engagement with beam members 273a, 273b and the application or relaxation of force to user accessible ends is effective to disengage lock mechanisms 282a, 282b from beam members 273a, 273b permitting the aforementioned adjustment. Such mechanisms may include various linkages, levers, cams, or other force-bearing or transfer components configured to transfer or translate application of force in a direction toward tool 200 into retraction of locking ends of lock mechanisms 282a, 282b. In some embodiments, the biasing force directions of lock mechanisms 282a, 282b may be reversed such that lock mechanisms 282a, 282b are biased out of engagement with beam members 273a, 273b. In some embodiments, regardless of the biasing direction, the application of force to user accessible ends of lock mechanisms 282a, 282b may be effective to toggle lock mechanisms 282a, 282b from engaged and disengaged states from beam members 273a, 273b, for example, in a push-to-engage, next-push-to-release set of operations. In some embodiments, lock mechanisms 282a, 282b may be provided in the form of trigger-type mechanisms (e.g., finger trigger-type mechanisms) or pull-type mechanisms (e.g., finger pull-type mechanisms).

[0095]An upper carriage 240a extends horizontally intermediate vertical beams 210a, 210b and is vertically moveable along at least a portion of the vertical height of vertical beams 210a, 210b. As illustrated in FIGS. 15 and 15A, for example, upper carriage 240a includes a receptacle 260 which is configured to receive a nozzle of an insulation blower (not depicted) and defines an aperture providing access to the wall frame chamber underlying the tool 200. Receptacle 260 may be provide with a brushed gasket 261 including a plurality bristles projecting inward from a periphery of receptacle 260 toward a central aperture. Brushed gasket 261 may accommodate sealable coupling with an insulation installation hose or nozzle via which insulation may be blow into a wall framing area underlying tool 200 while the bristles of brushed gasket 261 mitigate or prevent insulation from escaping to the opposite side of tool 200.

[0096]Upper carriage 240a includes an upper horizontal carriage beam 243a, a lower horizontal carriage beam 143b, and first and second vertical carriage beams 242a, 242b. Carriage 240 further includes a sheeting 249a in which receptacle 260 is provided. In the illustrated example, sheeting 249a includes a central panel 251 and plurality of side panels 250 which are horizontally slidable or otherwise moveable along at least a portion of a horizontal width of carriage 240 in respective tracks 253. In other embodiments, sheeting 249a may be of other types such as those described elsewhere herein. In such embodiments, upper carriage 240a may include additional or alternative components such as spools, bearings and other components illustrated and described herein. It shall be appreciated that central panel 251 is an example of a shuttle mechanism moveable horizontally across the width of upper carriage 240a.

[0097]A lower carriage 240b extends horizontally intermediate vertical beams 210a, 210b and is vertically moveable along at least a second portion of the vertical height of vertical beams 210a, 210b. It shall be appreciated that lower carriage 240b may include substantially the same or similar features described in connection with upper carriage 240a.

[0098]Sheeting 232a extends horizontally in interior frame region 216 intermediate vertical beams 210a, 210b and extends vertically in interior frame region 216 intermediate upper carriage 240a and horizontal beam 220. Sheeting 232a is extensible and retractable in response to vertical movement of upper carriage 240a. Sheeting 232a is illustrated in a form the same as or substantially similar to sheeting 132a described herein above. In other forms, sheeting 232a may be provided in other forms, such as the alternative forms described in connection with sheeting 132a, the forms described in connection with sheeting 249a, or other sheeting forms.

[0099]Sheeting 232b extends horizontally in interior frame region 216 intermediate vertical beams 210a, 210b and extends vertically in interior frame region 216 intermediate upper carriage 240a and horizontal beam 124. Sheeting 232b is extensible and retractable in response to vertical movement of upper carriage 240a. Sheeting 232b is illustrated in a form the same as or substantially similar to sheeting 132b described herein above. In other forms, sheeting 232b may be provided in other forms, such as the alternative forms described in connection with sheeting 132b, the forms described in connection with sheeting 249a, or other sheeting forms.

[0100]Sheeting 232a is operatively coupled with a spool 234a and is extensible and retractable by unwinding and winding about spool 234a. In the illustrated embodiment, spool 234a is disposed within horizontal beam 220. In other embodiments, spool 234a may be coupled with horizontal beam 220 and/or with other structures of frame 201 in other manners. For example, in some embodiments, spool 234a may be external to and coupled with horizontal beam 220. In some embodiments, spool 234a may be disposed within another housing, container, or other structure which is coupled with horizontal beam 220, coupled with vertical beams 210a, 210b, and/or coupled with other structures of frame 201.

[0101]In some embodiments, spool 234a may be disposed, in whole or in part, within upper carriage 240a, for example, within horizontal beam 240. In some embodiments, spool 234a may be external to and coupled with and moveable with upper carriage 240a. In some embodiments, spool 234a may be disposed within another housing, container, or other structure which is coupled with and moveable with upper carriage 240a. In some embodiments, another type of sheeting uptake mechanism may be utilized in lieu of spool 234a. Examples of such alternative sheeting uptake mechanisms may include accordion-type tensioners or folding mechanisms, winding or spooling mechanisms, as well as other mechanisms as will occur to one of skill in the art with the benefit and insight of the present disclosure.

[0102]Sheeting 232b is operatively coupled with a spool 234b and is extensible and retractable by unwinding and winding about spool 234b. In the illustrated embodiment, spool 234b is disposed within horizontal beam 224. In other embodiments, spool 234b may be coupled with horizontal beam 224 and/or with other structures of frame 201 in other manners such as those described elsewhere herein. For example, in some embodiments, spool 234b may be external to and coupled with horizontal beam 124. In some embodiments, spool 234b may be disposed within another housing, container, or other structure which is coupled with horizontal beam 224, coupled with vertical beams 210a, 210b, and/or coupled with other structures of frame 201.

[0103]In some embodiments, spool 234b may be disposed, in whole or in part, within upper carriage 240, for example, within lower horizontal carriage beam 243b. In some embodiments, spool 234b may be external to and coupled with and moveable with upper carriage 240a. In some embodiments, spool 234b may be disposed within another housing, container, or other structure which is coupled with and moveable with upper carriage 240a. It is further contemplated that another type of sheeting uptake mechanism, such as the alternatives mechanisms described above, may be utilized in lieu of spool 234b.

[0104]Sheeting 232c extends horizontally in interior frame region 216 intermediate vertical beams 210a, 210b and extends vertically in interior frame region 216 intermediate lower carriage 240b and horizontal beam 224. Sheeting 232c is extensible and retractable in response to vertical movement of upper carriage 240b and/or motion of upper frame assembly 201a relative to lower frame assembly 201b. Sheeting 232c is illustrated in a form the same as or substantially similar to sheetings 132a, 132b described herein above. In other forms, sheeting 232c may be provided in other forms, such as the alternative forms described in connection with sheetings 132a, 132b, the forms described in connection with sheeting 249a, or other sheeting forms.

[0105]Sheeting 232d extends horizontally in interior frame region 216 intermediate vertical beams 210a, 210b and extends vertically in interior frame region 216 intermediate lower carriage 240b and horizontal beam 224. Sheeting 232d is extensible and retractable in response to vertical movement of lower carriage 240b. Sheeting 232d is illustrated in a form the same as or substantially similar to sheetings 132a, 132b described herein above. In other forms, sheeting 232d may be provided in other forms, such as the alternative forms described in connection with sheetings 132a, 132b, the forms described in connection with sheeting 249a, or other sheeting forms.

[0106]Sheeting 232c is operatively coupled with a spool 234c and is extensible and retractable by unwinding and winding about spool 234c. In the illustrated embodiment, spool 234c is disposed within horizontal beam 224. In other embodiments, spool 234c may be coupled with horizontal beam 224 and/or with other structures of frame 201 in other manners. For example, in some embodiments, spool 234c may be external to and coupled with horizontal beam 224. In some embodiments, spool 234c may be disposed within another housing, container, or other structure which is coupled with horizontal beam 224, coupled with vertical beams 210a, 210b, and/or coupled with other structures of frame 201.

[0107]In some embodiments, spool 234c may be disposed, in whole or in part, within lower carriage 240b, for example, within a horizontal beam thereof. In some embodiments, spool 234a may be external to and coupled with and moveable with lower carriage 240b. In some embodiments, spool 234c may be disposed within another housing, container, or other structure which is coupled with and moveable with lower carriage 240b. In some embodiments, another type of sheeting uptake mechanism may be utilized in lieu of spool 234c. Examples of such alternative sheeting uptake mechanisms may include accordion-type tensioners or folding mechanisms, winding or spooling mechanisms, as well as other mechanisms as will occur to one of skill in the art with the benefit and insight of the present disclosure.

[0108]Sheeting 232d is operatively coupled with a spool 234d and is extensible and retractable by unwinding and winding about spool 234d. In the illustrated embodiment, spool 2342 is disposed within horizontal beam 222. In other embodiments, spool 234d may be coupled with horizontal beam 222 and/or with other structures of frame 201 in other manners such as those described elsewhere herein. For example, in some embodiments, spool 234d may be external to and coupled with horizontal beam 222. In some embodiments, spool 234d may be disposed within another housing, container, or other structure which is coupled with horizontal beam 222, coupled with vertical beams 210a, 210b, and/or coupled with other structures of frame 201.

[0109]In some embodiments, spool 234d may be disposed, in whole or in part, within lower carriage 240b, for example, within a horizontal beam thereof. In some embodiments, spool 234d may be external to and coupled with and moveable with lower carriage 240b. In some embodiments, spool 234d may be disposed within another housing, container, or other structure which is coupled with and moveable with lower carriage 240b. It is further contemplated that another type of sheeting uptake mechanism, such as the alternatives mechanisms described above, may be utilized in lieu of spool 234d.

[0110]Sheeting 232a, sheeting 232b, sheeting 232c, and sheeting 232d may be received by vertical beams 210a, 210b. For example, as illustrated in FIG. 13, a portion of sheeting 232a is slidably received in and retained by a groove 309 formed in a corner portion of beam member 271b which is provided in a hollow corner, T-slot extruded aluminum form. When sheeting 232a is extended and retracted it may slide within groove 309. As illustrated in FIG. 14, ingress and egress of sheeting 232a to and from groove 309 may be facilitated by guide 207 of horizontal beam member 220. It shall be appreciated that an opposite horizontal direction end of sheeting 232a may be similarly received in a groove provided in beam member 271b and that a corresponding guide for that horizontal end may also be provided in the corresponding side of horizontal beam member 220. It shall be appreciated sheeting 232b, sheeting 232c, and sheeting 232d may be similarly coupled with corresponding members of vertical beams 210a, 210b. For example, opposite horizontal ends of sheeting 232b may be slidably received in grooves formed in beam members 271a, 271b, and sheeting 232c and sheeting 232d may be slidably received in grooves formed in beam members 275a, 275b.

[0111]Tool 200 may be positioned so that sheeting 232a, sheeting 232b, sheeting 232c, and sheeting 232d contact a wall framing to enclose a wall chamber such as wall chamber 21 described above in connection with FIG. 1. In some forms, the horizontal (X-axis direction) width of tool 200 may be selected to enclose a chamber based on standardized stud spacing, for example, 24 inches center-to-center spacing. A gasket feature to facilitate seal formation with a wall framing may be provided on one or both of frame 201 and sheeting 232a, 232b, 232c, 232d.

[0112]As noted above, tool 200 includes a support assembly 219a and a support assembly 219b which are fixedly coupled with frame 201. In the illustrated example, support assembly 219a and a support assembly 219b are fixedly coupled with the frame 201 at respective locations spaced apart locations along the width of the frame 201 and proximate a lower vertical end of frame 201 such that support assembly 219a and a support assembly 219b extend downward from the lower vertical end of frame 201. Support assembly 219a and support assembly 219b are configured and provided in an example suspension-caster or spring-caster form and include a caster and a suspension operatively coupled with the caster and configured to accommodate vertical movement of the frame 201 relative to the caster and an underlying floor surface.

[0113]As illustrated in FIG. 16, support assembly 219b includes caster 377b and suspension 381b. Caster 377b includes a wheel 378b rotatably coupled with a fork 379b and configured to roll over underling floor surface 19. Fork 379b is swivelably coupled with a shaft 380b which extends upward to suspension 381b and is operatively coupled with a by a coupling member 383b which is provided in the form of a pin.

[0114]Suspension 381b includes a bracket 382b which is fixedly coupled with beam member 276b of frame 201. A compressible member, configured and provided in the form of a spring 385b in the illustrated example, extends vertically within bracket 382a about a tubular shaft 384b. Tubular shaft 384b is operatively coupled with and configured and positioned to receive shaft 380b and to accommodate motion of shaft 380b in the vertical direction. Shaft 380b extends upward is operatively coupled with spring 385b by a coupling member, configured and provided in the form of a pin 383b in the illustrated example, which is fixedly coupled with shaft 380b, received by a slot provided in shaft 384b and configured to travel in the vertical direction along with shaft 380b to apply force to and compress spring 385b.

[0115]As illustrated in FIG. 17, support assembly 219a includes caster 377a and suspension 381a. Caster 377a includes a wheel 378a rotatably coupled with a fork 379a and configured to roll over underling floor surface 19. Fork 379a is swivelably coupled with a shaft 380a which extends upward to suspension 381a and is operatively coupled with a by a coupling member 383a which is provided in the form of a pin.

[0116]Suspension 381a includes a bracket 382a which is fixedly coupled with beam member 276a of frame 201. A compressible member, configured and provided in the form of a spring 385a in the illustrated example, extends vertically within bracket 382a about a tubular shaft 384a. Tubular shaft 384a is operatively coupled with and configured and positioned to receive shaft 380a and to accommodate motion of shaft 380a in the vertical direction. Shaft 380a extends upward is operatively coupled with spring 385a by a coupling member, configured and provided in the form of a pin 383a in the illustrated example, which is fixedly coupled with shaft 380a, received by a slot provided in shaft 384a and configured to travel in the vertical direction along with shaft 380a to apply force to and compress spring 385a.

[0117]As also described above, a user may apply downward force to frame 201, for example, by stepping on horizontal beam 222 of lower frame assembly 201b or on a shelf-type protrusion operatively coupled therewith, such as shelf 223. Such application of force may be effective to compress springs or other compressible members support assemblies 219a, 219b effective to reduce the overall vertical height of tool 200 to be greater than the distance between underlying floor surface 19 and the ceiling joist or the upper horizontal stud of the wall framing. FIGS. 9 and 10 illustrate an example degree of compression wherein a lower extremity of beam member 224 may be varied between an upper position indicated by arrows D1 and a lower position indicated by arrows D2 via compression of springs 285a, 285b. In some preferred forms the distance indicated by arrow D2 may be 2 inches or less, 1.5 inches or less, or 1 inch or less such that there is little to no gap between the lower extremity of horizontal beam 222 and a lower wall framing member such as a lower horizontal stud. Such positioning may aid in the retention and sealing-in of insulation introduced to the wall framing via tool 200.

[0118]It shall be appreciated that the example embodiments described herein include a number of examples of insulation installation tools including a first adjustment mechanism configured and operable to vary the vertical height or position of the tool, and a second adjustment mechanism configured and operable to vary the vertical height or position of the tool. In some embodiments, a first adjustment mechanism may be configured and operable to perform a primary adjustment of vertical height or position of the tool of the tool, and a secondary adjustment mechanism may be configured and operable to perform a secondary adjustment of vertical height or position of the tool of the tool. In some such embodiments, the primary adjustment may accommodate or provide a greater total or possible range of adjustment than the secondary adjustment. In some such embodiments, the primary adjustment may provide a range of adjustment generally corresponding to a plurality of typically encountered work environments (e.g., adjustment between approximately 8 feet and approximately 10 feet) and may include intermediate adjustment positions between a maximum and a minimum to accommodate intermediate workspace needs. In some such embodiments, the secondary adjustment may provide expansion and/or contraction effective to apply force effective to wedge or retain the tool in a position suitable for installation of insulation (e.g., a travel of 1-4 inches from a given adjustment feet). In some embodiments, a first adjustment mechanism may be positioned and configured to be operable by a user using a single hand. In some embodiments, a first adjustment mechanism may be positioned and configured to be operable by a user using a two hands. In some embodiments, a second adjustment mechanism may be positioned and configured to be operable by a user using a single hand. In some embodiments, a second adjustment mechanism may be positioned and configured to be operable by a user using a foot hand. The illustrated embodiments provide multiple examples of various first adjustment mechanisms and second adjustment mechanisms.

[0119]In the embodiment of FIGS. 1-6 and the embodiment of FIG. 7, handles 115a, 115b may be first adjusted to allow sliding an upper frame portion relative to a lower frame portion and second adjusted to retain the upper frame portion in a fixed position relative to a lower frame portion. In these embodiments, jack 121 may provide expansion and/or contraction effective to apply force effective to wedge or retain the tool in a position suitable for installation of insulation.

[0120]In the embodiment of FIGS. 8-17, for example, the adjustment assemblies 280a, 280b may be first adjusted to allow sliding an upper frame portion relative to a lower frame portion and second adjusted to retain the upper frame portion in a fixed position relative to a lower frame portion. In these embodiments, support assemblies 219a, 219b may provide expansion and/or contraction effective to apply force effective to wedge or retain the tool in a position suitable for installation of insulation.

[0121]A number of other embodiments, including one or both of a first adjustment mechanism configured and operable to vary the vertical height or position of the tool, and a second adjustment mechanism configured and operable to vary the vertical height or position of the tool are contemplated.

[0122]With reference to FIG. 18, there is illustrated an example tool 400 for installing insulation which may be deployed in an example work environment which may be substantially the same as or similar to the work environment described in connection with FIG. 1. Tool 400 may include a number of features which are the same as or similar to those described in connection with the embodiments of FIGS. 1-17. In the illustrated example, tool 400 includes an end extension linkage 410 adjustable by a user of tool 400 to extend and retract upper feet or end members 402, 403 effective to apply force effective to wedge or retain tool 400 in a position suitable for installation of insulation.

[0123]With reference to FIGS. 19 and 20, there is illustrated an example tool 500 for installing insulation which may be deployed in an example work environment which may be substantially the same as or similar to the work environment described in connection with FIG. 1. Tool 500 may include a number of features which are the same as or similar to those described in connection with the embodiments of FIGS. 1-17. In the illustrated example, tool 500 includes an end extension linkage 510 adjustable by a user of tool 500 to extend and retract lower feet or end members 502, 503 effective to apply force effective to wedge or retain tool 500 in a position suitable for installation of insulation.

[0124]With reference to FIG. 21, there is illustrated an example tool 600 for installing insulation which may be deployed in an example work environment which may be substantially the same as or similar to the work environment described in connection with FIG. 1. Tool 600 may include a number of features which are the same as or similar to those described in connection with the embodiments of FIGS. 1-17. In the illustrated example, tool 600 includes one or more expander mechanisms 610 which can be manipulated by a user move and upper frame portion relative to a lower frame portion effective to apply force effective to wedge or retain tool 600 in a position suitable for installation of insulation. It shall be appreciated that expander mechanisms such as the one or more expander mechanisms 610 may include one or more pistons, pneumatic elements (e.g., pneumatic piston arrangements), hydraulic elements (e.g., hydraulic piston arrangements), cam mechanisms, lost or added motion linkages, ratchets, gears, or other mechanisms configured to provide the aforementioned functionality as will occur to one of skill in the art with the benefit and insight of the present disclosure.

[0125]With reference to FIG. 22, there is illustrated an example tool 700 for installing insulation which may be deployed in an example work environment which may be substantially the same as or similar to the work environment described in connection with FIG. 1. Tool 700 may include a number of features which are the same as or similar to those described in connection with the embodiments of FIGS. 1-17. In the illustrated example, tool 700 includes one or more piston-cylinder-type members 710 which can be manipulated by a user to selectably contact and expand effective to move and upper frame portion relative to a lower frame portion effective to apply force effective to wedge or retain tool 700 in a position suitable for installation of insulation. It shall be appreciated that the one or more piston-cylinder-type members 710 may include springs, elastomeric members, pneumatic elements, hydraulic elements, or combinations of the foregoing and/or other mechanisms configured to provide the aforementioned functionality as will occur to one of skill in the art with the benefit and insight of the present disclosure.

[0126]With reference to FIG. 23, there is illustrated an example tool 800 for installing insulation which may be deployed in an example work environment which may be substantially the same as or similar to the work environment described in connection with FIG. 1. Tool 800 may include a number of features which are the same as or similar to those described in connection with the embodiments of FIGS. 1-17. In the illustrated example, tool 800 includes one or more springs 810 which can be selectably compressed and expanded by a user effective to move and upper frame portion relative to a lower frame portion effective to apply force effective to wedge or retain tool 800 in a position suitable for installation of insulation. It shall be appreciated that the one or more springs 800 may include coil leaf springs, pneumatic springs, elastomeric springs or combinations of the foregoing and/or other mechanisms configured to provide the aforementioned functionality as will occur to one of skill in the art with the benefit and insight of the present disclosure.

[0127]With reference to FIG. 24, there is illustrated an example tool 900 for installing insulation which may be deployed in an example work environment which may be substantially the same as or similar to the work environment described in connection with FIG. 1. Tool 900 may include a number of features which are the same as or similar to those described in connection with the embodiments of FIGS. 1-17. In the illustrated example, tool 900 includes an intra-frame jack mechanism 910 of a scissor-jack type which can be selectably expanded and contracted by a user effective to move and upper frame portion relative to a lower frame portion effective to apply force effective to wedge or retain tool 900 in a position suitable for installation of insulation. It shall be appreciated that the intra-frame jack mechanism 910 may be provided in a number of forms including hydraulic jacks, bottle jacks, ratchet-type jacks or combinations of the foregoing and/or other jack mechanisms configured to provide the aforementioned functionality as will occur to one of skill in the art with the benefit and insight of the present disclosure.

[0128]With reference to FIG. 25, there is illustrated an example tool 1000 for installing insulation which may be deployed in an example work environment which may be substantially the same as or similar to the work environment described in connection with FIG. 1. Tool 1000 may include a number of features which are the same as or similar to those described in connection with the embodiments of FIGS. 1-17. In the illustrated example, tool 1000 includes an intra-frame jack mechanism 1010 of a reverse-scissor-jack type which can be selectably expanded and contracted by a user effective to move and upper frame portion relative to a lower frame portion effective to apply force effective to wedge or retain tool 1000 in a position suitable for installation of insulation. It shall be appreciated that the intra-frame jack mechanism 1010 may be provided in a number of forms including those described in connection with tool 900.

[0129]As illustrated by this detailed description, the present disclosure contemplated multiple embodiments which include but are not limited to the following examples.

[0130]A first example embodiment is a tool for installing insulation, the tool comprising: a frame including first and second vertical beams extending along a height of the frame, and first and second horizontal beams extending along a width of the frame, the first and second vertical beams and the first and second horizontal beams bounding an interior frame region; a carriage extending intermediate the first and second vertical beams, the carriage being vertically moveable along at least a portion of a vertical height of the first and second vertical beams, the carriage including a receptacle configured to receive an insulation blower nozzle; a first sheeting extending horizontally in the interior frame region intermediate the first vertical beam and second vertical beam and extending vertically in the interior frame region from the carriage toward the first horizontal beam, the first sheeting being extensible and retractable in response to vertical movement of the carriage; and a second sheeting extending horizontally in the interior frame region intermediate the first vertical beam and second vertical beam and extending vertically in the interior frame region from the carriage and toward the second horizontal beam, the second sheeting being extensible and retractable in response to vertical movement of the carriage.

[0131]A second example embodiment includes the features of the first example embodiment, wherein the first sheeting extends from the carriage to a first spool operatively coupled with the first horizontal beam, and the second sheeting extends from the carriage to a second spool operatively coupled with a third horizontal beam extending along a width of the frame and positioned vertically intermediate the first horizontal beam and the second horizontal beam.

[0132]A third example embodiment includes the features of the second example embodiment, wherein, the first sheeting and the second sheeting are extensible and retractable in response to movement of the carriage in a vertical direction relative to at least one of the first horizontal beam and the second horizontal beam.

[0133]A fourth example embodiment includes the features of the second example embodiment, wherein at least one of: (a) the first spool is disposed within the first horizontal beam, and (b) the second spool is disposed within the third horizontal beam.

[0134]A fifth example embodiment includes the features of the second example embodiment, wherein at least one of: (a) the first sheeting is extensible and retractable by unwinding and winding about the first spool, and (b) the second sheeting is extensible and retractable by unwinding and winding about the second spool.

[0135]A sixth example embodiment includes the features of the second example embodiment, wherein the first horizontal beam and the third horizontal beam are components of an upper frame assembly, the second horizontal beam is a component of a lower frame assembly, and the upper frame assembly is operatively coupled with and vertically moveable relative to the lower frame assembly.

[0136]A seventh example embodiment includes the features of the sixth example embodiment, and comprises an adjustment assembly fixedly coupled with the upper frame assembly and adjustably coupled with and selectably fixable with the lower frame assembly.

[0137]An eighth example embodiment includes the features of the seventh example embodiment, wherein the adjustment assembly comprises a bracket fixedly coupled with the upper frame assembly, a grip fixedly coupled with the bracket, a receptacle configured to slidably receive a portion of the lower frame assembly, and a lock configured to selectably fixedly engage the upper frame assembly.

[0138]A ninth example embodiment includes the eighth of the first example embodiment, wherein the grip comprises a handle and the lock comprises a locking mechanism adjacent the handle and extensible and retractable relative to the bracket to selectably engage and disengage the lower frame assembly.

[0139]A tenth example embodiment includes the features of the first example embodiment, wherein the carriage includes a first bearing at least partially disposed in a first groove defined in the first vertical beam, and a second bearing at least partially disposed in a second groove defined in the second vertical beam.

[0140]An eleventh example embodiment includes the features of the tenth example embodiment, wherein the carriage includes a shuttle extending vertically intermediate a first horizontal carriage beam and a second horizontal carriage beam and including the receptacle, and a third sheeting extending horizontally intermediate a first vertical carriage beam and the shuttle and extending vertically intermediate a first horizontal carriage beam and a second horizontal carriage beam, the third sheeting being extensible and retractable in response to horizontal movement of the shuttle.

[0141]A twelfth example embodiment includes the features of the eleventh example embodiment, wherein the third sheeting comprises a plurality of sheeting panels slidably disposed in a plurality of tracks and extensible and retractable along the plurality of tracks in response to horizontal motion of the shuttle.

[0142]A thirteenth example embodiment includes the features of the eleventh example embodiment, wherein the carriage includes a shuttle including the receptacle, the shuttle being horizontally moveable along at least a portion of a horizontal width of the carriage.

[0143]A fourteenth example embodiment includes the features of the second example embodiment, and comprises a second carriage extending intermediate the first and second vertical beams, the second carriage being vertically moveable along at least a second portion of a vertical height of the first and second vertical beams, the second carriage including a second receptacle configured to receive an insulation blower nozzle; a third sheeting extending horizontally in the interior frame region intermediate the first vertical beam and second vertical beam and extending vertically in the interior frame region from the carriage toward the third horizontal beam, the third sheeting being extensible and retractable in response to vertical movement of the second carriage; and a fourth sheeting extending horizontally in the interior frame region intermediate the first vertical beam and second vertical beam and extending vertically in the interior frame region from the carriage and toward the second horizontal beam, the second sheeting being extensible and retractable in response to vertical movement of the second carriage.

[0144]A fifteenth example embodiment includes the features of the fourteenth example embodiment, wherein the third sheeting extends from the second carriage to a third spool operatively coupled with the third horizontal beam, and the fourth sheeting extends from the carriage to a fourth spool operatively coupled with the second horizontal beam.

[0145]A sixteenth example embodiment includes the features of the fifteenth example embodiment, wherein, the third sheeting and the fourth sheeting are extensible and retractable in response to movement of the carriage in a vertical direction relative to at least one of the second horizontal beam and the third horizontal beam.

[0146]A seventeenth example embodiment includes the features of the fifteenth example embodiment, wherein at least one of: (a) the third spool is disposed within the third horizontal beam, (b) the fourth spool is disposed within the second horizontal beams, (c) the third sheeting is extensible and retractable by unwinding and winding about the third spool, and (d) the fourth sheeting is extensible and retractable by unwinding and winding about the fourth spool.

[0147]An eighteenth example embodiment includes the features of the first example embodiment, and comprises a support assembly fixedly coupled with the frame and including a caster configured to roll over an underlying floor surface and a suspension operatively coupled with the caster and configured to accommodate vertical movement of the frame relative to the caster.

[0148]A nineteenth example embodiment includes the features of the eighteenth example embodiment, wherein the suspension includes a spring configured to compress in response to downward force applied to the frame.

[0149]A twentieth example embodiment includes the features of the nineteenth example embodiment, wherein compression of the spring is effective accommodate motion of the caster such that a lower extremity of the caster is one of 2 inches or less, 1.5 inches or less, and 1 inch or less from the lower extremity of the second horizontal member in the vertical direction.

[0150]A twenty-first example embodiment includes the features of the first example embodiment, and comprises an adjustment mechanism fixedly coupled with an upper frame assembly and adjustably coupled with a lower frame assembly, wherein the first horizontal beam and the third horizontal beam are components of an upper frame assembly, the second horizontal beam is a component of a lower frame assembly.

[0151]A twenty-second example embodiment includes the features of the twenty-first example embodiment, wherein the adjustment mechanism includes a locking mechanism configured and the upper frame assembly is operatively coupled with and vertically moveable relative to the lower frame assembly.

[0152]A twenty-third example embodiment includes the features of the first example embodiment, wherein the carriage includes a shuttle including an aperture and sheeting extending from the shuttle to opposite sides of the carriage.

[0153]A twenty-fourth example embodiment includes the features of the twenty-third example embodiment, wherein the shuttle comprises a central panel, the sheeting comprises a plurality of side panels, and the central panel and the plurality of side panels are slidably disposed in tracks of the carriage.

[0154]A twenty-fifth example embodiment includes the features of the twenty-third example embodiment, wherein a brush gasket is provided in the aperture.

[0155]A twenty-sixth example embodiment includes the features of the first example embodiment, wherein the first and second vertical beams comprise compound vertical beams.

[0156]A twenty-seventh example embodiment includes the features of the twenty-sixth example embodiment, wherein the first and second vertical beams include respective first beam members of an upper frame assembly, and respective second beam members of a lower frame assembly.

[0157]A twenty-eighth example embodiment includes the features of the twenty-seventh example embodiment, wherein one of the upper frame assembly and the lower frame assembly is slidably received in the other of the upper frame assembly and the lower frame assembly.

[0158]A twenty-ninth example embodiment includes the features of the first example embodiment, wherein the first vertical beam includes a first extruded T-slot beam member.

[0159]A thirtieth example embodiment includes the features of the twenty-ninth example embodiment, wherein at least one of the first sheeting and the second sheeting is slidably received in a retaining groove formed in the first extruded T-slot beam member.

[0160]A thirty-first example embodiment is a tool for installing insulation, the tool comprising: a frame including first and second vertical beams extending vertically along a height of the frame, and first and second horizontal beams extending horizontally along a width of the frame, the first and second vertical beams and the first and second horizontal beams bounding an interior frame region; a carriage extending intermediate the first and second vertical beams, the carriage being vertically moveable along at least a portion of a vertical height of the first and second vertical beams, the carriage including a receptacle configured to receive an insulation blower nozzle; and a first sheeting extending horizontally in the interior frame region intermediate the first vertical beam and second vertical beam and extending vertically in the interior frame region intermediate the carriage and the first horizontal beam, the first sheeting being extensible and retractable in response to vertical movement of the carriage.

[0161]A thirty-second example embodiment includes the features of the thirty-first example embodiment, wherein the first vertical beam includes a first lower beam member and a first upper beam member extensible and retractable relative to the first lower beam member to vary the height of the first vertical beam, and the second vertical beam includes a second lower beam member and a second upper beam member extensible and retractable relative to the second lower beam member to vary the height of the second vertical beam.

[0162]A thirty-third example embodiment includes the features of the thirty-second example embodiment, wherein, the first sheeting is extensible and retractable in response to extension and retraction of the first upper beam member retractable relative to the first lower beam member and the second upper beam member retractable relative to the second lower beam member.

[0163]A thirty-fourth example embodiment includes the features of the thirty-first example embodiment, wherein at least one of the first sheeting and the second sheeting is permeable to airflow.

[0164]A thirty-fifth example embodiment includes the features of the thirty-first example embodiment, wherein the first sheeting and the second sheeting are permeable to airflow.

[0165]A thirty-sixth example embodiment includes the features of the thirty-first example embodiment, wherein the first sheeting is operatively coupled with a first spool and is extensible and retractable by unwinding and winding about the first spool.

[0166]A thirty-seventh example embodiment includes the features of the thirty-sixth example embodiment, wherein the first spool is coupled with the first horizontal beam.

[0167]A thirty-eighth example embodiment includes the features of the thirty-seventh example embodiment, wherein the first spool is disposed within the first horizontal beam.

[0168]A thirty-ninth example embodiment includes the features of the thirty-first example embodiment, wherein the second sheeting is operatively coupled with a second spool and is extensible and retractable by unwinding and winding about the second spool.

[0169]A fortieth example embodiment includes the features of the thirty-ninth example embodiment, wherein the second spool is coupled with the second horizontal beam.

[0170]A forty-first example embodiment includes the features of the fortieth example embodiment, wherein the second spool is disposed within the second horizontal beam.

[0171]A forty-second example embodiment includes the features of the thirty-first example embodiment, wherein the carriage includes a first bearing at least partially disposed in a first groove defined in the first vertical beam, and a second bearing at least partially disposed in a second groove defined in the second vertical beam.

[0172]A forty-third example embodiment includes the features of the thirty-first example embodiment, wherein the carriage includes a shuttle including the receptacle, the shuttle being horizontally moveable along at least a portion of a horizontal width of the carriage.

[0173]A forty-fourth example embodiment includes the features of the forty-third example embodiment, wherein the carriage includes: a third sheeting extending horizontally intermediate a first vertical carriage beam and the shuttle and extending vertically intermediate a first horizontal carriage beam and a second horizontal carriage beam, the third sheeting being extensible and retractable in response to horizontal movement of the shuttle, and a fourth sheeting extending horizontally intermediate a second vertical carriage beam and the shuttle and extending vertically intermediate the first horizontal carriage beam and the second horizontal carriage beam, the fourth sheeting being extensible and retractable in response to horizontal movement of the shuttle.

[0174]A forty-fifth example embodiment includes the features of the forty-fourth example embodiment, wherein at least one of the first sheeting, the second sheeting, the third sheeting, and the fourth sheeting is permeable to airflow.

[0175]A forty-sixth example embodiment includes the features of the forty-fourth example embodiment, wherein at least one of (a) the first sheeting and the second sheeting is permeable to airflow, and (b) the third sheeting and the fourth sheeting is permeable to airflow.

[0176]A forty-seventh example embodiment includes the features of the forty-fourth example embodiment, wherein the first sheeting, the second sheeting, the third sheeting, and the fourth sheeting are permeable to airflow.

[0177]A forty-eighth example embodiment includes the features of the thirty-first example embodiment, wherein at least one of the first sheeting and the second sheeting is permeable to airflow.

[0178]A forty-ninth example embodiment includes the features of the thirty-first example embodiment, wherein the first sheeting and the second sheeting are permeable to airflow.

[0179]An fiftieth example embodiment includes the features of the thirty-first example embodiment and comprises a second sheeting extending horizontally in the interior frame region intermediate the first vertical beam and second vertical beam and extending vertically in the interior frame region intermediate the carriage and the second horizontal beam, the second sheeting being extensible and retractable in response to vertical movement of the carriage.

[0180]While illustrative embodiments of the disclosure have been illustrated and described in detail in the drawings and foregoing description, the same is to be considered as illustrative and not restrictive in character, it being understood that only certain example embodiments have been shown and described and that all changes and modifications that come within the spirit of the claimed inventions are desired to be protected. It shall be understood that the term substantially as used herein in connection with a structure or function confirms that the structure or function encompasses and includes variation(s) in degree, magnitude, scope, shape, position, operation or other physical or functional parameters that do not impair the structural or functional purpose of the structure or function at hand including, for example, margins of error, uncertainty or variation understood by a person of skill in the art with respect to the structure or function at hand. It shall be understood that while the use of words such as preferable, preferably, preferred or more preferred utilized in the description above indicates that the feature so described may be more desirable, it nonetheless may not be necessary and embodiments lacking the same may be contemplated as within the scope of the invention, the scope being defined by the claims that follow. In reading the claims, it is intended that when words such as “a,” “an,” “at least one,” or “at least one portion” are used there is no intention to limit the claim to only one item unless specifically stated to the contrary in the claim. When the language “at least a portion” and/or “a portion” is used the item can include a portion and/or the entire item unless specifically stated to the contrary.