BLOW-IN LOOSE FILL INSULATION CONDITIONING APPARATUSES, PROCESSES, AND SYSTEMS

CROSS-REFERENCE

[0001]The present application claims priority to and the benefit of U.S. application No. 63/714,581 filed Oct. 31, 2024, U.S. application No. 63/733,585 filed Dec. 13, 2024, U.S. application No. 63/797,207 filed Apr. 30, 2025, and U.S. application No. 63/808,583 filed May 19, 2025, and the same are hereby incorporated by reference.

TECHNICAL FIELD

[0002]The present application relates to blow-in loose fill insulation conditioning and related apparatuses, systems, and processes.

BACKGROUND

[0003]A number of proposals have been made for installation of blow-in loose fill insulation. Existing proposals suffer from a number of drawbacks, disadvantages, and shortcomings including those respecting insulating capability (for example, R-value) of installed blow-in loose fill insulation, density of installed loose fill insulation, ease of installation, and operator control over installation, among others. Some existing proposals over-condition loose fill insulation, for example, by excessively cutting, shredding, or otherwise disrupting the structural integrity of blow in insulation. Other proposals may under-condition loose fill insulation and may insufficiently attenuate, break up, loft, loosen, and decrease density of loose fill insulation. Some proposals may inconsistently condition loose fill insulation and may both under-condition and over-condition loose fill insulation. There remains a significant need for the unique apparatuses, systems, and processes disclosed herein.

DISCLOSURE OF EXAMPLE EMBODIMENTS

[0004]For the purposes of clearly, concisely, and exactly describing example 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 as set forth in the claims following this disclosure includes and protects such alterations, modifications, and further applications of the example embodiments as would occur to one skilled in the art with the benefit of the present disclosure.

SUMMARY OF THE DISCLOSURE

[0005]Some embodiments comprise a unique blow-in loose fill insulation apparatuses. Some embodiments comprise a unique blow-in loose fill insulation systems. Some embodiments comprise a unique blow-in loose fill insulation processes. Further embodiments, forms, objects, features, advantages, aspects, and benefits shall become apparent from the following description and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

[0006]FIG. 1 is a partially schematic diagram depicting certain aspects of an example system for installation of blow-in loose fill insulation.

[0007]FIG. 2 is a perspective view depicting certain aspects of an example embodiment of an insulation conditioning device of the system of FIG. 1.

[0008]FIG. 3 is a perspective view depicting certain aspects of certain portions of the insulation conditioning device of FIG. 2.

[0009]FIG. 4 is a side sectional view depicting certain aspects of certain portions of the insulation conditioning device of FIG. 2.

[0010]FIG. 5 is a side sectional view depicting certain aspects of certain portions of the insulation conditioning device of FIG. 2.

[0011]FIG. 6 is an enlarged view of a portion of FIG. 5.

[0012]FIG. 7 is an enlarged view of a portion of FIG. 5.

[0013]FIGS. 8A and 8B are perspective views of certain portions of the insulation conditioning device of FIG. 2.

[0014]FIGS. 9A and 9B are perspective views of certain portions of the insulation conditioning device of FIG. 2.

[0015]FIGS. 10A and 10B are perspective sectional views of certain portions of the insulation conditioning device of FIG. 2.

[0016]FIGS. 11A and 11B are perspective sectional views of certain portions of the insulation conditioning device of FIG. 2.

[0017]FIG. 12 is a perspective view depicting certain aspects of an example tool useful in connection with certain embodiments of the example, insulation conditioning device of FIG. 2.

[0018]FIG. 13 is a partially schematic side sectional view depicting certain aspects of a terminal nozzle useful in connection with insulation conditioning device of FIG. 2.

[0019]FIG. 14A and FIG. 14B are partially transparent side views depicting certain aspects of an example system for installation of blow-in loose fill insulation.

[0020]FIG. 15A and FIG. 15B are perspective views depicting certain aspects of the example system of FIG. 14A and FIG. 14B including a coupling.

[0021]FIG. 16 is a side view depicting certain aspects of another example coupling which may be utilized in the system of FIG. 14A and FIG. 14B.

[0022]FIG. 17A and FIG. 17B are a perspective view and a sectional perspective view, respectively, of another example coupling which may be utilized in the system of FIG. 14A and FIG. 14B.

[0023]FIG. 18 is an exploded perspective view depicting certain aspects of another example coupling which may be utilized in the system of FIG. 14A and FIG. 14B.

[0024]FIG. 19 is a side sectional view illustrating certain aspects of an example process of manufacturing an example insulation conditioning device.

[0025]FIG. 20A is a partially schematic side view illustrating certain aspects of an example manufacturing tool for an example insulation conditioning device in a first point in a manufacturing process.

[0026]FIG. 20B is a partially schematic end view illustrating certain aspects of the example manufacturing tool of FIG. 20A at a second point in a manufacturing process.

[0027]FIG. 20C is a partially schematic end view illustrating certain aspects of the example manufacturing tool of FIG. 20A at a third point in a manufacturing process.

[0028]FIG. 21 is a perspective view illustrating certain aspects of another example process of manufacturing an example insulation conditioning device.

[0029]FIG. 22 is a perspective view illustrating certain aspects of another example process of manufacturing an example insulation conditioning device.

[0030]FIG. 23A and FIG. 23B are a perspective view and a perspective sectional view illustrating certain aspects of another example process of manufacturing an example insulation conditioning device.

[0031]FIG. 24A and FIG. 24B are a perspective view and a side sectional view illustrating certain aspects of another example process of manufacturing an example insulation conditioning device.

[0032]FIG. 25 is a perspective view illustrating certain aspects of another aspect of an example insulation conditioning device.

[0033]26A and FIG. 26B are a perspective view and a perspective sectional view illustrating certain aspects of an example process of manufacturing an example insulation conditioning device.

[0034]FIG. 27A, FIG. 27B, and FIG. 27C are side views illustrating certain aspects of an example process of manufacturing an example insulation conditioning device.

[0035]FIG. 28 is a side view depicting certain aspects of another example insulation conditioning device of the system of FIG. 1.

[0036]FIG. 29 is a side view depicting certain aspects of the example insulation conditioning device of FIG. 7.

[0037]FIG. 30 is an axial sectional view depicting certain aspects of the example insulation conditioning device of FIG. 7.

[0038]FIG. 31 is another axial sectional view depicting certain aspects of the example insulation conditioning device of FIG. 7.

[0039]FIG. 32 is an axial sectional view depicting certain aspects of an additional example embodiment of an insulation conditioning device of the system of FIG. 1.

DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS

[0040]With reference to FIG. 1, there is illustrated an example system 10 configured and operable to perform installation of blow-in loose fill insulation. System 10 includes an insulation blowing machine 20 which may be any of a number of suitable machines configured to receive loose fill insulation and output a blow-in insulation stream comprising loose fill insulation entrained in an airflow. In the illustrated example, insulation blowing machine 20 comprises a hopper section 22 into which loose fill insulation material may be loaded, for example, in the form of a compacted bale. Insulation blowing machine 20 further comprises an agitator 24 section which receives loose fill insulation loaded into the hopper 22, and agitates, churns, or otherwise processes the received loose fill insulation to break up and loosen the received loose fill insulation. Insulation blowing machine 20 further comprises a blower section 26 configured and operable to generate an airflow into which loose fill insulation from the agitator 24 is introduced and entrained to provide a blow-in insulation stream. Blower section 26 is also configured and operable to provide pressure to push the blow-in insulation stream comprising loose fill insulation entrained in an airflow through downstream components of system 10. One or more airlocks may be provided intermediate hopper section 22 and blower section 26 and may be configured to allow passage of loose fill insulation from the hopper to the blower while restricting the passage of air from the blower to the hopper. Such airlocks may be provided intermediate or integrated into hopper section 22, agitator 24 section, and/or blower section 26.

[0041]System 10 comprises one or more flexible hose sections 28 and an insulation conditioning device 30 which are operatively coupled with insulation blowing machine 20. The one or more flexible hose sections 28 may be provided in various forms including, for example, as sections of spiral hose comprising a threadlike or screwlike interior and/or exterior surface. In some embodiments, the one or more flexible hose sections 28 may be configured and provided as sections of Mark 2 insulation blowing hose commercially available from FLEXAUST INC of Warsaw, Indiana. Various embodiments may comprise various hose diameters, for example, 2.5 inches, 3 inches, 4 inches, or other diameters.

[0042]The one or more flexible hose sections 28 may be provided in various lengths suitable for the needs of various jobsites and may be stored, extracted from or retracted into a reel or other storage device. In the illustrated example, a first one of the one or more flexible hose sections 28 is attached and operatively coupled with insulating blowing machine 20. Insulation conditioning device 30 is attached to and operatively coupled with one of the one or more flexible hose sections 28 by a coupling 29. Insulation conditioning device 30 is configured and operable and to output blow-in insulation and direct the blow-in insulation toward an installation site which may comprise, for example, an attic, wall cavity, floor cavity, or other installation site as will occur to one of skill in the art with then benefit and insight of the present disclosure.

[0043]Variations of the each of the aforementioned embodiments are also contemplated. For example, in some variations any of the embodiments including insulation conditioning device 30 may include multiple instances of insulation conditioning device 30 provided in flow series, with or without intermediate hose sections and/or with or without other intermediate flexible hose sections or other insulation conditioning devices. For example, a terminal nozzle may be operatively coupled with conduit 32 and configured to receive output blow-in insulation from conduit 32 and direct the blow-in insulation toward an installation site 99. The terminal nozzle may have a diverging or expanding tape configured to slow velocity of blow-in insulation and an associated air stream passing therethrough. Other variations are also contemplated as will occur to one of skill in the art with the benefit and insight of the present disclosure.

[0044]With reference to FIG. 1, there is illustrated an example system 10 configured and operable to perform installation of blow-in loose fill insulation. System 10 includes an insulation blowing machine 20 which may be any of a number of suitable machines configured to receive loose fill insulation and output a blow-in insulation stream comprising loose fill insulation entrained in an airflow. In the illustrated example, insulation blowing machine 20 comprises a hopper section 22 into which loose fill insulation material may be loaded, for example, in the form of a compacted bale. Insulation blowing machine 20 further comprises an agitator 24 section which receives loose fill insulation loaded into the hopper 22, and agitates, churns, or otherwise processes the received loose fill insulation to break up and loosen the received loose fill insulation. Insulation blowing machine 20 further comprises a blower section 26 configured and operable to generate an airflow into which loose fill insulation from the agitator 24 is introduced and entrained to provide a blow-in insulation stream. Blower section 26 is also configured and operable to provide pressure to push the blow-in insulation stream comprising loose fill insulation entrained in an airflow through downstream components of system 10. One or more airlocks may be provided intermediate hopper section 22 and blower section 26 and may be configured to allow passage of loose fill insulation from the hopper to the blower while restricting the passage of air from the blower to the hopper. Such airlocks may be provided intermediate or integrated into hopper section 22, agitator 24 section, and/or blower section 26.

[0045]System 10 comprises a plurality of flexible hose sections 2, 3 and a plurality of insulation conditioning devices 30, 200, 300 which are operatively coupled with insulation blowing machine 20. Flexible hose sections 2, 3 may be provided in various forms including, for example, as sections of spiral hose comprising a threadlike or screwlike exterior surface. In some embodiments, flexible hose sections 2, 3 may be configured and provided as sections of Mark 2 insulation blowing hose. In other embodiments, flexible hose sections 2, 3 may be configured and provided in other forms as will occur to one of skill in the art with the benefit and insight of the present disclosure. Various embodiments may comprise various hose diameters, for example, 2.5 inches, 3 inches, 4 inches, or other diameters.

[0046]Flexible hose sections 2, 3 may be provided in various lengths suitable for the needs of various jobsites and may be stored, extracted from or retracted into a reel or other storage device. In the illustrated example, first flexible hose section 2 is attached and operatively coupled with insulating blowing machine 20. Insulation conditioning device 100 is attached to and operatively coupled with first flexible hose section 2. In some embodiments, insulation conditioning device 100 may be attached to and operatively coupled with insulating blowing machine 20 rather than first flexible hose section 2. Second flexible hose section 3 is attached to and operatively coupled with insulation conditioning device 100. Insulation conditioning device 200 is attached to and operatively coupled with second flexible hose section 3. Insulation conditioning device 300 is attached to and operatively coupled with insulation conditioning device 200. Insulation conditioning device 300 is configured and operable and to output blow-in insulation 98 and direct the blow-in insulation 98 to an installation site 99 which may comprise, for example, an attic, wall cavity, floor cavity, or other installation site as will occur to one of skill in the art with then benefit and insight of the present disclosure.

[0047]It shall be appreciated that system 10, and other systems configured and operable to perform installation of blow-in loose fill insulation may be provided in various embodiments comprising one or more of insulation conditioning device 100, insulation conditioning device 200, and insulation conditioning device 300. Some embodiments comprise insulation conditioning device 100 and omit insulation conditioning device 200 and insulation conditioning device 300. Some embodiments comprise insulation conditioning device 200 and omit insulation conditioning device 100 and insulation conditioning device 300. Some embodiments comprise insulation conditioning device 300 and omit insulation conditioning device 100 and insulation conditioning device 200. Some embodiments comprise insulation conditioning device 100 and insulation conditioning device 200 and omit insulation conditioning device 300. Some embodiments comprise insulation conditioning device 100 and insulation conditioning device 300 and omit insulation conditioning device 200. Some embodiments comprise insulation conditioning device 200 and insulation conditioning device 300 and omit insulation conditioning device 100. Some embodiments comprise insulation conditioning device 100, insulation conditioning device 200, and insulation conditioning device 300.

[0048]Variations of the each of the aforementioned embodiments are also contemplated. For example, in some variations any of the embodiments including insulation conditioning device 100 may include multiple instances of insulation conditioning device 100 provided in flow series, with or without intermediate hose sections and/or with or without other intermediate insulation conditioning devices. In some variations any of the embodiments including insulation conditioning device 200 may include multiple instances of insulation conditioning device 200 provided in flow series, with or without intermediate hose sections and/or with or without other intermediate insulation conditioning devices. Other variations are also contemplated as will occur to one of skill in the art with the benefit and insight of the present disclosure.

[0049]With reference to FIGS. 2-7, 8A, 8B, 9A, 9B, 10A, 10B, 11A, and 11B, there are illustrated several views of an example embodiment of insulation conditioning device 30 of FIG. 1. In the illustrated example, insulation conditioning device 30 comprises a conduit 32 extending intermediate a first end opening 91 and a second end opening 92. First end opening 91 is configured to receive a blow-in insulation stream (generally denoted by arrow F1) comprising loose fill insulation entrained in an airflow. Second end opening 92 is configured to output the blow-in insulation stream from the conduit 32. Conduit 32 may be configured and provided as a single piece or in multiple pieces which are fixedly coupled or attached together. Additionally, as further described herein, conduit 32 may be formed from a plurality of structures operatively coupled with one another, may be integrally formed, for example, as a unitary structure or as a monolithic structure.

[0050]In the illustrated embodiment, conduit 32 is a configured and provided in a generally cylindrical tubular form extending along an axial length between first end opening 91 and second end opening 92. In other embodiments, conduit 32 may comprise other forms including, for example, non-cylindrical tubular forms such as coiled, spiraled, s-curved, or other tubular forms bounding flow passages having similar shapes. In some embodiments conduit 32 may comprise or may have features of a flexible hose section such as a section of Mark 2 insulation blowing hose, examples of which are depicted in the illustrated embodiment. Conduit 32 further comprises an inner surface bounding a flow passage extending intermediate first end opening 91 and second end opening 92. In the illustrated example, the flow passage has a generally cylindrical but interrupted shape bounded by the inner surface of conduit 32 and a plurality of stepped inner diameter profile portions.

[0051]An axial flow direction of the blow-in insulation stream extends along the flow passage of conduit 32 intermediate first end opening 91 and second end opening 92, and generally in the direction indicated by arrow F1. It shall be appreciated that axial flow of the blow-in insulation stream in an axial flow direction may comprise one component of a net flow of the blow-in insulation stream. Such a net flow may include additional components such as a swirl, tumble, shear, and other components as will occur to one of skill in the art with the benefit and insight of the present disclosure which may be imparted or promoted by one or more stepped inner diameter profile portions. Thus, a net flow of the blow-in insulation stream through the flow passage may include both an axial flow component and other directional flow components which may be imparted or promoted by one or more stepped inner diameter profile portions.

[0052]Relative positions in the flow passage within conduit 32 may be described relative to the axial flow direction. For example, a first position closer to first end opening 91 than a second position of conduit may be described as being upstream of the second position. Similarly, a third position closer to second end opening 92 than a fourth position may be described as being downstream of the fourth position. Orientations within the flow passage may also be described in relation to an axial flow direction. For example, a structure oriented toward or oriented to face first end opening 91 may described as facing toward a flow direction of the blow-in insulation stream. A structure oriented toward or oriented to face second end opening 92 may described as facing away from a flow direction of the blow-in insulation stream.

[0053]In the illustrated example, an inner surface of conduit 32 bounding the flow passage extending therethrough intermediate the first end opening 91 and the second end opening 92 comprises a first region comprising a first set of stepped inner diameter profile portions 34, 36 and a second region positioned downstream of the first region and comprising a second set of stepped inner diameter profile portions 35, 37. The first set of stepped inner diameter profile portions 34, 36 and the second set of stepped inner diameter profile portions 35, 37 may be substantially similar or substantially identical as in the illustrated example, or may differ from one another in various respects. The first set of stepped inner diameter profile portions 34, 36 and the second set of stepped inner diameter profile portions 35, 37 are configured and operable to break up, decrease density of, loft, and/or loosen loose fill insulation entrained in airflow that impinges thereupon.

[0054]While the first region of the illustrated example and the first set of stepped inner diameter profile portions comprises two stepped inner diameter profile portions 34, 36, other embodiments may include a greater or lesser number of stepped inner diameter profile portions of the first region. Similarly, while the second region of the illustrated example and the first set of stepped inner diameter profile portions comprises two stepped inner diameter profile portions 35, 37, other embodiments may include a greater or lesser number of stepped inner diameter profile portions of the second region.

[0055]In the illustrated example, the first set of stepped inner diameter profile portions 34, 36 and the second set of stepped inner diameter profile portions 35, 37 differ from one another in certain aspects. In other embodiments, the first set of stepped inner diameter profile portions 34, 36 and the second set of stepped inner diameter profile portions 35, 37 may be substantially similar or substantially identical.

[0056]The first set of stepped inner diameter profile portions 34, 36 and the second set of stepped inner diameter profile portions 35, 37 may be provided in a number of forms of the illustrated embodiment. In some forms, the first set of stepped inner diameter profile portions 34, 36 and the second set of stepped inner diameter profile portions 35, 37 may be separate structures from conduit 32 that are introduced into conduit 32, for example, as ringlike structures according to the illustrated example. In some such forms, the first set of stepped inner diameter profile portions 34, 36 and the second set of stepped inner diameter profile portions 35, 37 may be threaded into a threadlike profile 39 provided in an inner surface of conduit 32. For example, threadlike features 52, 54 of the first set of stepped inner diameter profile portions 34, 36 and thread features 53, 55 of the second set of stepped inner diameter profile portions 35, 37 may engage threadlike profile 39 and may be secured in place relative thereto by interference fitting, adhesive, set pins, set screws, or other fasteners as will occur to one of skill in the art with the benefit and insight of the present disclosure. A tool such as tool 96 of FIG. 12 may be coupled with a driver (not illustrated) and with the first set of stepped inner diameter profile portions 34, 36 and the second set of stepped inner diameter profile portions 35, 37 and may be rotated to advance the first set of stepped inner diameter profile portions 34, 36 and the second set of stepped inner diameter profile portions 35, 37 into conduit 32.

[0057]In some forms, the first set of stepped inner diameter profile portions 34, 36 and the second set of stepped inner diameter profile portions 35, 37 may be integrally formed with conduit 32. In some such forms, the first set of stepped inner diameter profile portions 34, 36, the second set of stepped inner diameter profile portions 35, 37, and conduit 32 may be formed into a unitary structure during manufacture. In some such forms, the first set of stepped inner diameter profile portions 34, 36, the second set of stepped inner diameter profile portions 35, 37, and conduit 32 may be formed as a monolithic structure.

[0058]In the illustrated example, the first set of stepped inner diameter profile portions comprise smaller minimum inner diameter than the second set of stepped inner diameter profile portions. Thus, for example, the minimum inner diameter of stepped inner diameter profile portions 34, 36 is less than the minimum stepped inner diameter profile portions 35, 37.

[0059]Inner diameter profile portion 34 comprises a leading lip 62 comprising an inner surface 71 and stepped body portion 64 extending downstream therefrom. Stepped body portion 64 of inner diameter profile portion 34 includes step surfaces 72, 73 and is positioned downstream of the first leading lip 62 and comprises a smaller inner diameter at step surface 73 than inner surface 71 of first leading lip 62. A fence of inner diameter profile portion 34 comprising fence portions 74, 75 is positioned downstream of stepped body portion 64 and comprises a smaller inner diameter at fence portions 74, 75 than stepped body portion 64 at inner diameter at step surface 73.

[0060]Inner diameter profile portion 34 is an example of a stepped inner diameter profile portion comprising a set of two or more inwardly extending stepped portions including at least a first stepped portion downstream of and extending inwardly from an adjacent portion of the inner surface of conduit 32 and a second stepped portion downstream of and extending inwardly from the first stepped portion. In the illustrated example, inner diameter profile portion 34 may be considered to include three stepped portions.

[0061]A first stepped portion of inner diameter profile portion 34 is provided in the form of leading lip 62 wherein a leading surface of lip 62 extends inwardly from an adjacent portion of the inner surface of conduit 32 and inner surface 71 of lip 62 is inwardly offset from the adjacent portion. Although the first stepped portion is provided in the form of lip 62 in the illustrated example, it shall be appreciated that the first stepped portion may be provided in other forms in other embodiments or may be omitted in some embodiments.

[0062]A second stepped portion of inner diameter profile portion 34 is provided in the form of step surfaces 72, 73 wherein surface 72 extends inwardly from an adjacent portion of lip 62 and step surface 73 is inwardly offset from the adjacent portion. Although the second stepped portion is provided in the form of step surfaces 72, 73 in the illustrated example, it shall be appreciated that the second stepped portion may be provided in other forms in other embodiments or may be omitted in some embodiments.

[0063]A third stepped portion Inner diameter profile portion 34 is provided in the form of the fence comprising fence portions 74, 75 wherein a leading surface of fence portions 74, 75 extends inwardly from an adjacent portion of the inner surface of conduit 32 and an inner diameter surface of fence portions 74, 75 is inwardly offset from the adjacent portion. Although the third stepped portion is provided in the form of the fence comprising fence portions 74, 75 in the illustrated example, it shall be appreciated that the third stepped portion may be provided in other forms in other embodiments or may be omitted in some embodiments.

[0064]Inner diameter profile portion 34 comprises a set of gate regions 79 in the form of gaps or flow apertures extending into and separating segments of the stepped portions of inner diameter profile portion 34 and proving an inner diameter greater than adjacent portions of stepped body portion 64. Gate regions 79 and/or stepped body portion 64 may impart or promote turbulent flow of loose fill insulation entrained in airflow passing across or over inner diameter profile portion 34. For example, a portion of such insulation entrained in airflow may be forced to travel over and to tumble over gate regions 79 and may encounter zones of recirculation or vortices on a downstream side of gate regions 79. Furthermore, another portion of such insulation entrained in airflow may flow through gate regions adjacent such zones of recirculation or vortices and may further contribute to their formation and/or stability. In some embodiments, such effects may be analogous, for example, to a river flowing over a rock or other obstruction creating zones of recirculation or vortices on a downstream side of the rock or obstruction.

[0065]In the illustrated example, inner diameter profile portion 36 is configured and provided in a substantially identical or substantially similar form including substantially similar features as inner diameter profile portion 34. For example, leading lip 66 of inner diameter profile portion 36 is substantially identical to or substantially similar to corresponding leading lip 62 of inner diameter profile portion 34 and stepped body portion 68 is substantially identical to or substantially similar to stepped body portion 64. Likewise, leading lip 66 of inner diameter profile portion 36 comprises an inner surface corresponding to inner surface 71, step surfaces corresponding to step surfaces 72, 73, and a fence including fence portions corresponding to fence portions 74, 75. Furthermore, inner diameter profile portion 36 includes gate regions which are substantially similar to or substantially identical to gate regions 79 many may create and/or provide substantially similar or substantially effects and functionality. Inner diameter profile portion 36 is an example of a stepped inner diameter profile portion comprising a set of two or more inwardly extending stepped portions including at least a first stepped portion downstream of and extending inwardly from an adjacent portion of the inner surface of conduit 32 and a second stepped portion downstream of and extending inwardly from the first stepped portion. In the illustrated example, inner diameter profile portion 35 may be considered to include three stepped portions generally corresponding to those described in connection with inner diameter profile portion 34.

[0066]In the illustrated example, the conduit 32 is configured and provided in a form including a plurality of features corresponding to a flexible hose section such as a section of Mark 2 insulation blowing hose. Thus, for example, conduit 32 comprises an alternating arrangement of lobe joints portions 44 and groove portions 42. Groove portions 42 may define a threadlike profile 39 on their inner surface which may comprise a maximum inner diameter greater than that of the first leading lip 62 and first leading lip 66. Inner diameter profile portion 36 and inner diameter profile portion 34 are spaced apart from one another with a portion of the inner surface of conduit 32 extending therebetween.

[0067]Inner diameter profile portion 35 comprises a leading lip 63 comprising an inner surface 81 and stepped body portion 65 extending downstream therefrom. Stepped body portion 65 of inner diameter profile portion 35 comprises step surfaces 82, 83 is positioned downstream of the first leading lip 63 and comprises a smaller inner diameter at step surface 83 than inner surface 81 of first leading lip 63. A fence of inner diameter profile portion 35 comprising fence portion 84 is positioned downstream of stepped body portion 65 and comprises a smaller inner diameter at fence portion 84 than stepped body portion 65 at inner diameter at step surface 83.

[0068]Inner diameter profile portion 35 is an example of a stepped inner diameter profile portion comprising a set of two or more inwardly extending stepped portions including at least a first stepped portion downstream of and extending inwardly from an adjacent portion of the inner surface of conduit 32 and a second stepped portion downstream of and extending inwardly from the first stepped portion. In the illustrated example, inner diameter profile portion 35 may be considered to include three stepped portions.

[0069]A first stepped portion of inner diameter profile portion 35 is provided in the form of leading lip 63 wherein a leading surface of lip 63 extends inwardly from an adjacent portion of the inner surface of conduit 32 and inner surface 81 of lip 63 is inwardly offset from the adjacent portion. Although the first stepped portion is provided in the form of lip 63 in the illustrated example, it shall be appreciated that the first stepped portion may be provided in other forms in other embodiments or may be omitted in some embodiments.

[0070]A second stepped portion of inner diameter profile portion 35 is provided in the form of step surfaces 82, 83 wherein surface 82 extends inwardly from an adjacent portion of lip 63 and step surface 83 is inwardly offset from the adjacent portion. Although the second stepped portion is provided in the form of step surfaces 82, 83 in the illustrated example, it shall be appreciated that the second stepped portion may be provided in other forms in other embodiments or may be omitted in some embodiments.

[0071]A third stepped portion Inner diameter profile portion 34 is provided in the form of the fence comprising fence portion 84 wherein a leading surface of fence portion 84 extends inwardly from an adjacent portion of the inner surface of conduit 32 and an inner diameter surface of fence portion 84 is inwardly offset from the adjacent portion. Although the third stepped portion is provided in the form of the fence comprising fence portion 84 in the illustrated example, it shall be appreciated that the third stepped portion may be provided in other forms in other embodiments or may be omitted in some embodiments.

[0072]Inner diameter profile portion 35 comprises a set of gate regions 89 in the form of gaps or flow apertures extending into and separating segments of the fence portions and stepped portions of stepped inner diameter profile portion 35 and proving an inner diameter greater than adjacent portions of stepped body portion 65. Gate regions 89 and/or stepped body portion 65 may impart or promote turbulent flow of loose fill insulation entrained in airflow passing across or over inner diameter profile portion 35. For example, a portion of such insulation entrained in airflow may be forced to travel over and to tumble over gate regions 89 and may encounter zones of recirculation or vortices on a downstream side of gate regions 89. Furthermore, another portion of such insulation entrained in airflow may flow through gate regions adjacent such zones of recirculation or vortices and may further contribute to their formation and/or stability. In some embodiments, such effects may be analogous, for example, to a river flowing over a rock or other obstruction creating zones of recirculation or vortices on a downstream side of the rock or obstruction.

[0073]In the illustrated example, inner diameter profile portion 37 is configured and provided in a substantially identical or substantially similar form including substantially similar features as inner diameter profile portion 35. For example, leading lip 67 of inner diameter profile portion 37 is substantially identical to or substantially similar to corresponding leading lip 63 of inner diameter profile portion 35 and stepped body portion 69 is substantially identical to or substantially similar to stepped body portion 65. Likewise, leading lip 67 of inner diameter profile portion 37 comprises an inner surface corresponding to inner surface 81, step surfaces corresponding to step surfaces 82, 83, and a fence including fence portions corresponding to fence portion 84. Furthermore, inner diameter profile portion 37 includes gate regions which are substantially similar to or substantially identical to gate regions 89 many may create and/or provide substantially similar or substantially effects and functionality. Inner diameter profile portion 37 is an example of a stepped inner diameter profile portion comprising a set of two or more inwardly extending stepped portions including at least a first stepped portion downstream of and extending inwardly from an adjacent portion of the inner surface of conduit 32 and a second stepped portion downstream of and extending inwardly from the first stepped portion. In the illustrated example, inner diameter profile portion 37 may be considered to include three stepped portions generally corresponding to those described in connection with inner diameter profile portion 35.

[0074]In the illustrated example, inner diameter profile portion 36 and inner diameter profile portion 34 are spaced apart from one another with a portion of the inner surface of conduit 32 extending therebetween. Furthermore, the first region comprising the first set of stepped inner diameter profile portions 34, 36 and the second region comprising the second set of stepped inner diameter profile portions 35, 37 are spaced apart from one another with a portion of the inner surface of conduit 32 extending therebetween. The spans of the inner surface of conduit 32 extending upstream of inner diameter profile portion 34, between inner diameter profile portion 34 and inner diameter profile portion 36, between inner diameter profile portions 34, 36 and inner diameter profile portions 35, 37, between inner diameter profile portion 35 and inner diameter profile portion 37, and downstream of inner diameter profile portion 36 may contribute to breaking up, decreasing density of, lofting, and/or loosening of loose fill insulation entrained in airflow that impinges thereupon. Such spans may be provided in a number of lengths varying from those of the illustrated embodiment as will occur to one of skill in the art. In some embodiments, such spans and the spacing of inner diameter profile portions 34, 36, 35, 37 may be adjusted or tuned to provide a desired character or degree of breaking up, decreasing density of, lofting, and/or loosening of loose fill insulation.

[0075]In the illustrated example, axial flow gaps 137 separate each of the vanes of each of the plurality of rings and facilitate axial flow of the blow-in insulation stream downstream of the trailing edges of the plurality of swirl vanes. Other embodiments may comprise swirl vane arrangements providing other dimensions of axial flow gaps or overlapping arrangements of vanes without axial flow gaps or with flow gaps oriented at an angle offset from an axial direction.

[0076]With reference to FIG. 13, there is illustrated an example terminal nozzle 302 which is configured and operable to operatively coupled with second end opening 92 of insulation conditioning device 30. In the illustrated example, terminal nozzle 302 comprises a nozzle body 410 comprising a first end opening 420, a second end opening 440, and an interior surface 430 bounding a flow passage 435 extending intermediate first end opening 420 and second end opening 440. First end opening 420 is configured to receive a blow-in insulation stream (generally denoted by arrow F4) comprising loose fill insulation entrained in an airflow. Second end opening 440 is configured to output the blow-in insulation stream from nozzle body 410.

[0077]An axial flow direction of the blow-in insulation stream extends along flow passage 435 intermediate first end opening 420 and second end opening 440, and generally in the direction indicated by arrow F4. It shall be appreciated that axial flow of the blow-in insulation stream in an axial flow direction may comprise one component of a net flow of the blow-in insulation stream. Such a net flow may include additional components and a net flow of the blow-in insulation stream through flow passage 435 may include both an axial flow component and other directional flow components. Relative positions in flow passage 435 and orientations within flow passage 435 may be described relative to the axial flow direction using conventions and terminology such as those described above in connection with insulation conditioning device 30.

[0078]Nozzle body 410 comprises a connector portion 452, a diverging portion 554, and a nozzle outlet portion 456 at a terminus of nozzle body 410. Connector portion 452 comprises connecting features (not depicted in the illustrated view) which may be structured and configured to engage with insulation conditioning device 30 in a variety of manners, for example, by threading into or threading over conduit 32 or in various other manners as will occur to one if skill in the art with the benefit and insight of the present disclosure. In the illustrated example, interior surface 430 is configured to be substantially smooth. Other embodiments contemplate other interior surface profiles.

[0079]Diverging portion 454 extends intermediate first end opening 420 and nozzle outlet portion 456. Flow passage 435 comprises a sectional area which increases along the diverging portion 454 from a first sectional area 453 adjacent first end opening 420 and adjoining connector portion 452 to a second sectional area 455 adjacent and adjoining nozzle outlet portion 456. It shall be appreciated that a cross sectional area may be defined, for example, as the area of a radial section of flow passage normal to the axial flow direction as well in other manners as will occur to one of skill in the art with the benefit and insight of the present disclosure.

[0080]In the illustrated example, diverging portion 454 spans an axial length between connector portion 452 and nozzle outlet portion 456. In other embodiments, connector portion 452 may be omitted from nozzle body 410 and a cooperating structure may be coupled directly to diverging portion 454. Such embodiments may comprise a converging portion which spans an axial length between a first end opening and a nozzle outlet portion of a nozzle body.

[0081]With reference to FIGS. 14A and 14B, there is illustrated an example system 10′ configured and operable to perform installation of blow-in loose fill insulation. System 10′ may include an insulation blowing machine (not depicted) which may be any of a number of suitable machines configured to receive loose fill insulation and output a blow-in insulation stream comprising loose fill insulation entrained in an airflow such as insulation blowing machine 20 illustrated and described in connection with FIG. 1.

[0082]System 10′ comprises one or more flexible hose sections 28′ and an insulation conditioning device 30′ which are operatively coupled with the insulation blowing machine. The one or more flexible hose sections 28′ may be provided in various forms and configurations including, for example, those described in connection with the one or more flexible hose sections 28 illustrated and described in connection with FIG. 1.

[0083]Insulation conditioning device 30′ is attached to and operatively coupled with one of the one or more flexible hose sections 28′ by a coupling 29'. Insulation conditioning device 30′ is configured and operable and to output blow-in insulation and direct the blow-in insulation toward an installation site which may comprise, for example, an attic, wall cavity, floor cavity, or other installation site as will occur to one of skill in the art with then benefit and insight of the present disclosure.

[0084]Variations of the each of the aforementioned embodiments are also contemplated. For example, in some variations any of the embodiments including insulation conditioning device 30′ may include multiple instances of insulation conditioning device 30′ provided in flow series, with or without intermediate hose sections and/or with or without other intermediate flexible hose sections or other insulation conditioning devices. In the illustrated example, terminal nozzle 302′ is operatively coupled with insulation conditioning device 30′ and is configured to receive output blow-in insulation from insulation conditioning device 30′ and direct the blow-in insulation toward an installation site. Terminal nozzle 302′ may have attributes and features such as those of terminal nozzle 302 illustrated and described in connection with FIG. 13.

[0085]In the illustrated example, insulation conditioning device 30′ comprises a conduit 32′ extending intermediate a first end opening 91′ and a second end opening 92′. First end opening 91′ is configured to receive a blow-in insulation stream (generally denoted by arrow F1′) comprising loose fill insulation entrained in an airflow. Second end opening 9′2 is configured to output the blow-in insulation stream from the conduit 32′. Conduit 32′ may be configured and provided as a single piece or in multiple pieces which are fixedly coupled or attached together. Additionally, as further described herein, conduit 32′ may be formed from a plurality of structures operatively coupled with one another, may be integrally formed, for example, as a unitary structure or as a monolithic structure.

[0086]In the illustrated embodiment, conduit 32′ is a configured and provided in a generally cylindrical tubular form extending along an axial length between first end opening 91′ and second end opening 92′. In other embodiments, conduit 32′ may comprise other forms including, for example, non-cylindrical tubular forms such as coiled, spiraled, s-curved, or other tubular forms bounding flow passages having similar shapes. In some embodiments conduit 32′ may comprise or may have features of a flexible hose section such as section of Mark 2 insulation blowing hose, examples of which are depicted in the illustrated embodiment. Conduit 32′ further comprises an inner surface bounding a flow passage extending intermediate first end opening 91′ and second end opening 92′. In the illustrated example, the flow passage has a generally cylindrical but interrupted shape bounded by the inner surface of conduit 32′, a plurality of stepped inner diameter profile portions 34′ and a plurality of stepped inner diameter profile portions 35′.

[0087]An axial flow direction of the blow-in insulation stream extends along the flow passage of conduit 32′ intermediate first end opening 91′ and second end opening 92′, and generally in the direction indicated by arrow F1′. It shall be appreciated that axial flow of the blow-in insulation stream in an axial flow direction may comprise one component of a net flow of the blow-in insulation stream. Such a net flow may include additional components such as a swirl, tumble, shear, and other components as will occur to one of skill in the art with the benefit and insight of the present disclosure which may be imparted or promoted by one or more stepped inner diameter profile portions. Thus, a net flow of the blow-in insulation stream through the flow passage may include both an axial flow component and other directional flow components which may be imparted or promoted by one or more stepped inner diameter profile portions.

[0088]Relative positions in the flow passage within conduit 32′ may be described relative to the axial flow direction. For example, a first position closer to first end opening 91′ than a second position of conduit may be described as being upstream of the second position. Similarly, a third position closer to second end opening 92′ than a fourth position may be described as being downstream of the fourth position. Orientations within the flow passage may also be described in relation to an axial flow direction. For example, a structure oriented toward or oriented to face first end opening 91′ may described as facing toward a flow direction of the blow-in insulation stream. A structure oriented toward or oriented to face second end opening 92′ may described as facing away from a flow direction of the blow-in insulation stream.

[0089]In the illustrated example, an inner surface of conduit 32′ bounding the flow passage extending therethrough intermediate the first end opening 91′ and the second end opening 92′ comprises a first region comprising the plurality of stepped inner diameter profile portions 34′ and a second region positioned downstream of the first region and comprising the plurality of stepped inner diameter profile portions 35′.

[0090]The plurality of stepped inner diameter profile portions 34′ may be substantially the same as and may comprise substantially the same attributes, features, and functionalities as the set of stepped inner diameter profile portions 34, 36 illustrated and described in connection with certain ones of FIGS. 1-12. In the illustrated example, the plurality of stepped inner diameter profile portions 34′ comprise twelve (12) portions 34a′ through 34l′. Other embodiments may comprise a different number of portions. The plurality of stepped inner diameter profile portions 34′ are configured and operable to break up, decrease density of, loft, and/or loosen loose fill insulation entrained in airflow that impinges thereupon.

[0091]The plurality of stepped inner diameter profile portions 35′ may be substantially the same as and may comprise substantially the same attributes, features, and functionalities as the set of stepped inner diameter profile portions 35, 37 illustrated and described in connection with certain ones of FIGS. 1-12. In the illustrated example, the plurality of stepped inner diameter profile portions 35′ comprise twelve (12) portions 35a′ through 35l′. Other embodiments may comprise a different number of portions. The plurality of stepped inner diameter profile portions 35′ are configured and operable to break up, decrease density of, loft, and/or loosen loose fill insulation entrained in airflow that impinges thereupon.

[0092]As illustrated in FIG. 15A and FIG. 15B, coupling 29′ includes a coupling portion 129′ including exterior threads which are threaded into and threadedly coupled with the one of the one or more flexible hose sections 28′. Coupling 29′ further includes a coupling portion 229′ including exterior threads which are threaded into and threadedly coupled with the with insulation conditioning device 30′. As further illustrated in FIG. 16, a coupling 29″ may include a non-tapered coupling portion 129″ and a tapered coupling portion 229″. In other embodiments, coupling portion 129″ may be tapered and coupling portion 229″ may be non-tapered. In other embodiments, coupling portion 129″ may be tapered and coupling portion 229″ may be tapered.

[0093]As further illustrated in FIG. 17A and FIG. 17B, another example coupling 29′″ includes a coupling portion 129′″ including exterior threads which can be threaded into and threadedly coupled with the one of the one or more flexible hose sections 28′. Coupling 29′″ further includes a coupling portion 229′″ including exterior threads can be threaded into and threadedly coupled with the with insulation conditioning device 30′. Coupling portion 129′″ is rotatably coupled with and rotatable coupling portion 229′″ of coupling 29″′. A retainer 329′″ is provided intermediate a body portion of coupling portion 129′″ which is inserted into a body portion of coupling portion 229′″ to retain the respective body portions together while permitting them to rotate relative to one another.

[0094]As further illustrated in FIG. 18, a coupling 29″″ includes a coupling portion 129′″ including exterior threads which can be threaded into and threadedly coupled with the one of the one or more flexible hose sections 28′. Coupling 29″″ further includes a coupling portion 229″″ including exterior threads can be threaded into and threadedly coupled with the with insulation conditioning device 30′. Coupling portion 129″″ is rotatably coupled with and rotatable coupling portion 229″″ of coupling 29″″. A bearing portion 429′″ and a retainer 329′″ is provided intermediate a body portion of coupling portion 129′″ which is inserted into a body portion of coupling portion 229′″ to retain the respective body portions together while permitting them to rotate relative to one another.

[0095]With reference to FIG. 19, there are illustrated certain aspects of an example assembly process 1100. In assembly process 1100, tool 96 has been utilized to rotate rings in the form of the plurality of stepped inner diameter profile portions 34′ and the plurality of stepped inner diameter profile portions 35′ into conduit 32′ in a manner substantially the same as that described in connection with FIG. 12.

[0096]With reference to FIGS. 20A, 20B, and 20C there are illustrated certain aspects of an example assembly system and process suitable for manufacturing an insulation conditioning device such as insulation conditioning device 30 The illustrated system and process utilizes a mandrel 1222 which is coupled with and rotatably by an actuation unit 1220, for example, by one or more crank mechanisms, motors, or the like.

[0097]A first plurality of stepped inner diameter profile portions 34a′, 34b′, 34c′, 34d′ are mounted on mandrel 1222. While four stepped inner diameter profile portions are depicted in FIG. 20A, it shall be appreciated that different numbers of mandrel-mounted stepped inner diameter profile portions are also contemplated. The first plurality of stepped inner diameter profile portions may include the same or similar features as those of inner diameter profile portions 34 described elsewhere herein.

[0098]A second plurality of stepped inner diameter profile portions 35a′, 35b′, 35c′, 35d′ are mounted on mandrel 1222. While four stepped inner diameter profile portions are depicted in FIG. 20A, it shall be appreciated that different numbers of mandrel-mounted stepped inner diameter profile portions are also contemplated. The second plurality of stepped inner diameter profile portions may include the same or similar features as those of inner diameter profile portions 35 described elsewhere herein.

[0099]Mandrel includes a plurality of arms 1224a, 1224b, 1224c including respective engagement members 1225a, 1225b, 1225c, which are extensible and retractable from respective ones of the plurality of arms 1224a, 1224b, 1224c to selectably engage the first plurality of stepped inner diameter profile portions 34a′, 34b′, 34c′, 34d′ and the second plurality of stepped inner diameter profile portions 35a′, 35b′, 35c′, 35d′. FIG. 20B depicts engagement members 1225a, 1225b, 1225c in an extended state and in engagement with stepped inner diameter profile portion 35d. FIG. 20B depicts engagement members 1225a, 1225b, 1225c in an retracted state and out of engagement with stepped inner diameter profile portion 35d. Similar engagement and disengagement of mandrel 1222 may be provided for all of the first plurality of stepped inner diameter profile portions 34a′, 34b′, 34c′, 34d′ and the second plurality of stepped inner diameter profile portions 35a′, 35b′, 35c′, 35d′.

[0100]A conduit 32′ may include the same or similar features as those of conduit 32 described elsewhere herein, including a threadlike profile provided in an inner surface of conduit 32′. Conduit 32′ may be aligned with and advanced toward mandrel 1222 (or vice versa) while mandrel 1222 carries the first plurality of stepped inner diameter profile portions 34a′, 34b′, 34c′, 34d′ and the second plurality of stepped inner diameter profile portions 35a′, 35b′, 35c′, 35d′. At this time mandrel 1222 may be rotated to rotate the first plurality of stepped inner diameter profile portions 34a′, 34b′, 34c′, 34d′ and the second plurality of stepped inner diameter profile portions 35a′, 35b′, 35c′, 35d′. As this procedure continues, the second plurality of stepped inner diameter profile portions 35a′, 35b′, 35c′, 35d′ and the first plurality of stepped inner diameter profile portions 34a′, 34b′, 34c′, 34d′ are sequentially threaded into conduit 32′ to desired locations and desired alignments. The desired locations may comprise a plurality of spacings established by respective locations on mandrel 1222. The desired alignments may comprise a plurality of alignments established by respective locations on mandrel 1222.

[0101]With reference to FIG. 21, there are illustrated certain aspects of an example assembly process 1300. In process 1300, conduit 32′ is thermoformed in two halves. At operation 1302, a first half 32a′ of conduit 32′ is inserted into a first mold portion 1310, and molded rings in the form of the plurality of stepped inner diameter profile portions 34′ and the plurality of stepped inner diameter profile portions 35′ are inserted into first half 32a′. At operation 1304, second half 32b′ of conduit 32′ is inserted over first half 32a′ and the molded rings. At operation 1306 a second mold portion 1312 is placed over the first mold portion 1310 and the second half 32b of conduit 32′ and then the assembly is welded or die-cut together. At operation 1308 a completed insulation conditioning device 30′ including conduit 32′ coupled with the molded rings 32 and is removed from the mold. A terminal nozzle such as terminal nozzle 302 and a connector or a portion thereof such as connector 29′ or a portion thereof may be integrally formed with the insulation conditioning device 30′ or as separate parts.

[0102]With reference to FIG. 22, there are illustrated certain aspects of an example assembly process 1400. In process 1400, at operation 1402 conduit 32′ is thermoformed in one piece, for example, by blow molding or injection molding in a mold including mold portion 1410 and mold portion 1412. At operation 1404, mold portion 1410 and mold portion 1412 are separated and conduit 32′ is removed from the mold. After removal slits can me cut into conduit 32′ at desired intervals, for example, at operation 1406. Alternatively, the slits can be molded into conduit 32′. At operation 1408, molded rings in the form of the plurality of stepped inner diameter profile portions 34′ and the plurality of stepped inner diameter profile portions 35′ are inserted into the slits of conduit 32′. US weld or other to seal & set in place. A terminal nozzle such as terminal nozzle 302 and a connector or a portion thereof such as connector 29′ or a portion thereof may be integrally formed with the insulation conditioning device 30′ or as separate parts. With reference to FIG. 23 and FIG. 23B, there are illustrated certain aspects of an example assembly process 1500.

[0103]With reference to FIG. 23A and FIG. 23B, there are illustrated certain aspects of an example assembly process 1500. Process 1500 involves coupling a plurality of conduit segments (including conduit segments 32k′, 32l′, 32a′, 32b′ and other conduit segments which are not illustrated) with successive molded rings in the form of the plurality of stepped inner diameter profile portions 34′ and the plurality of stepped inner diameter profile portions 35′. Thus, for example, conduit segment 32k′ is coupled with a ring of stepped inner diameter profile portion 34k′ and a ring of stepped inner diameter profile portion 34l′. Conduit segment 32l′ is coupled with a ring of stepped inner diameter profile portion 34l′ and a ring of stepped inner diameter profile portion 35a′. Conduit segment 32a′ is coupled with a ring of stepped inner diameter profile portion 35a′ and a ring of stepped inner diameter profile portion 35b′. Conduit segment 32b′ is coupled with a ring of stepped inner diameter profile portion 35b′.

[0104]With reference to FIG. 24 and FIG. 24B, there are illustrated certain aspects of an example assembly process 1600. In assembly process a first plurality of conduit segments comprising conduit segments 1632a through 1632j (and potentially additional similar segments) are molded as unitary structures. A second plurality of conduit segments comprising conduit segments 1634a through 1634k (and potentially additional similar segments) are molded as unitary structures. The first set of one or more stepped inner diameter profile portions are formed and provided by a first subset of the first plurality of conduits and the second plurality of conduits. The second set of one or more stepped inner diameter profile portions are formed and provided by a second subset of the first plurality of conduits and the second plurality of conduits. The first subset of the first plurality of conduits and the second plurality of conduits are coupled together to form the first region. The second subset of the first plurality of conduits and the second plurality of conduits are coupled together to form the second region. The coupling may utilize segments that incorporate rings, ball & socket joints or other coupling mechanisms.

[0105]With reference to FIG. 25, there are illustrated certain aspects a neoprene sleeve 1660 which may include a viewing window 1670 and may be installed to surround a portion or all of the conduit 32′.

[0106]With reference to FIG. 26A and FIG. 26B, there are illustrated certain aspects of an example assembly process 1700. In process 1700, at least a portion of the conduit 32′ and at least a portion of at least one of the first region comprising the first set of one or more stepped inner diameter profile portions and the second region comprising the second set of one or more stepped inner diameter profile portions are formed as a unitary molded structure. A first plurality of stepped inner diameter profile portions may comprise the twelve (12) portions 34a′ through 34l′. A second plurality of stepped inner diameter profile portions may comprise the twelve (12) portions 35a′ through 35l′. The unitary molded structure comprises a monolithic structure.

[0107]With reference to FIG. 27A, FIG. 27B, and FIG. 27C there are illustrated certain aspects of an example assembly process 1800. Process 1800 comprises, at least a portion of the conduit 32′ and at least a portion of at least one of the first region comprising the first set of one or more stepped inner diameter profile portions and the second region comprising the second set of one or more stepped inner diameter profile portions are formed as a unitary molded structure, for example, in state 1801. The unitary molded structure may then be cut into sections, for example, in state 1802. The sections may subsequently be joined together, for example, in state 1802, to provide portions of conduit 32′ and ultimately insulation conditioning device 30′. As illustrated by this detailed description of example embodiments, the present disclosure contemplates a number of embodiments including the following examples.

[0108]With reference to FIGS. 28-31 there are illustrated several views of an example embodiment of insulation conditioning device 200. In the illustrated example, insulation conditioning device 200 comprises a venturi body 210 comprising a first end opening 220, a second end opening 240, and an interior surface 230 bounding a flow passage 235 extending intermediate first end opening 220 and second end opening 240. First end opening 220 is configured to receive a blow-in insulation stream (generally denoted by arrow F2) comprising loose fill insulation entrained in an airflow. Second end opening 240 is configured to output the blow-in insulation stream from venturi body 210.

[0109]An axial flow direction of the blow-in insulation stream extends along flow passage 235 intermediate first end opening 220 and second end opening 240, and generally in the direction indicated by arrow F2. It shall be appreciated that axial flow of the blow-in insulation stream in an axial flow direction may comprise one component of a net flow of the blow-in insulation stream. Such a net flow may include additional components and a net flow of the blow-in insulation stream through flow passage 235 may include both an axial flow component and other directional flow components. Relative positions in flow passage 235 and orientations within flow passage 235 may be described relative to the axial flow direction using conventions and terminology such as those described above in connection with insulation conditioning device 100.

[0110]Venturi body 210 comprises a connector portion 252, a converging portion 254, a throat portion 256, and a connector portion 258. Connector portion 252 comprises threads 213 which are defined in interior surface 230 and are configured to be threaded onto an end of a flexible insulation hose, such as flexible hose section 35, to secure insulation conditioning device 200 and venturi body 210 to the flexible insulation hose. In the illustrated example, connector portion 252 is integrally formed with venturi body 210. In other embodiments, connector portion 252 may be fixedly coupled or attached to venturi body 210, or adjustably coupled with venturi body 210, for example, in the manner similar to that described in connection with connector portion 114 of insulation conditioning device 100.

[0111]Connector portion 258 comprises slots 257 which are which are defined in interior surface 230 and are configured to matingly engage with corresponding features of another insulation conditioning device, for example, as described in connection with FIG. 14-15.

[0112]Converging portion 254 extends intermediate first end opening 220 and throat portion 256. Flow passage 235 comprises a sectional area which decreases along the converging portion 254 from a first sectional area 253 adjacent first end opening 220 and adjoining connector portion 252 to a second sectional area 255 adjacent and adjoining the throat portion 256. It shall be appreciated that a cross sectional area may be defined, for example, as the area of a radial section of flow passage normal to the axial flow direction as well in other manners as will occur to one of skill in the art with the benefit and insight of the present disclosure.

[0113]The second sectional area 255 of converging portion 254 is less than the first sectional area 253. In the illustrated example, the second sectional area is about 45% of the first sectional area or decreased by about 55%. In other embodiments the sectional area may be about 30%-75% of the first sectional area or decreased by 25%-70%.

[0114]In the illustrated example, converging portion 254 spans an axial length between connector portion 252 and throat portion 256. In other embodiments, connector portion 252 may be omitted from venturi body 210 and a cooperating structure may be coupled directly to converging portion 254. Such embodiments may comprise a converging portion which spans an axial length between a first end opening and a throat portion of a venturi body.

[0115]A suction intake passage 260 extends intermediate and provides fluid communication between an exterior of venturi body 210 and flow passage 235. Suction intake passage 260 extends from an inlet 262 in fluid communication with ambient air 97 surrounding the venturi body to an outlet 268 located adjacent the throat portion 256. It shall be appreciated that ambient air 97 is an example of unpressurized gas or gas at ambient pressure. As the blow-in insulation stream travels through flow passage 235 and converging portion 254 it experiences an increase in velocity and a corresponding drop in pressure. In response, ambient air 97 is drawn into inlet 262, through suction intake passage 260, and out of outlet 268 into the flow of the blow-in insulation stream along the path and in the directions generally indicated by arrow FS. This flow may be a passive response to pressure within venturi body 210 without requiring any pressurization of air or gas flowing into inlet 262.

[0116]The suction intake flow of ambient air 97 from outlet 268 mixes with the blow-in insulation stream flowing through flow passage 235 in throat portion 256 to provide a combined flow. Such mixing and flow may impart tumble to or agitate a peripheral portion of the to the combined flow in a mixing region downstream from outlet 268 promoting agitation and mixing of the combined flow. Such mixing may also entrain more air into combined flow discharged from insulation conditioning device 200 and may concentrate the discharge flow and support further projection distance of discharged insulation material. It shall be appreciated that tumble refers to rotational motion of flow relative to an axis perpendicular an axial flow direction. It shall also be appreciated that tumble may be present tumble may be imparted to the blow-in insulation stream flowing through flow passage 235 in combination with swirl, for example, by first passing the blow-in insulation stream through an insulation conditioning device such as insulation conditioning device 100 and second passing the blow-in insulation stream through an insulation conditioning device such as insulation conditioning device 200.

[0117]In the illustrated example, inlet 262 comprises a plurality of openings 263 formed in a peripheral wall of venturi body 210 and distributed circumferentially about venturi body 210. In other embodiments, inlet 262 may be provided in other forms as will occur to one of skill in the art with the benefit and insight of the present disclosure. In the illustrated example, the plurality of openings 263 are positioned upstream of throat portion 256 relative to an axial flow direction of the blow-in insulation stream. Other embodiments may comprise one or more openings with diffing geometries and/or positioning on venturi body 210 to provide a suitable inlet.

[0118]In the illustrated example, suction intake passage 260 extends axially along a length of the venturi body. Furthermore, outlet 268 comprises a ring-shaped opening and is positioned about a periphery of the throat portion 256. In the illustrated example, the ring-shaped opening of outlet 268 encircles the throat portion 256. Other embodiments may comprise suction inlet passages and/or outlets with other shapes, configurations, orientations and/or positionings.

[0119]In the illustrated example, outlet 268 is oriented to discharge ambient air 97 drawn through inlet 262 and suction intake passage 260 in a direction generally facing second end opening 240 and angled relative to the axial flow direction. Outlet 268 comprises a discharge angle offset 20 degrees from to the axial flow direction. Other embodiments may include other discharge angles, for example, 35 degrees or less, 25 degrees or less, 20 degrees or less, 15 degrees or less, or 10 degrees or less. Other embodiments may include other discharge angles, for example, between 1 and 89 degrees.

[0120]A damper 270 is and positioned adjacent inlet 262 and is adjustable to vary an area of the inlet between a maximum inlet area and a minimum inlet area. In the illustrated example, damper 270 is provided in in the form of a ring rotatably coupled with the venturi body 210 and including a plurality of ring apertures 273 adjustable by rotation of the damper 270 into and out of alignment with openings 263. Such rotation may be effective to selectably increase or decrease the suction intake flow of ambient air 97 through suction intake passage 260. The maximum inlet area may be a total area of openings 263 of inlet 262 when substantially unobstructed by damper 270 or a lesser area. The lesser area may be established by a maximum adjustment stop, such as a detent, tab, post or other protrusion, on one of the damper 270 and the venturi body 210. The minimum inlet area may be zero in the case that openings 263 of inlet 262 are substantially obstructed by damper 270 or a greater area. The lesser area may be established by a minimum adjustment stop, such as a detent, tab, post or other protrusion, on one of the damper 270 and the venturi body 210.

[0121]A number of additional forms and variations of the example embodiment of insulation conditioning device 200 illustrated in FIGS. 28-31 are contemplated. For example, FIG. 32 illustrates an alternate embodiment 200′ of insulation conditioning device 200 including a swirl vane section 250 may be provided over some or all of converging portion 254. Swirl vane section 250 may be provided as an insert coupled with insulation conditioning device 200′ or may be integrally formed therewith. Swirl vane section 250 may comprise a plurality of swirl vanes 251a, 251b, 251c extending inward from converging portion 254 into flow passage 235. The plurality of swirl vanes 251a, 251b, 251c may be configured to impart a swirl to a net flow of the blow-in insulation stream in flow passage 235 which may also be referred to as a net swirl. Such net swirl may comprise characteristics substantially similar to those described in connection with the plurality of swirl vanes 150. Additionally, the plurality of swirl vanes 251a, 251b, 251c may comprise features and variations substantially similar to those described in connection with the plurality of swirl vanes 150.

[0168]While example 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. The use of the terms “a” and “an” and “the” and “at least one” and similar referents in the context of describing the invention (especially in the context of the following claims) are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. The use of the term “at least one” followed by a list of one or more items (for example, “at least one of A and B”) is to be construed to mean one item selected from the listed items (A or B) or any combination of two or more of the listed items (A and B), unless otherwise indicated herein or clearly contradicted by context. The terms “comprising,” “having,” “including,” and “containing” are to be construed as open-ended terms (i.e., meaning “including, but not limited to,”) unless otherwise indicated. Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. All processes described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any non-claimed element as essential to the practice of the invention. 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. Furthermore, 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.