Hall Labs LLC

A head covering air filtering device comprising a rigid component comprising a transparent face shield, a fabric component, wherein the rigid component and the fabric component combine to cover an entire head of a user and form a seal around the user's neck. The device further comprises an intake filter to filter all intake air entering the device, an exhaust filter to filter all exhaust air exiting the device, and an air mover causing intake air to enter the device and exhaust air to exit the device.

A rotary transducer is described. The rotary transducer includes a Hall effect sensor, a rotary dial comprising at least two recessed pockets, a first magnet that is positioned within one of the at least two recessed pockets, and a second magnet that is positioned within another one of the at least two recessed pockets. In an acceleration only mode, the rotary dial is rotatable from a center position in a first direction and is not rotatable from the center position in a second direction. This mode is selected when a mode selection screw is inserted into a mode selection orifice. In a bi-directional acceleration/deceleration mode, the rotary dial is rotatable from the center position in the first direction and is rotatable from the center position in the second direction. This mode is selected when the mode selection screw is not inserted into the mode selection orifice.

A personal air filtering device comprising a rigid component comprising a transparent face shield, a fabric component, wherein the face shield and fabric combine to cover an entire head of a user and form a seal around the user's neck, an intake port with an inlet filter, an exhaust port with an exhaust filter, an air mover causing filtered air to enter the intake port from outside the device and exhaust air to exit the exhaust port, and a controller configured to adjust the rate at which the air mover moves air.

The invention is an an anchor for attaching an automated window mechanism to a sliding panel of a window. The sliding panel has a border with an outer face generally perpendicular to the window. The anchor includes a base configured to be secured to the outer face. The base and mechanism mount has a first tongue-and-groove component protruding from the base away from the outer face. The anchor also includes a mechanism mount configured to be secured to the automated window mechanism, the mechanism mount having a second tongue-and-groove component protruding therefrom. The first tongue-and-groove component and the second tongue-and-groove components are shaped and aligned to permit the mechanism mount to slide relative to the base in a direction generally perpendicular to the window, and to thereafter hold the mechanism in proper alignment relative to the sliding panel of the window.

A vehicle for delivering packages, comprising a tractor comprising a motor, a pair of front wheels, a rear wheel, and a rail between the pair of front wheels and the rear wheel, and a removable container comprising a space for storing packages where a bottom of the container is configured to fit over and mount to the rail.

A line tensioner is disclosed. A winch has a winch drum with at least one groove over which a line is passed. The winch has a line tensioner assembly with a stationary cam surface and a plurality of line tensioners rotating with the winch drum. Each has a line gripping portion and a cam follower. The line gripping portion is brought into and out of contact with the line as the cam follower rides along at least a portion of the cam surface.

A label and methods and devices for detecting an environmental factor that exceeds a threshold are described. The label includes a plurality of codable areas. The first portion of the plurality of codable areas are coded according to a first value and the second portion of the plurality of codable areas are coded according to a second value. The label additionally includes an environmentally triggered bubble positioned in one of the plurality of codable areas. The environmentally triggered bubble changes between the first value and the second value when ruptured. As a result, the code that the label represents changes when the environmentally triggered bubble ruptures.

A system for delivering packages from a warehouse to end destinations, the system comprising a fleet of self-propelled long-range transports and a fleet of containers, each configured to be loaded at the warehouse with packages destined for end destinations. Each long-range transport is configured to be loaded with at least four of the loaded containers and transport the at least four of the loaded containers from the warehouse to one or more intermediate destinations. Upon arrival of one of the loaded long-range transports at one of the one or more intermediate destinations, at least one of the loaded containers is separated from the loaded long-range transport, whereupon the separated container delivers packages to end destinations proximate to the one of the one or more intermediate destinations. After delivery of at least some of the packages loaded thereon at the warehouse, the container is once again loaded on the long-range transport and returned to the warehouse to be loaded with more packages.

A winch drum is disclosed. In a first aspect, a first set of teeth are positioned around an outer perimeter of a drum. The first set of teeth taper from a first crown to a first base. A second set of teeth are positioned around the outer perimeter of the drum. The second set of teeth taper from a second crown to a second base. The second set of teeth are offset from the first set of teeth such that a gap between the first bases and the second bases forms a sinusoidal channel for a line to follow the first set of teeth and the second set of teeth becomes a guide for the line so that the line can engage the sinusoidal channel. The line follows the sinusoidal channel and each change of direction along the sinusoidal path causes the line to engage by friction with the first bases and the second bases. In a second aspect, the drum includes a trough that follows a sinusoidal path and wherein the trough is narrower at its bottom than at its top.

There is described a system for producing electrical energy and utilizing associated heat. The system includes a source of fuel, a source of oxygen and a solid oxide fuel cell configured to oxidize the fuel to create electrical energy and heat. The system also includes at least one unit configured to utilize heat generated by the solid oxide fuel cell. This at least one unit is selected from the group consisting of: a solid waste pyrolysis unit; a hydrothermal carbonization unit; a water distillation unit; a water pasteurization unit; a water heating unit; a room heating and cooling unit; and a biomass drying unit. In a second aspect, the invention is a system for providing utilities used in a multi-residence complex.