Abstract: A filter assembly for providing filtered air to an enclosed space includes a housing having an exhaust port in fluid communication with the enclosed space, a first air intake port in fluid communication with the enclosed space, and a second air intake port in fluid communication with a space exterior to the enclosed space. The assembly includes a disposable filter for filtering air from at least one of the first air intake port and the second air intake port. The assembly simultaneously filters recirculated air from the enclosed space and pressurizing air from the space exterior to the enclosed space. The filtered air is provided to the enclosed space through the exhaust port. Air pressure within the enclosed space exceeds the air pressure in the space exterior to the enclosed space when pressurizing air is drawn from the space exterior to the enclosed space and provided to the enclosed space.

Abstract: A method for improving the appearance of a building, and a tool to support the method, especially where the tool uses a commercially available cutting blade used in a manner other than its intended use.

Abstract: Provided is a lifting system for a vehicle comprising a first track mounted within said vehicle, a second track mounted within said vehicle, a first lifting arm extendable from said first track, a second lifting arm extendable from said second track, a first windable support extendable from said first lifting arm, and a second windable support extendable from said second lifting arm.

Abstract: A cargo loading and unloading system for a vehicle comprising a rail pivotally connected to the vehicle, a raising apparatus for raising the rail from a rest position to an elevated position, a lifting attachment that projects from the rail and which is moveable along a portion of the rail, and a lifting attachment driving mechanism for moving the lifting attachment along the portion of the rail.

Abstract: Provided is a lifting system. The lifting system consists of pulleys mounted to moveable, perpendicular shafts that allow the pulleys to be adjustably positioned in horizontal plane. In this way the pulleys can be properly positioned to lift a variety of loads. The system may be powered either manually or by a motor. Further provided is a lifting system, comprising a track and a lifting carriage movable along said track, said lifting carriage including a pulley, a drive shaft for turning said pulley, a support shaft, and a slide assembly connecting said drive shaft to said support shaft, wherein said slide assembly is movable along said drive shaft and the support shaft.

Abstract: A portable filter assembly for providing filtered air to an enclosed space includes a housing having an exhaust port connected to the enclosed space, an internal air intake port connected to the enclosed space, and an external air intake port connected to the outside of the enclosed space. A fan provides a partial vacuum to the internal and external air intake ports. A filter is located in the housing and the assembly is arranged such that the assembly simultaneously filters re-circulated air from the enclosed space through the internal air intake port and filters external air from the outside of the enclosed space through the external air intake port and filters the air to the enclosed space through the exhaust port.

Abstract: A portable filter assembly for providing filtered air to an enclosed space includes a housing having an exhaust port connected to the enclosed space, an internal air intake port connected to the enclosed space, and an external air intake port connected to the outside of the enclosed space. A fan provides a partial vacuum to the internal and external air intake ports. A filter is located in the housing and the assembly is arranged such that the assembly simultaneously filters re-circulated air from the enclosed space through the internal air intake port and filters external air from the outside of the enclosed space through the external air intake port and filters the air to the enclosed space through the exhaust port.

Abstract: A winch includes a first cable reel and a second cable reel. A driveshaft rotates the first cable reel and the second cable reel. The driveshaft is moveable along an axis of rotation between a first position and a second position. The driveshaft operationally engages the first cable reel when in the first position and operationally engages the second cable reel when in the second position.