Abstract: An adjustable lighting system which is particularly applicable for efficiently and effectively lighting areas of limited ceiling height such as parking garages and the like. A lamp base is supported within a housing in a manner so that it may be vertically adjustable with respect to a lower reflector carried by the housing. An upper reflector, which is vertically adjustable with respect to both the lamp base and the housing, is selected to provide a desired pattern of lighting for a particular installation. Although the lighting system may be employed with a plurality of different lamps, use of an induction lamp is preferred, and when an induction lamp is used, the combination of it with a novel, upper reflector of combined curvature having a central frustoconical downward section, is particular advantageous and provides excellent uniform distribution of illumination.

Abstract: An adjustable lighting system which is particularly applicable for efficiently and effectively lighting areas of limited ceiling height such as parking garages and the like. A lamp base is supported within a housing in a manner so that it may be vertically adjustable with respect to a lower reflector carried by the housing. An upper reflector, which is vertically adjustable with respect to both the lamp base and the housing, is selected to provide a desired pattern of lighting for a particular installation. Although the lighting system may be employed with a plurality of different lamps, use of an induction lamp is preferred, and when an induction lamp is used, the combination of it with a novel, upper reflector of combined curvature having a central frustoconical downward section, is particular advantageous and provides excellent uniform distribution of illumination.

Abstract: A wheel mounting assembly comprises an insert that is adapted to be inserted into a camber tube of a wheelchair. The insert includes a first axle sleeve that is disposed at a first angle relative to horizontal and a second axle sleeve that is disposed at an angle relative to the first angle. Each of the axle sleeves is adapted to receive a wheelchair wheel axle.

Abstract: A lock, which releasably affixes to the end of a cylindrical rod, includes a torus-like case having a central cylindrical passageway that fits over the rod. A spring normally urges a pair of cylindrical pistons located in the case to a locked position where they partially extend into the passageway by a spring. An actuation mechanism allows the pistons to be moved to an unlocked position where they are completely contained within the case by pressing a plunger that extends through the case. The rod contains a plurality of pairs of openings at specified locations along the rod that receive the pistons when the lock is placed on the rod.

Abstract: An exercise apparatus has a platform, including a seat which supports the back and head of the user, that is rotatably attached to a frame that rests on the floor. A pivot arm, which is fixedly attached to the platform and rotatably attached to the frame, allows the platform to move between a first position where the legs of a user lying on the seat are bent approximately 90 degrees at both the knees and at the hips when the user's feet are placed on a leg support that is attached to the frame, and a second position where the user's legs are substantially fully extended. Movement of the platform is resisted by elastomeric weight straps which extend between the frame and the pivot arm or weight plates which are mounted on the platform. The weight straps and weight plates can either be used separately or in combination with one another. Stops limit the travel of the platform so that the platform does not move past its desired first and second positions.

Abstract: The balanced vane hydraulic pump designed for automotive power steering applications employs a two-piece aluminum housing construction, a cam ring, rotor flow regulating valve, a high pressure gallery, and a pressure plate, all located in the rear housing section, and a set of needle bearings located in the front housing section for supporting the pump drive shaft from one end only. The pressure plate has a sculpted portion which communicates with the cam ring side of the pressure plate. The sculpted portion is a wishbone-shaped gallery and a low pressure area, recessed within the face of the pressure plate. The pressure plate also includes high pressure windows which deliver high pressure fluid from the cartridge to the high pressure gallery located within the rear portion of the pump housing.

Abstract: A balanced vane hydraulic pump designed for automotive power steering applications employs a multi-vane rotor and cam ring. The pump has a three-piece aluminum housing construction, with the flow regulating valve located in the rear housing section, the cam ring and rotor located in the center housing section, and a two bearing sets located in the front housing section for supporting the pump drive shaft from one end only. The rear housing section also preferably includes a semi-flexible inner wall which under high pressure conditions bows inwardly toward the cam ring, rotor and vanes, thereby helping to maintain operating clearances so as to relatively help control leakage under varying pump output pressures, even though separate pressure and thrust plates are not used.

Abstract: A rotary exercise apparatus includes a frame which supports a seat assembly and a rotary crank mechanism. The frame has two sets of legs, one which supports the apparatus in an upright position where the crank mechanism can be used by someone sitting on the seat assembly to perform upper body exercises, and another which supports the apparatus in a reclined position where the crank mechanism can be used by someone sitting on the seat assembly to perform lower body exercises. The crank mechanism permits variable amounts of resistance to be imparted against its rotation by urging a shoe having a high friction liner against a rotatably mounted shaft that carries the crank arms. The location of the crank mechanism along the frame and the length of the arms are adjustable to accommodate different size users. In addition, the arms are replaceable to permit different size and shape arms carrying appropriate engagement devices to be used for each type of exercise.

Abstract: The exercise machine of the present invention is comprised of articulated arms which can be moved between retracted cocked positions and extended punching positions in order to simulate the throwing of a punch. The upper portions of the arms are in the form of parallelogram linkages which allow them to be moved between extended and retracted positions at their point of connection with the body of the machine. A shoulder, which rotates about the post which supports the machine activates the parallelogram linkages so as to extend the arm attached to the side of the shoulder which is moved forward and retract the arm on the side of the shoulder which is moved rearward. A motor, which causes the shoulder to rotate is activated by a control system. A microprocessor associated with the control system permits the machine to be preprogrammed to throw a series of punches in particular combinations to give the appearance of an actual boxer.

Abstract: The exercise machine of the present invention is comprised of articulated arms which can be moved between retracted cocked positions and extended punching positions in order to simulate the throwing of a punch. The upper portions of the arms are in the form of parallelogram linkages which allow them to be moved between extended and retracted positions at their point of connection with the body of the machine. A shoulder, which rotates about the post which supports the machine activates the parallelogram linkages so as to extend the arm attached to the side of the shoulder which is moved forward and retract the arm on the side of the shoulder which is moved rearward. A motor, which causes the shoulder to rotate is activated by a control system. A microprocessor associated with the control system permits the machine to be preprogrammed to throw a series of punches in particular combinations to give the appearance of an actual boxer.

Abstract: An exercise chair. Two frame members are held in parallel, spaced apart positions by three rigid transverse connecting members disposed proximate one end serving as the back of the chair. A fabric seat is disposed between the frame members, the seat being detachably held in place by one of the connecting members and by transverse bars resting against the frame members. Extensions are provided at the bottoms of the frame members for varying their length from the back to the front of the chair, shafts being provided on the extensions for use as legs and footrests or, alternatively, hand grips for exercises. With the seat removed the chair can be used to perform push-up and sit-up type exercises, and can be placed on its back to perform dip and chip-up type exercises with the extensions extended and locked in place. The chair can also be used for conventional weightlifting.