Abstract: A portable negative air pressure apparatus for isolating a treatment subject to permit a selected treatment procedure to be performed by a treatment operator. The apparatus comprises an air source connected to a closed chamber for sealable disposition over the head, neck and upper thorax of the treatment subject with the chamber having air ports, in and out. The chamber has rigid clear sides and a plurality of sealed ports, with the ports including sealed armholes for access, and with sealed gloves connected to the sealed armholes. The chamber also has at least one instrument hatch to permit introduction into the chamber of instruments for carrying-out the selected treatment procedure.

Abstract: A portable negative air pressure apparatus for isolating a treatment subject to permit a selected treatment procedure to be performed by a treatment operator. The apparatus comprises an air source connected to a closed chamber for sealable disposition over the head, neck and upper thorax of the treatment subject with the chamber having air ports, in and out. The chamber has rigid clear sides and a plurality of sealed ports, with the ports including sealed armholes for access, and with sealed gloves connected to the sealed armholes. The chamber also has at least one instrument hatch to permit introduction into the chamber of instruments for carrying-out the selected treatment procedure.

Abstract: The present invention provides a vehicle seat with an elastic membrane which may be selectively tensioned by a bladder. In a preferred embodiment of the present invention the frequency of the seat may be selectively modified by selective inflation of the bladder. The bladder also allows the membrane to be wrapped to a frame of the seat in such a manner to increase the predicted life cycle of the seat membrane utilized.

Abstract: A vehicle seat is provided with an elastic membrane which may be selectively tensioned by a bladder. In a preferred embodiment the frequency of the seat may be selectively modified by selective inflation of the bladder. The bladder also allows the membrane to be wrapped to a frame of the seat in such a manner to increase the predicted life cycle of the seat membrane utilized.

Abstract: A three-wheeled cambering vehicle having a rear noncambering module which has a forwardly extending tongue which rotatably supports a main and front cambering module. The cambering module carries the vehicle operator who steers the vehicle by rotating a single front wheel about a substantially vertical axis and additionally leans in response to vehicle turn and his own will, the two modules are rotatable in relation to each other about an inclined camber axis extending longitudinally of the vehicle. The cambering module has cambering controls at a forward portion thereof to allow the operator to physically engage the controls with his feet for cambering the front module relative to the ground and rear modules.

Abstract: An articulated frame type cambering vehicle employing a cable stabilizer and equalizer which interconnects the trailing arms for controlled pivotal movement and includes means for locking the trailing arms together for vehicle parking in an upright position and for allowing the vehicle to be folded and maintained in a compact configuration so as to facilitate stowage thereof.

Abstract: A cambering vehicle having pivoted trailing arms interconnected through a cambering device including a two-piece bell crank that allows the trailing arms to be locked together and folded towards the vehicle frame so as to provide a compact package which can be readily stowed.

Abstract: An articulated cambering vehicle in which a pair of trailing arms are interconnected to each other and to a front steering frame by a hydraulic stabilizer and equalizer providing: stabilization of the steering frame, the equal and opposite movement of the arms during cambering operation, the hydraulic locking of the trailing arms to the front steering frame for vehicle parking, and the folding and locking of the front steering frame intermediate the trailing arms for vehicle stowage purposes.