Abstract: The present invention is a loading ramp assembly for loading objects onto a floor of a vehicle. The loading ramp assembly includes a multi-sectioned, foldable ramp capable of being stored in a compact enclosure located under the vehicle floor. The loading ramp assembly also includes a telescopic ramp supporting frame that alone slidably supports and retracts the ramp between an unfolded loading position, inclined from the rear of the vehicle floor to the ground, and a folded storage position within the compact underbody enclosure.

Abstract: An emergency oxygen supply system is disclosed in which a oxygen tank and valve body are mounted on a bracket including a pin maintaining a valve within the valve body in a position blocking fluid flow from the tank to an oxygen mask. Flow of oxygen from the oxygen tank to the oxygen mask is automatically actuated upon removal of the tank and valve body from the bracket, since the pin remains with the bracket, and the valve no longer blocks fluid flow. The valve also provides pressure regulation to prevent overly high pressures from passing from the oxygen tank to the oxygen mask.