Patent ID: 6895648

Claim:
A pneumatic jack device for mounting permanently to the underside of a motor vehicle, comprising: an upper cylindrical high-pressure pneumatic chamber, said chamber having a high pressure air inlet for attaching an external air hose, said pneumatic chamber further having an electrically operated solenoid valve means for operating said jack device, said pneumatic chamber still further having a quick release air outlet fitting for attaching an auxiliary air hose; an outer cylindrical high-pressure housing extending downward from the bottom end of said pneumatic chamber, said outer housing having aligned through-holes on each side near the bottom of said housing for accepting a quick release safety-locking pin; a solid cylindrical lift rod slidably mounted inside said outer cylindrical housing, an interface between said outer cylindrical housing and said solid cylindrical lift rod being comprised of a high-pressure sealing means, said solid cylindrical lift rod having a series of equally spaced through-holes for accepting said quick release safety-locking pin; a momentary electrical switch for applying and releasing air pressure to said solenoid valve for raising said jack device; a solid support plate mounted to the bottom of said solid cylindrical lift rod for contacting the ground, said support plate further having a horizontal storage securing tab with a through-hole extending from one side for accepting a quick release position-locking pin; a C-shaped chassis mounting bracket mounted to the top end of said upper cylindrical pneumatic chamber by rotative attachment means, said bracket allowing said pneumatic jack device to be rotated at least 90-degrees to a near horizontal position for storage, said bracket having a through-hole for accepting a position-locking pin, said bracket further having at least four mounting holes in the top surface for mounting said jack device to a motor vehicle frame; a horizontal stowaway bracket for storing said jack device in an out of the way horizontal position, said stowaway bracket having a through-hole for accepting said position-locking pin, said stowaway bracket further having mounting holes in the top surface for mounting to said motor vehicle frame; said position-locking pin inserted through said through-hole in said C-shaped chassis mounting bracket to secure said jack device in a downward operational position for lifting said motor vehicle, said position-locking pin further being inserted through said through-hole in said horizontal stowaway bracket and said storage securing tab on said solid support plate for storing said jack device in a horizontal position, said position-locking pin further being attached to said stowaway bracket by means of a retaining chain to prevent losing said pin; and said quick release safety-locking pin inserted through said through-holes in said outer cylindrical housing and a desired hole in said solid cylindrical lift rod for securing said jack device for use or storage.