Elevator air jack

Details Elevator air jack Elevator air jack

1992-06-29

1993-08-03

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Vehicle attached jack

Hydraulic or pneumatic

B66F 324

Patent

active

052322068

ABSTRACT:
An air jack assembly is provided for a motor vehicle which consists of a cylinder mounted vertically to the underside of a chassis of the motor vehicle approximate a ground engaging wheel of the motor vehicle, with the cylinder having a reciprocal piston rod extendable and retractable longitudinally therefrom. A horizontally disposed ground engagable base plate is secured to a distal end of the piston rod. A mechanism is carried by the motor vehicle, for moving the piston rod longitudinally from the cylinder, to lower the base plate to the ground and raise the chassis of the motor vehicle, so that the wheel will lift off the ground. Another mechanism is carried by the motor vehicle, for moving the piston rod longitudinally into the cylinder, to raise the base plate off the ground and lower the chassis of the motor vehicle, so that the wheel will engage the ground again.

REFERENCES:
patent: 3749363 (1973-07-01), Hauser
patent: 3945610 (1976-03-01), Solie et al.
patent: 4061309 (1977-12-01), Hanser

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