Quick-to-ground camper jack

Details Quick-to-ground camper jack Quick-to-ground camper jack

1992-10-20

1993-12-28

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Vehicle-body lifters

254425, B60S 902

Patent

active

052732568

ABSTRACT:
A jack for lifting a camper from the bed of a pick-up truck includes a ram with a foot which is normally disposed in a retracted position spaced above the ground to provide clearance during travel of the truck. After the foot has been lowered into contact with the ground, a hand crank is turned and rotates a ball screw which coacts with a ball nut to cause the ram to lift the camper from the truck. By releasing a latch, the retracted foot may be lowered quickly into contact with the ground without turning the crank and simply by stepping on and pushing downwardly against the foot to effect turning of the ball screw.

REFERENCES:
patent: 2446517 (1948-08-01), Black
patent: 3201087 (1965-08-01), Dalton
patent: 3870278 (1975-03-01), Lee
patent: 4316601 (1982-02-01), Osborne et al.
patent: 4597561 (1986-07-01), Wenzel
patent: 4796864 (1989-01-01), Wilson

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