Foldable self-leveling tripod shaped vehicle bumper jack

Details Foldable self-leveling tripod shaped vehicle bumper jack Foldable self-leveling tripod shaped vehicle bumper jack

1975-09-02

1977-04-26

Spar, Robert J.

Implements or apparatus for applying pushing or pulling force

Method or apparatus for placement of conductive wire

Conduit snakes

254 4R, B66C 2360

Patent

active

040197166

ABSTRACT:
A tripod shaped vehicle bumper jack for raising and lowering a vehicle. The jack legs are foldable for ease of storage. Attached to the end of each leg is a rotatable base plate so that the jack is self-leveling when it becomes necessary to lift a vehicle when the ground surface is at an angle to the horizontal. The vehicle is raised and lowered using a bumper hook attached to a cable driven by a worm gear driven windlass.

REFERENCES:
patent: 1599106 (1926-09-01), Weathers
patent: 2222243 (1940-11-01), Sandstrom
patent: 2941633 (1960-06-01), Hanks, Sr. et al.
patent: 3013772 (1961-12-01), Atherton et al.
patent: 3152704 (1964-10-01), Russell
patent: 3240471 (1966-03-01), Townsend
patent: 3313521 (1967-04-01), Sauka

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