Vehicle in-place electric jack

Details Vehicle in-place electric jack Vehicle in-place electric jack

1975-09-02

1976-12-14

Smith, Al Lawrence

Implements or apparatus for applying pushing or pulling force

Multiple lifters

254122, B66F 322

Patent

active

039971430

ABSTRACT:
In-place vehicle jack assemblies of the pivoted lever type to be permanently mounted at the front and rear of the vehicle frame structure, each of the jack assemblies comprising a unitary device which is independently operable by an electric motor, and independently selectively controlled at the jack or remotely from the control compartment of the vehicle, control circuits for the jack assemblies being interlocked with the ignition system of the engine, so that the jacks are operable only when the ignition switch is in an "off" position.

REFERENCES:
patent: 1393851 (1921-10-01), Thorndike
patent: 1714464 (1929-05-01), Merriman
patent: 1918783 (1933-07-01), Redding
patent: 1920216 (1933-08-01), Ramondette
patent: 2218733 (1940-10-01), Watts
patent: 2593024 (1952-04-01), Hall et al.
patent: 2747836 (1956-05-01), Sherman
patent: 3347523 (1967-10-01), Hankey et al.
patent: 3451655 (1969-06-01), Scott

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