Multiple pump transmission jack

Details Multiple pump transmission jack Multiple pump transmission jack

1998-05-29

1999-11-02

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Hoisting truck

Platform type

60486, B60P 100

Patent

active

059754966

ABSTRACT:
The present invention is a multiple pump transmission jack for use with removing and repairing transmissions. The jack has two hydraulic pumps mounted on a base which are connected with interrelated oil passages or conduits formed within the base, which is operated by a pedal connected with the two pumps for drawing hydraulic oil from a reservoir and into an oil pressure cylinder to easily and quickly raise a piston rod within the oil pressure cylinder saving the operator's effort and increasing the efficiency of operation. The jack also includes an overload system that prevents the operator from placing a load on the jack which is greater than its rated load, thus preventing danger.

REFERENCES:
patent: 2549862 (1951-04-01), Thorndike
patent: 2654568 (1953-10-01), Pine
patent: 2664073 (1953-12-01), Pine
patent: 3121556 (1964-02-01), Faulkner
patent: 4865293 (1989-09-01), Ishi et al.
patent: 4867416 (1989-09-01), Garrett et al
patent: 5156375 (1992-10-01), Liegel et al.
Product Catalog entitled: "Norco Professional Lifting Equipment"; dated Oct., 1997; published by Norco industries, Inc., Compton CA; front cover, p. 15 and back cover.

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