Implements or apparatus for applying pushing or pulling force – Multiple lifters
Patent
1977-08-25
1979-04-24
Watson, Robert C.
Implements or apparatus for applying pushing or pulling force
Multiple lifters
B66F 704
Patent
active
041508130
ABSTRACT:
A jack system for a land vehicle which includes a plurality of spaced jacks mounted to the vehicle and a hydraulic line connecting pistons included in the jacks to a pump so that, when through a control valve structure, fluid under pressure is delivered by the pump to the jacks, a portion will extend and engage the ground raising the vehicle; and reversal of the pump will lower the vehicle to the ground.
REFERENCES:
patent: 2683277 (1954-07-01), Bernaerts
patent: 2919106 (1959-12-01), Le Mieux et al.
patent: 3166298 (1965-01-01), DiStefano
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