Hydraulic jack

Details Hydraulic jack Hydraulic jack

1986-06-12

1987-02-10

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Fluid pressure

Vehicle attached

B66F 324

Patent

active

046418156

ABSTRACT:
A hydraulic jack includes a pump, a high pressure chamber, a low pressure chamber and a passage with a one-way valve communicating the high pressure chamber and the low pressure chamber. When a load is encountered, the high pressure chamber and the low pressure chamber are connected immediately through the passage through which the pump feeds the low pressure chamber to lift the load.

REFERENCES:
patent: 3449910 (1969-06-01), Reynolds
patent: 3782689 (1974-01-01), Barosko
patent: 4357798 (1982-11-01), Hung

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