Hydraulic force multiplying device

Details Hydraulic force multiplying device Hydraulic force multiplying device

1980-04-11

1983-01-04

Maslousky, Paul E.

Motors: expansible chamber type

Constantly applied motive fluid with controlled venting

Fluid vented through working member

91372, 91431, 92129, F15B 910, F16J 110

Patent

active

043667422

ABSTRACT:
A hydraulic force multiplying device comprising a main body having inlet and outlet ports, input and output rods with one ends thereof being slidably connected with one another in the main body, an annular piston slidably engaging with the inner circumference of the main body and the outer circumference of the input rod and being associated with the output rod, two liquid chambers partitioned by the piston and connected respectively to the inlet and outlet ports, a connecting passage connecting the two liquid chambers, a valve mechanism provided between the input rod and the output rod for controlling the liquid flow passing through the connecting passage, and a by-pass passage provided between the piston and the input rod for connecting the two liquid chambers in the non-actuated condition of the device.

REFERENCES:
patent: 3327590 (1967-06-01), Johnson
patent: 3402592 (1968-09-01), Machon et al.
patent: 3444784 (1969-05-01), Wengerd
patent: 4135435 (1979-01-01), Adachi
patent: 4179980 (1979-12-01), Kito et al.

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