Hydraulic cylinder with power-multiplication

Details Hydraulic cylinder with power-multiplication Hydraulic cylinder with power-multiplication

1985-05-10

1986-11-04

Garrett, Robert E.

Power plants

Pressure fluid source and motor

Pulsator

60563, 60583, 60593, F15B 700

Patent

active

046204199

ABSTRACT:
A hydraulic cylinder device for power multiplication includes a cylinder (1) containing a single-stage piston (2) having a piston rod (4) and a two-stage secondary piston (3), the piston rod (4) extending through a bore in the secondary piston. The cylinder (1) is closed by a cylinder cover (16) through which the piston rod (4) also extends. Two stop-pistons (22, 24) with different strength springs (21, 23) are located in projection (20) integral with cylinder (1) and opposite the stop-pistons are two opening-pistons (33, 34).

REFERENCES:
patent: 615912 (1898-12-01), Sackett
patent: 3186173 (1965-06-01), Hogg
patent: 3473328 (1969-10-01), Mayhew
patent: 4153180 (1979-05-01), Fernique
patent: 4288987 (1981-09-01), Grullmeier

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