Hydraulic reciprocating device

Details Hydraulic reciprocating device Hydraulic reciprocating device

1984-01-31

1985-04-23

Maslousky, Paul E.

Tool driving or impacting

Work cleansing

Cleansing fluid controlled by control for drive or advance...

173 75, 173102, 173135, 91 39, 91165, E21C 700, F15B 2102

Patent

active

045124175

ABSTRACT:
This invention pertains to a hydraulic reciprocating device having a housing and a piston in the housing. The piston has a first and second surface, and a means for intermittently communicating the first surface of the piston with a hydraulic pressure source. Also provided is a means for continuously communicating the second surface of the piston with pressurized fluid such as pneumatic fluid. The piston moves in a first direction when the hydraulic pressure source communicates with the first surface of the piston and the piston moves in a second direction when the hydraulic pressure source does not communicate with the first surface of the piston.

REFERENCES:
patent: 1126943 (1915-02-01), Bayles
patent: 1414224 (1922-04-01), Smith
patent: 3248879 (1966-05-01), Natho
patent: 3800664 (1974-04-01), Phillips
patent: 3925985 (1975-12-01), Peterson
patent: 4084646 (1978-04-01), Kurt
patent: 4103591 (1978-08-01), Reiersdal
patent: 4284147 (1981-08-01), Jenne
patent: 4295411 (1981-10-01), Grantmyre
patent: 4317406 (1982-03-01), Takahashi

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