Power plants – Pressure fluid source and motor – Pulsator
Patent
1976-09-20
1978-09-26
Schwadron, Martin P.
Power plants
Pressure fluid source and motor
Pulsator
60544, 60583, 60584, 60586, 60594, F15B 702
Patent
active
041160045
ABSTRACT:
Hydraulic pulse generating apparatus for actuating one or more slave motors, comprises at least one hydraulic master cylinder, which in use is connected to a slave motor by flexible tubing or otherwise.
The master cylinder is fitted with a reciprocating plunger which is operated by power actuated driving means, and the cylinder communicates with a hydraulic fluid reservoir which is maintained at a pressure intermediate the maximum and minimum pressures produced in the cylinder by operation of the plunger.
Manual control means are provided, to prevent the transmission of pressure pulses to the motor while the power actuated driving means continues to operate and for this purpose the master cylinder preferably communicates with a transfer chamber, the volumetric capacity of which is variable by operation of the manual control means.
Means are also provided whereby, when the capacity of the transfer chamber is thus increased beyond its normal capacity, the further inflow of fluid from the reservoir is prevented.
REFERENCES:
patent: 2168806 (1939-08-01), Reilly
patent: 2246348 (1941-06-01), Coffey
patent: 2323770 (1943-07-01), Hazelton
patent: 2645138 (1953-07-01), Mitchhart
patent: 2882686 (1959-04-01), Griffith
patent: 3137369 (1964-06-01), Stromberg
patent: 3286465 (1966-11-01), Cerles
patent: 3863681 (1975-02-01), Dostal
patent: 3930434 (1976-01-01), Hunter
Hershkovitz Abraham
Schwadron Martin P.
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