Master-cylinder for hydraulic booster

Details Master-cylinder for hydraulic booster Master-cylinder for hydraulic booster

1976-10-22

1978-07-11

Schwadron, Martin P.

Power plants

Pressure fluid source and motor

Pulsator

60589, 60592, B60T 1126, F15B 708

Patent

active

040993809

ABSTRACT:
The hydraulic master-cylinder of the invention is of the kind having a valve ring made of elastomeric material mounted on the head of a piston adjacent to the pressure chamber. The master-cylinder further includes a safety valve in the pressure chamber. The safety valve is guided on the piston head and is adapted to sealingly cooperate with both one face of the valve ring and a shoulder provided on the piston head. The safety valve is biased toward the valve ring by a spring abutting on a stop fixed relative to the piston.

REFERENCES:
patent: 2254937 (1941-09-01), Dick
patent: 2942423 (1960-06-01), Brand
patent: 3141303 (1964-07-01), Baldwin
patent: 3165896 (1965-01-01), Baldwin
patent: 3300973 (1967-01-01), Baldwin
patent: 3512361 (1970-05-01), McCaffery
patent: 3800541 (1974-04-01), Sindelar

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