Power plants – Pressure fluid source and motor – Pulsator
Patent
1978-06-07
1979-05-08
Schwadron, Martin P.
Power plants
Pressure fluid source and motor
Pulsator
60589, 60592, 251325, B60T 1120
Patent
active
041528972
ABSTRACT:
A brake master cylinder contains a primary and a secondary piston each having an associated brake fluid reservoir and compensator valve. Normally, the primary piston is actuated directly by mechanical force and the secondary piston is actuated by fluid pressure acting on it from the primary cylinder. If brake fluid pressure fails in either primary or secondary piston regions, the unfailed piston thereupon responds directly to mechanical actuating forces to produce normal brake fluid pressure in its associated wheel cylinders without interference from the failed piston.
Compensator valves, external to the cylinders enable brake fluid replenishment without requiring additional cylinder length.
REFERENCES:
patent: 2000187 (1935-05-01), Oliver
patent: 2657537 (1953-11-01), Oakley
patent: 3818706 (1974-06-01), Gaiser
Hershkovitz Abraham
Schwadron Martin P.
Wagner Electric Corporation
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