Two-circuit master cylinder unit for brakes

Details Two-circuit master cylinder unit for brakes Two-circuit master cylinder unit for brakes

1976-04-28

1978-03-07

Schwadron, Martin P.

Power plants

Pressure fluid source and motor

Pulsator

60545, 60562, 60591, 303113, 340 52C, F15B 700

Patent

active

040772179

ABSTRACT:
A two-circuit master cylinder unit for brakes includes first and second cylinders and first and second pistons slidably received in the first and second cylinders, respectively. The first piston is actuated by an external force for pressurizing hydraulic fluid in the first cylinder. The second piston is exposed to a pressure which depends upon the pressure generated in the first cylinder. A shackle device which couples the first and second pistons to one another, allows a relative axial displacement of predetermined magnitude between the first and second pistons. A switching device is operatively connected to the shackle device and is actuated when the predetermined magnitude of relative displacement between the pistons is reached. A warning device is operatively connected to the switching device and responds when the switching device is actuated.

REFERENCES:
patent: 2169524 (1939-08-01), Fowler
patent: 2732918 (1956-01-01), Hackworth
patent: 3060691 (1962-10-01), Davis
patent: 3412557 (1968-11-01), Williams
patent: 3526093 (1970-09-01), Kimura
patent: 3724910 (1973-04-01), Rossigno
patent: 3938333 (1976-02-01), Mathues
patent: 4004425 (1977-01-01), Pickering

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