Master cylinders for dual hydraulic braking systems

Details Master cylinders for dual hydraulic braking systems Master cylinders for dual hydraulic braking systems

1974-06-14

1976-03-30

Schwadron, Martin P.

Power plants

Pressure fluid source and motor

Pulsator

60562, F15B 700

Patent

active

039465632

ABSTRACT:
A master cylinder for a dual hydraulic braking system has two pistons arranged end-to-end in respective bore sections, each piston having sealing valves which close off communication between front and rear brake circuits and respective reservoirs when displaced by operation of a brake pedal to cause pressurization of respective compression chambers connected to the brake circuits. This invention provides two seals in the inner piston between the two compression chambers and an auxiliary chamber defined between these seals into which small quantities of brake fluid escape in the event of leakage from either compression chamber to give visual warning of such leakage.

REFERENCES:
patent: 2045024 (1936-06-01), Renken et al.
patent: 2230501 (1941-02-01), MacArthur
patent: 2394364 (1946-02-01), Christensen
patent: 3059435 (1962-10-01), Rusconi
patent: 3358446 (1967-12-01), Wortz
patent: 3387851 (1968-06-01), Cugini
patent: 3463554 (1969-08-01), Bueler
patent: 3501915 (1970-03-01), Harkett
patent: 3606486 (1971-09-01), Doerfler
patent: 3633367 (1972-01-01), Baldwin
patent: 3686864 (1972-08-01), Shutt

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