Three way check valve

Details Three way check valve Three way check valve

1984-09-07

1986-08-12

Stoner, Jr., Bruce H.

Fluid-pressure and analogous brake systems

Flow retarder

Isolation valve

137112, 188151A, G05D 1100, B60T 1546

Patent

active

046052623

ABSTRACT:
A three way check valve for a vehicle fluid pressure braking system includes a housing having first, second and third inlet ports and an outlet port. A pair of shuttles are slidably mounted in the housing, and are responsive to variations in the fluid pressure at the first, second and third inlet ports to communicate the inlet port having the highest pressure level to the outlet port, and to terminate communication through the other inlet ports to prevent back-flowing from one inlet port to the other inlet port.

REFERENCES:
patent: 1359988 (1920-11-01), Hawsen
patent: 2335814 (1943-11-01), Stevenson
patent: 2366608 (1945-01-01), Freeman
patent: 3362633 (1968-01-01), Freeman
patent: 4187871 (1980-02-01), Hendrickson
patent: 4281677 (1981-08-01), Hoffman
patent: 4368752 (1983-01-01), Tamamori et al.
patent: 4397505 (1983-08-01), Linkner, Jr.
patent: 4467825 (1984-08-01), Boyd

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