Brake valve

Fluid-pressure and analogous brake systems – Motorman's valves

Patent

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Details

251321, B60T 1700

Patent

active

041936418

ABSTRACT:
A brake valve device including a valve-actuating piston for contacting and effecting operation of a valve member, the valve-actuating piston being provided with a stepped bore in which a spring-biased spring seat member is engaged by and axially slidably movable by a push rod for actuating the valve device. The peripheral surface of a guide flange formed on the spring seat member for stabilizing axial movement thereof in the stepped bore, is spherically-shaped for permitting such axial movement without hang-up or jamming in the bore.

REFERENCES:
patent: 2259809 (1941-10-01), Freeman

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