Emergency portion for brake control valve

Details Emergency portion for brake control valve Emergency portion for brake control valve

1977-10-05

1978-11-14

Reger, Duane A.

Fluid-pressure and analogous brake systems

Automatic

Synchronizing

303 69, B60T 1530

Patent

active

041252934

ABSTRACT:
An upgraded railway freight car brake control valve device comprises a novel emergency valve portion that embodies therein a minimum number of simple and inexpensive poppet valves, one of which is a double seated valve, that replaces yet performs the same functions heretofore performed by more expensive slide type valves which slide valves, and the flat seats upon which they slide as they are shifted from one position to another, in their manufacture require a considerable amount of accurate machining thus increasing the cost of the valve device of which they are an important part.

REFERENCES:
patent: 2031213 (1936-02-01), Farmer
patent: 4045095 (1977-08-01), Temple

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