Emergency portion for brake control valve

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

1976-06-25

1977-08-30

Blix, Trygve M.

Fluid-pressure and analogous brake systems

Automatic

Synchronizing

303 39, 303 69, 303 82, B60T 1544

Patent

active

040450953

ABSTRACT:
An upgraded railway freight car brake control valve device comprises a novel emergency valve portion that embodies therein a plurality of simple and inexpensive poppet valves that replace yet perform 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: 3232678 (1966-02-01), Wilson
patent: 3407009 (1968-10-01), Racki
patent: 3706480 (1972-12-01), Washbourn
patent: 3731982 (1973-05-01), Paginton
patent: 3966269 (1976-06-01), McEathron
patent: 3967864 (1976-07-01), McEathron

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