Tappet valve assembly for automatic railway vehicle couplers

Details Tappet valve assembly for automatic railway vehicle couplers Tappet valve assembly for automatic railway vehicle couplers

1992-06-30

1993-09-07

Look, Edward K.

Power plants

Pressure fluid source and motor

60721, 91508, 91444, 213 75R, F16D 3100

Patent

active

052418197

ABSTRACT:
A tappet valve arrangement for a railway car coupler having a main valve for supplying air pressure from one railway car to another coupled railway car. A piston and cylinder valve for supplying air pressure to a coupler centering device when the railway is in an uncoupled state and for interrupting the flow of air to the coupler centering device when the railway car is in a coupled state. A negating spool valve for overriding the flow of air to the coupler centering device when the railway car is in an uncoupled state. A shut-off valve for interrupting the supply of air from one railway car to another railway car when it is desired to uncouple the railway cars.

REFERENCES:
patent: 2161216 (1939-06-01), Wood
patent: 4033233 (1977-07-01), Toi
patent: 4246832 (1981-01-01), Hofer et al.
patent: 4920861 (1990-05-01), Lorimor
patent: 5014596 (1991-05-01), Martin
patent: 5067389 (1991-11-01), Germain

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