Remote control positioning system for controlling hopper doors

Details Remote control positioning system for controlling hopper doors Remote control positioning system for controlling hopper doors

1993-08-27

1994-11-01

Le, Mark T.

Railway rolling stock

Special car bodies

Dumping

1052412, 222504, 298 35M, B65D 4700

Patent

active

053599420

ABSTRACT:
A positioning system for remote operation of hopper doors of a railway car is provided including a radio frequency controller and a hydraulic drive system. The positioning system for each hopper car is supplied with pneumatic power from the locomotive. Pneumatic power is converted to electric power for the controller and hydraulic power for the door drives. The electrical power is a 12 volt DC system provide by a standard battery, which is charged by an alternator driven by an air motor. An air operated hydraulic pump is also connected to the pneumatic power source to supply hydraulic pressure to a valve manifold connected to a series of solenoid operated hydraulic valves. The solenoid operated hydraulic valves are, in turn, connected to hydraulic cylinders which operate doors on railway hopper/ballast or other type cars. The controller includes a receiver for receiving signals from a remote transmitter and operator station. The controller processes the signals and transmits control signals to the solenoid control valve, which causes the cylinders to open or close the desired door.

REFERENCES:
patent: 3173381 (1965-03-01), Charles et al.
patent: 3433373 (1969-03-01), Carey et al.
patent: 3446373 (1969-05-01), Keister et al.
patent: 3596565 (1971-08-01), Atkinson
patent: 5261333 (1993-11-01), Miller
patent: 5311822 (1994-05-01), Bounds

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