Trackside door closing device for railway hopper cars

Details Trackside door closing device for railway hopper cars Trackside door closing device for railway hopper cars

1992-09-14

1994-04-12

Le, Mark T.

Material or article handling

Load-transporting type vehicle and external means...

Involving movement of load by gravity from wheeled vehicle

B61D 730

Patent

active

053020723

ABSTRACT:
A trackside device for closing hopper doors (14) has an eccentrically rotatable wheel (18). The wheel (18) rotates upon contacting a hopper door (14) to move it inward to a closed position. In a preferred embodiment, two devices are positioned on opposite sides of a railroad track to simultaneously close doors (14) on both sides of the hopper car.

REFERENCES:
patent: 2451406 (1948-10-01), Pancake
patent: 2686605 (1954-08-01), Kepner
patent: 3606042 (1971-09-01), Schuller
patent: 3891101 (1975-06-01), Peterson
patent: 4011956 (1977-03-01), Green et al.
patent: 4062460 (1977-12-01), Adler
patent: 4120412 (1978-10-01), Miller et al.
patent: 4213725 (1980-07-01), Knippel
patent: 4358238 (1982-11-01), Ely
patent: 4754710 (1988-07-01), Kieres

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