Seal for railroad car hopper doors

Details Seal for railroad car hopper doors Seal for railroad car hopper doors

1979-04-23

1980-07-29

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 56, 277205, 277209, 49401, 49483, 105247, 105282A, F16J 1510

Patent

active

042147590

ABSTRACT:
A sealing means for doors of a railroad hopper car and an apparatus and method for forming a sealing strip. The sealing means comprises a preformed strip of RTV silicone rubber fixed to the door at its edges and receiving a flange on the door frame. Preferably the strip is formed by extruding RTV silicone rubber from a traversing head onto a screen.

REFERENCES:
patent: 2355859 (1944-08-01), Hankins
patent: 2506259 (1950-05-01), Wine
patent: 2766022 (1956-10-01), Bender
patent: 4077389 (1978-05-01), Vogel
patent: 4112852 (1978-09-01), Koranda
patent: 4130966 (1978-12-01), Kujawa et al.

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