Railway hopper car sliding gate sealing mechanism

Details Railway hopper car sliding gate sealing mechanism Railway hopper car sliding gate sealing mechanism

1989-07-26

1991-04-09

Graham, Matthew C.

Railway rolling stock

Special car bodies

Dumping

49485, 49493, B61D 722

Patent

active

050054902

ABSTRACT:
a seal mechanism for installation in the discharge opening of a railway hopper car. The design of the seal mechanism, the type of material used and the degree of securement of the discharge opening combine to provide a semi-flexible structure. Irregularities in the structure of the discharge opening and/or the slide gate can be overcome by the flexible portions of the seal mechanism. The actual sealing is done by a pliable seal material carried in a channel. The pliable seal comprises several separate sections and the channel includes cutouts for their individual removal and insertion.

REFERENCES:
patent: 2360276 (1944-10-01), Redmond
patent: 2608728 (1952-09-01), Montgomery
patent: 3224382 (1965-12-01), Floehr
patent: 3255714 (1966-06-01), Dorey
patent: 3385232 (1968-05-01), Dorey
patent: 3827374 (1974-08-01), Winsor
patent: 4253400 (1981-03-01), Fischer et al.
patent: 4344365 (1982-08-01), Fritz et al.
patent: 4429921 (1984-02-01), Fritz et al.

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