Retaining seal and supporting screen system for drum centrifuge

Details Retaining seal and supporting screen system for drum centrifuge Retaining seal and supporting screen system for drum centrifuge

1990-05-14

1992-02-25

Dawson, Robert A.

Liquid purification or separation

With repair or assembling means

2103801, 210402, 210450, 277 25, 277184, 277185, 277205, 494 38, B01D 33067

Patent

active

050910841

ABSTRACT:
A filter apparatus has a drum rotatable about an axis and having a foraminous outer wall with an inner surface, a support screen lying directly on the inner surface, a filter mesh lying directly on the support screen, and a protective screen lying on the filter mesh and holding same against the support screen. The support screen and mesh are held in place by a retaining seal having at least two lips defining at least one recess snugly receiving the edges of the support screen and mesh with one the lips between the support screen and the drum inner surface. The protective screen lies on the other lip of the seal and presses the seal against the surface of the drum while clamping the edges in the recess.

REFERENCES:
patent: 1194275 (1916-08-01), Christianson
patent: 1581089 (1926-04-01), Roberts
patent: 1946500 (1933-01-01), Roberts
patent: 4104169 (1978-08-01), Muller et al.
patent: 4269711 (1981-05-01), Gerteis
patent: 4343700 (1982-08-01), Daubman et al.

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