Apparatus for sealing a center valve vacuum filter

Details Apparatus for sealing a center valve vacuum filter Apparatus for sealing a center valve vacuum filter

1991-12-06

1993-03-16

Hruskoci, Peter

Liquid purification or separation

Filter

Movable medium

210404, 210406, 210429, 277 29, B01D 33067

Patent

active

051941538

ABSTRACT:
A seal for a rotating center valve vacuum filter drum has a non-flat cross section with an elastomeric core and a chemical resistant sheathing. The seal is installed under tension so that, as wear occurs during operation, positive sealing contact is maintained. The non-flat cross section provides a nesting relationship with the center valve slot and stationary shoe to resist any tendency to wander out of the slot.

REFERENCES:
patent: 2615575 (1952-10-01), Wright
patent: 3356224 (1967-12-01), Orr
patent: 3517818 (1970-06-01), Luthi
patent: 3667614 (1972-06-01), Komline
patent: 3918821 (1975-11-01), Schlegel et al.
patent: 4154687 (1979-05-01), LaValley
patent: 4370231 (1983-01-01), LaValley
patent: 4795572 (1989-01-01), LaValley
patent: 4821536 (1989-04-01), Bardsley
patent: 4973407 (1990-11-01), Wagner

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