Sealing device for polymer filtration apparatus

Details Sealing device for polymer filtration apparatus Sealing device for polymer filtration apparatus

1993-10-13

1996-04-16

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

210352, 210398, 264169, 425190, 425199, 277119, 277122, 277143, 277216, F16J 900, F16J 1500, F21B 3300

Patent

active

055074987

ABSTRACT:
A sealing device for sealing a slide plate translatable across an extrusion bore in a polymer filtration apparatus includes an annular seal having a sealing surface which is biased against the slide plate by an annular spring. The seal has a thrust surface which is angled relative to the sealing surface and is located at an opposite axial end of the seal from the sealing surface. The annular spring exerts radial forces against the thrust surface of the seal to bias the seal in an axial direction against the slide plate. Pressurized polymer in the extrusion bore further biases the seal against the slide plate.

REFERENCES:
patent: 3962092 (1976-06-01), Newman, Jr.
patent: 4059525 (1977-11-01), Krasnow
patent: 4359387 (1982-11-01), Trott
patent: 4470607 (1984-09-01), Schier et al.
patent: 5380018 (1995-01-01), Mader et al.
"Beringer Self-Lock Screen Changer", brochure from Beringer Co. (1989, Jan.).
"Slide Plate Screen Changers--Understanding Screen Changers, a Buyer's Manual," The Berlyn Corp. (1976).

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