Method of manufacturing sealing apparatus and mold

Details Method of manufacturing sealing apparatus and mold Method of manufacturing sealing apparatus and mold

1989-08-04

1992-04-14

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264263, 264266, 264268, 425DIG47, B29C 4318

Patent

active

051046032

ABSTRACT:
A method of manufacturing a sealing apparatus. A rubber-like elastic material for forming a rubber-like elastic material sealing lip and a resin material for forming a resin sealing lip are placed within a mold for manufacturing a sealing apparatus by effecting vulcanization forming. The mold is clamped with contents placed therein, and the contents are pressurized and heated. During this process, a surface of the resin material is pressed by the forming pressure of the fluidized rubber-like elastic material against a thread formed on an inner wall surface the mold, thereby forming a thread groove on that surface of the resin material pressed against the thread.

REFERENCES:
patent: 4038359 (1977-07-01), Pendleton
patent: 4171561 (1979-10-01), Bainard et al.
patent: 4406847 (1983-09-01), O'Neal et al.
patent: 4464322 (1984-08-01), Butler
patent: 4578856 (1986-04-01), Butler
patent: 4723350 (1988-02-01), Kobayashi et al.

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