Method of forming a fluid seal

Details Method of forming a fluid seal Method of forming a fluid seal

1988-02-03

1989-07-25

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

264276, 425DIG47, B29C 3904, B29C 3912

Patent

active

048511765

ABSTRACT:
A method for making fluid seals with a mold which includes an outside diameter surface on a fixed part and a seal flange support surface on another portion of the fixed part. A seal casing with a shouldered mounting flange having major and minor out side diameters and a radial flange is positioned in the fixed mold part. A movable mold member includes an upper, outer cylindrical surface for engaging the inside surface of the casing major diameter to form a flash barrier which moves during mold closure. Both the fixed mold part and the movable mold part include inwardly directed surfaces defining the mold cavity; the flange support is apertured for the elastomer to flow from the seal body-forming part of the cavity to the gasket-forming part of the cavity. The heel-forming cavity part lies between the lower part of the insides surface of the mold and the outer surface of the casing minor diameter.

REFERENCES:
patent: 3490139 (1970-01-01), McKinven, Jr.
patent: 3493645 (1970-02-01), Sanderson et al.
patent: 4406847 (1983-09-01), O'Neal et al.
patent: 4580962 (1986-04-01), Haas

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