Molded lip seal with polytetrafluoroethylene liner and method fo

Details Molded lip seal with polytetrafluoroethylene liner and method fo Molded lip seal with polytetrafluoroethylene liner and method fo

1976-12-01

1979-10-23

Smith, Robert J.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

264275, 277153, B22D 1900

Patent

active

041715616

ABSTRACT:
A shaft seal (and method for making the same) of the type having an annular elastomeric body, a molded lip, and the molded lip having a liner of sintered polytetrafluoroethylene bonded thereto. The elastomer is molded simultaneously with the polytetrafluoroethylene liner being formed and bonded to the elastomer. The method for making the seal employs the same mold used to make common, molded lip elastomeric seals.

REFERENCES:
patent: 2804324 (1957-08-01), Stallings
patent: 3276115 (1966-10-01), Hansz
patent: 3462333 (1969-08-01), McCormick et al.
patent: 3493645 (1970-02-01), Sanderson et al.
patent: 3806398 (1974-04-01), Lasser
patent: 3972975 (1976-08-01), Noda
patent: 3973781 (1976-08-01), Grorich

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