Method and mold for making a dual-lip shaft seal with one spring

Details Method and mold for making a dual-lip shaft seal with one spring Method and mold for making a dual-lip shaft seal with one spring

1984-04-11

1986-04-01

Czaja, Donald

Metal working

Method of mechanical manufacture

Assembling or joining

295271, 264277, 2643282, 425124, B29C 4502

Patent

active

045788561

ABSTRACT:
A dual-lip shaft seal with two PTFE sealing members bonded to a molded elastomeric body, and a method and mold for its manufacture includes an elastomeric body bonded to the radial flange of a metal case and provides (1) a shaped lip with a garter spring held in a recess and, bonded to its other side, a frustoconical PTFE ring providing its sealing lip portion and (2) an inflexible portion bonded to a radially extending PTFE wafer.

REFERENCES:
patent: 2968498 (1961-01-01), Saunders
patent: 3391940 (1968-07-01), Baugh
patent: 3443845 (1969-05-01), Walchle et al.
patent: 3490099 (1970-01-01), Smith et al.
patent: 3495843 (1970-02-01), Andersen et al.
patent: 4126320 (1978-11-01), Pendelton
patent: 4159298 (1979-06-01), Bainard
patent: 4171561 (1979-10-01), Bainard et al.
patent: 4239243 (1980-12-01), Bainard et al.
patent: 4306729 (1981-12-01), Hiramatsu et al.

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