Oil seal ring of synthetic resin having angularly displaced inje

Details Oil seal ring of synthetic resin having angularly displaced inje Oil seal ring of synthetic resin having angularly displaced inje

1995-12-28

1997-05-13

Cummings, Scott

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

2643289, 26432812, F16J 900

Patent

active

056285191

ABSTRACT:
A seal ring having uniform dimensions and uniform composition over the entire length thereof. This is achieved by properly positioning the injection point for injecting a material when injection-molding the seal ring. More specifically, the injection point is angularly displaced from the center of the entire length of the seal ring by .+-.1.degree. to .+-.30.degree..

REFERENCES:
patent: 3906066 (1975-09-01), Barrie
patent: 4432925 (1984-02-01), Holtzberg et al.
patent: 4542054 (1985-09-01), Fillmann
patent: 4635944 (1987-01-01), Sabo
patent: 4747602 (1988-05-01), Kobayashi et al.
patent: 5087057 (1992-02-01), Kurkowski
patent: 5139724 (1992-08-01), Hofstetter et al.
patent: 5489631 (1996-02-01), Dubois

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