Rotary cartridge seals with retainer

Details Rotary cartridge seals with retainer Rotary cartridge seals with retainer

1998-03-09

2000-04-18

Mah, Chuck Y.

Seal for a joint or juncture

Seal between relatively movable parts

Circumferential contact seal for other than piston

277572, F16J 1532

Patent

active

060505729

ABSTRACT:
A rotary cartridge seal is provided which includes a cold flowable plastic ring having a body for sealably engaging the housing bore and a lip for sealably engaging a shaft rotating within the housing bore. A separable metal retainer is provided for fixing the plastic ring within the housing bore and around the shaft with the separable metal retainer having a surface of revolution with a rear portion having a radius suitable for press fitting into the housing bore and a front portion of lesser diameter ending therein. An internal groove is provided into the plastic ring body for engaging the ring therein in order to latch the plastic ring and the metal retainer together with residual stress in both the axial and radial directions within the plastic ring due to groove and ring dimensions and shape.

REFERENCES:
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patent: 3037781 (1962-06-01), Peras
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patent: 3829106 (1974-08-01), Wheelock
patent: 4053166 (1977-10-01), Domkowski
patent: 4240643 (1980-12-01), Becker et al.
patent: 4335887 (1982-06-01), Benassi
patent: 5062648 (1991-11-01), Gomringer
patent: 5490731 (1996-02-01), Scharf et al.
patent: 5797602 (1998-08-01), Less
patent: 5813676 (1998-09-01), Antonini et al.
patent: 5855375 (1999-01-01), Wilcox et al.

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