Gasket with two concentric lips

Details Gasket with two concentric lips Gasket with two concentric lips

2006-08-08

2006-08-08

Pickard, Alison K. (Department: 3673)

Seal for a joint or juncture

Seal between relatively movable parts

Close proximity seal

C277S418000, C277S424000, C277S399000, C415S174200

Reexamination Certificate

active

07086649

ABSTRACT:
A gasket, sliding about the axis of rotation of a part to be brought closer to or to be spaced apart from another part with which it provides tightness through a pair of lips provided on a ring. The gasket includes a portion of the ring capable of bending to modify the clearance between the corresponding lip and the part, the pressure prevailing in an intermediate cavity, the balance of forces on the joint and hence the clearance and the leak flow rate allowed before the gasket, which is advantageous in particular in a case of ventilation gas for refrigerating an element of the machine in controlled operating conditions.

REFERENCES:
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patent: 3532399 (1970-10-01), Gray
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patent: 4375891 (1983-03-01), Pask
patent: 4817966 (1989-04-01), Borowski
patent: 5207560 (1993-05-01), Urban
patent: 5577887 (1996-11-01), Gouyon et al.
patent: 5609342 (1997-03-01), Peterson et al.
patent: 5743707 (1998-04-01), Battig et al.
patent: 5769604 (1998-06-01), Gardner et al.
patent: 6299173 (2001-10-01), Lai
patent: 6578849 (2003-06-01), Haje
patent: 2001/0006278 (2001-07-01), Haje
patent: 2 785 355 (2000-05-01), None

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