Sealing material

Details Sealing material Sealing material

2007-03-27

2007-03-27

Pickard, Alison K. (Department: 3673)

Seal for a joint or juncture

Seal between relatively movable parts

Piston ring or piston ring expander or seat therefor

C277S567000, C277S589000, C277S647000

Reexamination Certificate

active

11061664

ABSTRACT:
A sealing material for sealing liquid composed of a seal main body of resin, having a U-shaped cross section and a concave groove opening to an axis direction, and an O-ring of rubber fit to the concave groove of the seal main body used for medical appliances and paint appliances. The seal main body is provided with an end lip portion on a side along the axis direction and a main lip portion on a middle position of the axis direction on a sliding face side, and, in a pressure-receiving state in which pressure works on the side along the axis direction and the O-ring is compressed, a dimension of the axis direction from a base end face of the seal main body on other side along the axis to a cross-section central point of the O-ring and another dimension of the axis direction from the base end face to an end portion of the main lip portion are set to be approximately equal.

REFERENCES:
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patent: 6883804 (2005-04-01), Cobb
patent: 5-47624 (1993-06-01), None
patent: 8-82372 (1996-03-01), None
patent: 2003-247646 (2003-09-01), None

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