Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1992-02-13
1993-05-25
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277207A, 285111, F16J 1510, F16J 1532
Patent
active
052133397
ABSTRACT:
A method for assembling a pipe joint including an inner pipe having an outside surface and an outer pipe having an annular groove for receiving a gasket and a pipe joint gasket used in that method. The gasket includes front and back regions, the front region being resilient and relatively rigid, the back region being softer and more resilient than the front region. An interior tip of the back region sealingly engages the inner pipe outside surface and spaces the inner pipe from the front region while the inner pipe is being inserted. The exterior tip of the back region in cooperation with the front and back regions, both secures and seals the front and back regions to the annular groove before inserting the inner pipe. The gasket is displaced by the inserted inner pipe which exerts pressure on both pipes thus sealing the annulus between the pipes. The gasket is further displaced by internal pipe pressure or external pressure which exerts proportionally greater sealing force on both pipes.
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Cuchlinski Jr. William A.
Cummings Scott
Reeves Rubber, Inc.
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