Pipe joints or couplings – With fluid pressure seal – With separate – encased pipe-gripping means
Patent
1996-09-10
1997-11-04
Arola, Dave W.
Pipe joints or couplings
With fluid pressure seal
With separate, encased pipe-gripping means
285267, 285910, F16L 27053
Patent
active
056831196
ABSTRACT:
A joint seal has a through bore and two spherical spaced convex surfaces which mate with respective concave spherical surfaces on a pair of adjacent flanges. The flanges are welded to and about the periphery of corresponding spaced pipes one of which is inserted in the bore of the seal. The flanges are joined by two bolts, one flange being fixedly secured to the bolts and the other resiliently movably secured to the bolts by a pair of springs to permit that other flange to rotate in response to rotation of the pipe affixed thereto. The one flange forms a static wedge-like seal joint with one of the pipes and the other flange a dynamic seal joint with the respective seal spherical surfaces, the spherical seal and flange surfaces being urged together in wedged relation by the springs.
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D'Arcangelis Stephen
Emmons Kurry Brian
Warner Brian James
Zhang Jane
Arola Dave W.
Metex Corporation
Squire William
LandOfFree
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