Pipe joints or couplings – Packed – Wedge
Patent
1997-04-17
1998-12-22
Knight, Anthony
Pipe joints or couplings
Packed
Wedge
285348, 285369, F16L 1702
Patent
active
058510370
ABSTRACT:
A pipe coupling for sealing a leak location in a pipe or pipeline by compressing annular gasket members against the pipe or pipeline around the leak location comprises a tubular middle ring, a pair of annular followers, and a pair of annular elastomeric gasket positioners bonded to and protruding from respective followers and positioned so that when the coupling is placed in sealing position, the gasket positioners engage the annular gasket members and force the gasket members into sealing position between the tubular middle ring and the pipe or pipeline. Suitable annular gasket members include rubber O-rings. The gasket positioners may include a retaining ring to prevent outward extrusion of the gasket positioner from between the coupling and the pipe or pipeline.
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The Basic Principle of Dresser.RTM. Couplings, Technical publication, pp. 1, 4, and 5.
Grafel Gary
Knight Anthony
LandOfFree
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