Pipe joints or couplings – With casing – lining or protector – Lined
Patent
1992-09-25
1994-01-11
Nicholson, Eric K.
Pipe joints or couplings
With casing, lining or protector
Lined
285363, 285368, 285138, 285 93, 285910, 29451, 73 46, 73 491, F16L 914
Patent
active
052774554
ABSTRACT:
Methods and apparatus for improved containment, detection, and monitoring of leaks of piped substances in which piping systems are constructed of connections of flanged, plastic-lined concentric pipe segments, these segments each having an inner and outer shell with an annulus therebetween and an aperture connecting the annulus with the exterior flange face of the pipe segment. A connector is described which may be placed between pipe segments to be connected and which has annular resilient sealing members and inner plastic seals to provide seals at the connection. The piping system provides an annular containment passageway to capture fluid escaping from the inner shell of a pipe segment and communicate the fluid to a fluid detection port in the connector. The annular containment passageway comprises at least one pipe segment annulus, at least one aperture in the pipe segment, and an annular fluid opening at the connector to communicate fluid toward the fluid detection port.
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Graves Gail W.
Schulte-Ladbeck Bernd
Nicholson Eric K.
Performance Plastics Products, Inc.
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