Pipes and tubular conduits – Flexible – Spirally wound material
Patent
1995-11-08
1999-02-02
Brinson, Patrick F.
Pipes and tubular conduits
Flexible
Spirally wound material
138113, 138114, 138127, 138124, 138137, F16L 1100
Patent
active
058652167
ABSTRACT:
A system for housing secondarily contained flexible piping comprises a flexible conduit resistant to mechanical stresses, the conduit adapted to surround the secondarily contained flexible piping. The conduit comprises a metallic core and a thermoplastic jacket. The secondarily contained flexible piping comprises an inner supply pipe, wherein the inner pipe is comprised of a first, inner layer fabricated from nylon, a second, intermediate layer comprising a nylon reinforced wrap, and a third, outer layer comprising a polyethylene material, the nylon inner material, the nylon wrap and the polyethylene outer layer being extruded simultaneously to form the inner pipe. The secondarily contained flexible piping further comprises a flexible outer secondary containment pipe within which the inner supply pipe is carried, the outer pipe being fabricated from a fuel impervious material and having a plurality of radially projecting flanges disposed between the inner supply pipe and the outer secondary containment pipe, to provide a locking engagement of the pipes with respect to each other and to provide for a flow passage between the pipes.
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Advanced Polymer Technology, Inc.
Brinson Patrick F.
LandOfFree
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