Pipes and tubular conduits – Distinct layers – Bonded to each other
Patent
1996-09-20
1998-06-16
Scherbel, David
Pipes and tubular conduits
Distinct layers
Bonded to each other
138 99, 138125, F16L 914
Patent
active
057656002
ABSTRACT:
Methods for producing improved pipe structures for natural gas distribution pipelines produce a thin fibrous jacket or layer which can inhibit and prevent cracks in natural gas distribution piping by preventing surface scratches as well as by enhancing the pipe strength. Thermoplastic fibers are preferred in accordance with methods and structures of the present invention to facilitate the use of joining techniques and hot-tapping techniques common in the natural gas distribution industry. Non-woven, heat shrinkable fibers are also employed in sleeve structures to produce a protective fibrous jacket or layer.
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Cassady Michael J.
Hattery Gary R.
Lipinsky Edward S.
Newaz Golam M.
Gas Research Institute
Hook James F.
Scherbel David
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