Composite conduit for carrying fuel oil

Details Composite conduit for carrying fuel oil Composite conduit for carrying fuel oil

1999-01-29

2000-10-24

Hook, James

Pipes and tubular conduits

Flexible

Distinct layers

138143, 138DIG1, 138DIG6, 138DIG7, 427160, 2642094, F16L 1114

Patent

active

061351598

ABSTRACT:
An elongate deformable conduit and method of fabrication thereof adapted for the subterranean conveying of petroleum products and petrochemicals has an inner copper tube to which is bonded an outer layer of flexible polyvinyl chloride up to about one-third inch in radial wall thickness. In a preferred embodiment the polyvinyl chloride contains an ultraviolet stabilizer and is extruded in a wall thickness up to about one-tenth inch about the copper tube, and the copper tube has an outside diameter ranging up to about two inches and is sized to convey heating oil substantially below ground.

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patent: 3570545 (1971-03-01), Benteler
patent: 4071048 (1978-01-01), Watase

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