System for conveying a fluid through an under-the-ground locatio

Details System for conveying a fluid through an under-the-ground locatio System for conveying a fluid through an under-the-ground locatio

1994-08-01

1995-12-26

Ricci, John A.

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

138111, 138113, 138173, F16L 1111

Patent

active

054781710

ABSTRACT:
A system for conveying a fluid through an under-the-ground location and method of making the same are provided, the system comprising a primary flexible conduit for conveying the fluid therethrough and having an outer peripheral surface and an inner peripheral surface, and an outer secondary conduit having at least a portion of the primary conduit removably disposed therein and having an inner peripheral surface and an outer peripheral surface that engages the ground in the under-the-ground location thereof, the secondary conduit having the inner peripheral surface thereof comprising a helically disposed and inwardly directed projection thereof that engages the outer peripheral surface of the primary conduit in a spiral manner and cooperates therewith to define a helically disposed passage that extends therebetween throughout substantially the entire engagement area thereof.

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Pamphlet A115, Advanced Polymer Technology, Inc., Elkhart, Ind., Mar. 1992.

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