US 6,182,705 B2Granted

Flexible offshore pipeline with a bituminous thermal insulating layer

OwnerGlen R. Sumnerinventor

Life of this patent

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Abstract

An improved, cost-effective, insulated flexible pipeline that is insulated with a bituminous composition.

Claims3

Dependent claims

A pipeline made from flexible pipe comprising a plurality of layers wherein at least one of said layers is a thermally insulating layer comprising a bituminous composition, wherein the thermal resistance to heat transfer between said flexible pipe and the surroundings that is contributed by said at least one insulating layer comprising a bituminous composition is greater than the thermal resistance of a coating of a material with thermal conductivity of 0.12 BTU/hr*ft*° F. and that is ½ inch thick.

Dependencies are inferred from the claim text.

Facts

Application: 09/190,342Filed 12 Nov 1998 · continuation
Priority: 29 Aug 1994
Granted: 6 Feb 2001
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

F16L 59/14
Thermal insulation in general: arrangements for the insulation of pipes or pipe systems
F16L 59/143
Arrangements for the insulation of pipes or pipe systems: pre-insulated pipes
F16L 59/20
Adapted for joints: for non-disconnectable joints
F16L
Pipes

Family

Application08/297,059Parent of this continuation-in-part · filed 29 Aug 1994
Application08/394,184Parent of this continuation · filed 24 Feb 1995
Application08/520,711Parent of this continuation · filed 29 Aug 1995
US 5,871,034 AParent of this continuation
Application08/394,184Parent of this continuation-in-part
US 6,155,305 ARelated patent
US 6,182,705 B2This patent

From the US filing history. Foreign family members aren’t listed.

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