Thermal insulation device of a screwed junction

Details Thermal insulation device of a screwed junction Thermal insulation device of a screwed junction

2008-10-03

2011-11-22

Bochna, David E (Department: 3679)

Pipe joints or couplings

Having plural independent paths

For concentric tubes or pipes

C285S048000, C285S123150

Reexamination Certificate

active

08061739

ABSTRACT:
A thermal insulation device of a screwed junction between two sections of pipe comprising an outer pipe surrounding an inner pipe between which thermal insulation material is positioned, the inner pipes being assembled together by the screwed junction, one section delimiting a male portion and the other delimiting a female portion, the portions being fitted together to delimit the screwed junction, wherein the male portion comprises the inner pipe and a tubular part connected thereto, the diameter of the tubular part being less than that of the outer pipe, and wherein the female portion comprises a part of the outer pipe and an intermediate tubular part connecting the inner pipe to the outer pipe, the inner diameter of the intermediate part being greater than the outer diameter of the tubular part of the male portion, the thermally insulating material being inserted between the outer pipe and the intermediate part.

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