Patent · US Expired

Joint between an unrefrigerated pipe and a refrigerated pipe

US5732981A · kind A · utility

6Cited by

2References

6Claims

0Family size

Assignee

Deutsche Babcock-Borsig Aktiengesellschaft · DE

Inventors

Peter Brucher · Oranienburg, DE
Dieter Bormann · Kelkheim, DE
Rainer Heinze · Berlin, DE

Key dates

Filing date	Jun 19, 1996
Grant date	Mar 31, 1998
Priority date	—
Expiry date	Jun 19, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S285/905
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A joint between a hot and unrefrigerated pipe (1) and a refrigerated pipe (2). The end of the unrefrigerated pipe is bifurcated in cross-section, leaving two sections joined at one end. The exterior section (6) is fastened tight to the refrigerated pipe (2). The interior section (5) extends into the refrigerated pipe leaving a radial and axial gap. The cylindrical space between the interior and the exterior section is full of heat insulation. There is a flexible component, an O ring (13) for instance, between, and resting tight against, the face of the refrigerated pipe and that of the interior section of the unrefrigerated pipe. The insulation comprises an axial series of layers (10, 11, & 12), each with a different heat conductivity.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.