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Patent Searching and Data


Title:
PIPE SECTION JOINING
Document Type and Number:
WIPO Patent Application WO/2011/060167
Kind Code:
A3
Abstract:
Methods of joining pipe section and joined pipe assemblies are described. The pipe sections, e.g., pipes and couplers, are joined by a mechanical interference bond formed using a shape memory polymer key. The key can be inserted into a first keyway of one pipe section, the pipes fitted to align first keyway with a second keyway of the second pipe section, and the shape memory polymer activated to at least partially fill both keyways.

Inventors:
RULE JOSEPH D (US)
KROPP MICHAEL A (US)
LEWANDOWSKI KEVIN M (US)
Application Number:
PCT/US2010/056377
Publication Date:
September 22, 2011
Filing Date:
November 11, 2010
Export Citation:
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Assignee:
3M INNOVATIVE PROPERTIES CO (US)
RULE JOSEPH D (US)
KROPP MICHAEL A (US)
LEWANDOWSKI KEVIN M (US)
International Classes:
F16L21/02; F16L37/14; F16L47/20
Foreign References:
KR910004768Y11991-07-04
JPH05133488A1993-05-28
KR19990085577A1999-12-06
JPH1061857A1998-03-06
KR20030066472A2003-08-09
Other References:
See also references of EP 2501976A4
Attorney, Agent or Firm:
SPIELBAUER, Thomas, M. et al. (Office of Intellectual Property CounselPost Office Box 3342, Saint Paul Minnesota, US)
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