The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 1991
Filed:
Sep. 08, 1988
Applicant:
Inventors:
Per J Jensen, Slangerup, DK;
Joergen M Berth, Kvistgaard, DK;
Assignee:
Raychem Corporation, Menlo Park, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
428349 ; 174D / ; 219535 ; 219549 ; 428 351 ;
Abstract
A tubular article comprises an electrically conductive polymeric material. The article increases in wall thickness on recovery. It can be used for example as a duct seal or as an internal coupler or seal for hollow conduits such as pipes. The article may have plain or convoluted walls.