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:
Dec. 27, 1988
Filed:
Dec. 16, 1987
Applicant:
Inventor:
Laszlo Szalvay, San Carlos, CA (US);
Assignee:
Raychem Corporation, Menlo Park, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138 98 ; 138 97 ; 29447 ; 29523 ; 2940209 ;
Abstract
An assembly for securing a repair sleeve within a damaged pipe, comprising a tubular repair sleeve, and a shape memory alloy element positioned within the sleeve and having a mandrel on each end with at least a portion of each mandrel extending beyond the sleeve at a respective end of the sleeve, arranged so that when the shape memory alloy element recovers, the mandrels are moved towards one another so that each end portion of the sleeve is caused to expand outwardly.