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:
Oct. 22, 1991
Filed:
Feb. 23, 1989
Applicant:
Inventors:
Michael I Kapgan, Foster City, CA (US);
Richard H Kosarczuk, Fremont, CA (US);
Assignee:
Raychem Corporation, Menlo Park, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285382 ; 2853821 ; 29447 ; 29521 ;
Abstract
A technique for making a connection to an object, for example a tube, comprises positioning a shape memory alloy collar around the tube, the collar having two circumferentially extending teeth formed in its internal surface. One of the teeth is caused to bite into the external surface of the tube by heating the collar to cause it to shrink, using the shape memory properties of the alloy. The other tooth is caused to bite into the external surface of the tube by mechanically deforming the collar by drawing a tapered sleeve axially over it. Axial force can be applied to the tube through the collar.