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:
Jan. 23, 1979
Filed:
Jun. 16, 1975
Joseph H Evans, Palo Alto, CA (US);
Richard B Wolfe, Menlo Park, CA (US);
Raychem Corporation, Menlo Park, CA (US);
Abstract
A recoverable tubular article comprising an elastomeric sleeve held in a radially expanded or extended condition and capable of recovering to its pre-expanded condition of smaller diameter upon the removal of an outer restraint, an outer restraint, essentially tubular in configuration, bonded to said elastomeric sleeve, said bond between the sleeve and the restraint being sufficiently strong to retain the elastomeric sleeve in its expanded condition under ordinary conditions of storage and susceptible to attack by solvents weakening the bond sufficiently to allow the elastomeric sleeve to peel away from the restraint and recover to its original state. The article may be made by injection molding a rigid plastic material around an elastomeric sleeve, insuring that a suitable bond is formed between the sleeve and restraint, expanding said elastomeric sleeve when the plastic material is heated to softness and is formable and allowing the plastic material to cool and harden while the sleeve is held in the expanded state.