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. 07, 1989
Filed:
Jun. 19, 1987
Applicant:
Inventors:
Assignee:
N.V. Raychem SA, , BE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428 351 ; 156 86 ; 156215 ; 156327 ; 428 57 ; 428 66 ; 428285 ; 428286 ; 428138 ; 428145 ; 428212 ; 428516 ;
Abstract
A heat-recoverable wrap-around sleeve for pipe protection, with a patch-type closure. The patch is heat-stable and comprises two polymeric layers bonded together through, for example, an open mesh glass-fibre fabric. No separate adhesive is required. The hot modulus of one of the layers is low enough to enable it to bond to the overlapping edges of the wrap-around sleeve, and the hot modulus of the other layer is high enough to withstand installation temperature. This new patch is easier to install and requires less materials than prior art patches, and does not need to be bonded to the sleeve in such a distinct heating step.