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. 15, 1996
Filed:
Apr. 24, 1995
Applicant:
Inventors:
Roberto Marzola, Ferrara, IT;
Gian L Rigosi, Ferrara, IT;
Assignee:
Montell North America Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; F16L / ;
U.S. Cl.
CPC ...
156 94 ; 2940211 ; 138 99 ; 156 98 ;
Abstract
Parts of coatings made of plastic material on metal pipes, that have either been removed or damaged, are repaired by using one or more segments of a hollow cylinder having an inside radius equal to the outside radius of the metal pipe and an outside radius equal to the sum of the outside radius of the metal pipe plus a length from 80% to 120% of the thickness of the coating, said hollow cylinder segments being made up of a polymer composition, preferably foamed, comprising (percentages by weight):