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:
Apr. 22, 2003
Filed:
Apr. 24, 2002
Applicant:
Inventor:
Pierre Odru, Fontenay sous Bois, FR;
Assignee:
Institut Francais du Petrole, Rueil Malmaison cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 1/100 ;
U.S. Cl.
CPC ...
F16L 1/100 ;
Abstract
A structure of a multilayer tube includes at least one layer made of a composite material ( ) having reinforcing fibers embedded in a polymer matrix, and at least one sealing sheath ( ) made of a low-permeability polymer material. The tube has a metal carcass ( ) interior to the sheath. In a variant, the carcass is made of stapled steel tape ( ).