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:
Sep. 09, 2003
Filed:
Aug. 22, 2002
Bernard Dewimille, Corbeil Essone, FR;
Jacques Jarrin, Nanterre, FR;
Fabrice Dal Maso, Rueil Malmaison, FR;
Institut Francais du Petrole, Rueil-Malmaison cedex, FR;
Abstract
The present invention relates to a method intended for heat insulation of a pipe ( ), comprising the following successive stages of depositing, on the outer surface of the pipe moving longitudinally, a thickness ( ) of an insulating material made of elastomer having an elastic type behavior, substantially without irreversible plastic deformation, forming at least one circumferential slot ( ) in the thickness of the material substantially orthogonally to the axis ( ) of the pipe, and coating the insulating material thickness with a sealed sheath. In a variant, the slot is machined in the thickness of the insulant. The invention further relates to a heat-insulated pipe.