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:
Jun. 25, 2002
Filed:
Aug. 16, 2000
Patrice Jung, Hameau de Caveaumont, FR;
José Mallen Herrero, Paris, FR;
Jean-Marc Leroy, Rueil Malmaison, FR;
Xavier Longaygue, Noisy le Grand, FR;
Other;
Abstract
The present invention relates to a flexible tubular pipe for carrying fluids under pressure containing H S and to a method for designing such a flexible pipe. The pipe includes a body ( ), an internal sealing sheath ( ), at least one steel armouring layer ( ) withstanding the stresses induced by the inside/outside pressure difference, and at least one traction-resisting steel armouring layer ( ) spirally wound at an angle less than 45° in relation to the axis of the pipe. In this pipe, at least the armouring layer withstanding the stresses induced by the inside/outside pressure difference is made of a determined steel meeting H S resistance criteria, and at least the traction-resisting armouring layer is made from steel wires that do not meet H S resistance criteria.