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:
Mar. 12, 2002
Filed:
Dec. 12, 2000
Applicant:
Inventors:
François Dupoiron, Barentin, FR;
Philippe François Espinasse, Bihorel, FR;
Patrice Jung, La Mailleraye-sur-Seine, FR;
Assignee:
Coflexip, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 1/116 ;
U.S. Cl.
CPC ...
F16L 1/116 ;
Abstract
A tubular flexible pipe which from the inside outward includes an inner sealing sheath of polymer, a cylindrical pressure vault comprised of a helical wire winding with gaps between the windings, perhaps a wound tensile armoring layer and a scaling outer sheath. The vault includes an elongated masking element, at least partially masking the gaps between the windings of the wire and being at the inner sheath, The masking element is a wire helically coiled in a recess at the inner face of the vault or is an axial extension of the vault wire.