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:
Nov. 17, 2015
Filed:
Jan. 13, 2012
Jonas Gudme, Humlebaek, DK;
Karsten Gorm Nielsen, Allerød, DK;
Jonas Gudme, Humlebaek, DK;
Karsten Gorm Nielsen, Allerød, DK;
NATIONAL OILWELL VARCO DENMARK I/S, Brondby, DK;
Abstract
An unbonded flexible pipe for transportation of fluids and comprising a tubular inner sealing sheath defining a bore. At least one armor layer surrounds the inner sealing sheath and a carcass is arranged in the bore to support the inner sealing sheath. The carcass comprises at least one profiled elongate element, which is helically wound to form directly and/or indirectly engaging elongate element windings along the length of the pipe. The carcass provides a quasi fluid permeable inner wall of the bore with discontinuities between successive turns of the wound elongate element(s). The discontinuities have an average width in the axial direction of the pipe which is about 3 mm or less when the pipe is in an unloaded and unbent condition, and the pipe can bend with a minimum bending radius of about 10 m or less in an unloaded condition.