Invention Grant
- Patent Title: Flexible pipe with in-built end pieces
- Patent Title (中): 柔性管内置端部件
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Application No.: US12995569Application Date: 2009-05-28
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Publication No.: US08499799B2Publication Date: 2013-08-06
- Inventor: Jean-Louis Saltel , Benjamin Saltel , Gwenaël Tanguy , Samuel Thiebaut
- Applicant: Jean-Louis Saltel , Benjamin Saltel , Gwenaël Tanguy , Samuel Thiebaut
- Applicant Address: FR Bruz
- Assignee: Saltel Industries
- Current Assignee: Saltel Industries
- Current Assignee Address: FR Bruz
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: FR0853612 20080602
- International Application: PCT/EP2009/056550 WO 20090528
- International Announcement: WO2009/147064 WO 20091210
- Main IPC: F16L11/00
- IPC: F16L11/00 ; F16L31/00

Abstract:
This flexible pipe comprises a versatile and flexible tubular body (PP) which comprises, from the outside toward the inside, a pressure arch (1b-1c) with filaments (10) submerged in a layer of elastomer and wound in a helix with an angle of 54.7° in relation to the profile plates and an attached sealing layer (1a), as well as a pair of rigid end connector tips (EC) which comprises two coaxial cylindrical sleeves, an inner one (2) in which the sealing layer (1a) is fitted and held, and an outer one (7) which extends axially from the body side (PP) beyond the inner sleeve (2) while surrounding the transitional area, with variable diameter, of the pressure arch; the connector end is provided with a pair of flexible annular support elements (5, 6) with variable profile, arranged at this transitional area and inserted between the sealing layer (1a) and the pressure arch (1b-1c), and between the pressure arch (1b-1c) and the flange (7), respectively, avoiding shearing of the filaments upon inflation.A pipe of this type is intended in particular for the oil industry, for the transport of liquids or gases.
Public/Granted literature
- US20110100499A1 FLEXIBLE PIPE WITH IN-BUILT END PIECES Public/Granted day:2011-05-05
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