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.

Date of Patent:
Jan. 25, 2000

Filed:

Jul. 06, 1993
Applicant:
Inventors:

Patrice Jung, La Mailleraye, FR;

Guy Le Bail, Yaniville, FR;

Assignee:

COFLEXIP, Paris, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138131 ; 138135 ; 138150 ; 138154 ; 138173 ;
Abstract

The invention relates to a flexible tubular conduit having at least one tubular layer constituted by at least one molded strip of a cross section substantially in the form of an elongated S, wound helically and having a cross section formed of a first and of a second principal cylindrical coaxial spans joined together by an inclined central portion, each of the first and second principal cylindrical spans being united by a first convex radial portion to a first secondary cylindrical span and by a second convex radial portion to a second secondary span. The second secondary span comprises a section connecting to the second convex radial portion (9), an end section (12) and a like intermediate section (13) whose concavity is turned away from the second principal span (6), and the second secondary span (12, 13) is arranged such that, when the strip is in the wound state, the connecting section is thrusting against the first principal span (5') of an adjacent spiral, and the end section (12) applies itself to the said first principal span (5')


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