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:
Sep. 19, 1989

Filed:

Oct. 27, 1986
Applicant:
Inventors:

Claude Bournazel, Dampierre, FR;

Jany Feret, Marly Le Roi, FR;

Assignee:

Institut Francais du Petrole, Rueil-Malmaison, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L / ; F16L / ;
U.S. Cl.
CPC ...
138130 ;
Abstract

A reinforced flexible duct, particularly for transporting pressurized fluids having an internal pressure reinforcement and a traction resisting reinforcement. The internal pressure reinforcement is wound at a high angle with respect to the axis of the duct and the traction resisting reinforcement comprises at least one pair of crossed layers wound at an angle at most equal to 55.degree.. The modulus of elasticity of the material for the internal pressure resisting reinforcement is smaller than the modulus of elasticity of the material for the traction resisting reinforcement.


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Bournazel, Claude. (1989). Flexible duct having no appreciable variation in length under the effect (U.S. Patent No. 4867205). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4867205

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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