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:
Dec. 07, 1982
Filed:
Nov. 28, 1980
Applicant:
Inventor:
Charles Sparks, Le Vesinet, FR;
Assignee:
Institut Francais Du Petrole, Rueil-Malmaison, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ; E21B / ;
U.S. Cl.
CPC ...
166367 ; 166345 ; 166346 ; 166351 ; 2851 / ;
Abstract
This riser has a central pipe connected to an underwater installation through a flexible assembly, and a plurality of satellite pipes connected to corresponding tubes of the underwater installation through a plurality of hoses each arranged along an helical winding. Upper and lower fastening means secure these hoses to the upper and lower parts of the flexible assembly and maintain the ends of each connecting hose in the extension of the helical winding.