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:
Apr. 07, 1987
Filed:
Aug. 20, 1985
George W Peppel, Arlington, TX (US);
Paul E Sullivan, Bedford, TX (US);
Lockheed Corporation, Calabasas, CA (US);
Abstract
A tensioner (10) is disclosed for use in tensioning connecting lines (16) connecting a marine riser (14) to a floating platform (12). The tensioner (10) is a passive system which incorporates a series of cylindrical elastomeric members (42, 54, 60) which are deformed in torsion to exert the proper tension on the connecting line (16). A specially tapered drum (30) is provided on the tensioner so that the radial distance from the axis of rotation of the drum to the position where the line leaves the drum varies to compensate for the variation in torsional moment of the elastomeric members so that a predetermined tension can be maintained on the line (16) as the line is payed out and taken in from the tapered drum.