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:
Dec. 27, 2016

Filed:

Jun. 24, 2014
Applicant:

Vetco Gray Inc., Houston, TX (US);

Inventor:

Joseph William Pallini, Jr., Houston, TX (US);

Assignee:

Vetco Gray Inc., Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/00 (2006.01);
U.S. Cl.
CPC ...
E21B 19/006 (2013.01); E21B 19/002 (2013.01);
Abstract

A tensioner for maintaining a tensile force in a riser extending from a subsea wellhead assembly to a deck of a floating platform includes a hydro-pneumatic assembly having a first section secured to the deck and a second section secured to a support frame. A pivot joint is coupled to the riser and to the support frame, so that the riser is retained axially static with respect to the support frame and is pivotable with respect to the support frame. A guide assembly has at least two guide elements, the guide elements being axially spaced from each other so that when the deck and the support frame move axially relative to each other, the guide assembly restricts relative rotational movement between the deck and the support frame.


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