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:
May. 13, 2014
Filed:
Jun. 26, 2009
Paul Anthony Hughes, Lancaster, GB;
Faisal J. Yousef, Houston, TX (US);
Paul Anthony Hughes, Lancaster, GB;
Faisal J. Yousef, Houston, TX (US);
First Subsea Limited, Lancaster, GB;
Canrig Drilling Technology Ltd, Houston, TX (US);
Abstract
A tubular member handling apparatus is a gripping tool () in the form of a body () having a longitudinal axis () and formed by a plurality of sleeves () connected end to end, each sleeve including a frusto-conical borecentered on said longitudinal axis; a clamp member () in each sleeve formed by clamp-segments (), each having side faces (), end faces (), a frusto-conical exterior surface () adapted to match said frusto-conical bore, and a cylindrical interior surface (); cage-segments () connected to said interior surface and having a plurality of windows () partially closing recesses () in said interior surface, which recesses are elongate in said longitudinal direction, house a roller () and have a base () inclined in said longitudinal direction so that, at a lower end () of each recess the roller protrudes through said window and at an upper end () thereof the roller protrudes less or not at all; a bias mechanism, urging said clamp-segments apart from each other in a peripheral direction; connection means () between adjacent clamp segments so that they move together when one is moved axially.