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:
Sep. 05, 2017
Filed:
May. 29, 2013
Applicant:
National Oilwell Varco Norway As, Kristiansand S, NO;
Inventors:
Jonathan Garrick Webb, Kristiansand, NO;
Hugo Leonardo Rosano, Kristiansand, NO;
David Allen Hill, Kristiansand, NO;
Trond Werner Moen, Kristiansand, NO;
Assignee:
NATIONAL OILWELL VARCO NORWAY AS, Kristiansand S, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/02 (2006.01); B25B 5/14 (2006.01); E21B 19/16 (2006.01);
U.S. Cl.
CPC ...
E21B 19/02 (2013.01); B25B 5/147 (2013.01); E21B 19/161 (2013.01);
Abstract
A die holder device includes a die holder that has an axial centre line and is adapted to receive a clamp die. The die holder is included in a clamp arm or slide block. The die holder is restricted from axial movement by at least a first complete or partial conical surface and possibly by a second complete or partial conical surface that directly or indirectly bears against the clamp arm or the slide block.