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, 2010
Filed:
Jan. 18, 2006
Applicants:
David Shahin, Houston, TX (US);
Karsten Heidecke, Houston, TX (US);
Inventors:
David Shahin, Houston, TX (US);
Karsten Heidecke, Houston, TX (US);
Assignee:
Weatherford/Lamb, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 19/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus for providing additional torque in a top drive system for rotating a tubular during tubular drilling, running, and/or handling operations. In one embodiment, a gear arrangement is operatively connected to a top drive of the top drive system to increase the amount of available torque for rotating a tubular. In another embodiment, a gear box is operatively connected to the top drive to boost the amount of torque available for rotating the tubular.