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:
Jan. 26, 2016
Filed:
Nov. 16, 2012
Applicant:
Loadmaster Universal Rigs, Inc., Houston, TX (US);
Inventor:
R. Michael Barnes, Magnolia, TX (US);
Assignees:
Canyon Oak Energy LLC, Houston, TX (US);
Loadmaster Universal Rigs, Inc., Houston, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 3/02 (2006.01); E21B 19/084 (2006.01); E21B 7/02 (2006.01);
U.S. Cl.
CPC ...
E21B 3/02 (2013.01); E21B 7/022 (2013.01); E21B 19/084 (2013.01);
Abstract
A top drive assembly having a top drive traveling block; a retracting guide dolly for use with the top drive traveling block and top drive operably by a master control system to hydraulically operate all of the top and bottom dolly arms simultaneously to extend and retract the top drive and top drive traveling block laterally and move the dolly as needed based on signals from a plurality of sensors disposed on the drilling rig, or on equipment adjacent the drilling rig.