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:
Mar. 28, 2017
Filed:
Dec. 07, 2015
Applicant:
Blackhawk Specialty Tools, Llc, Houston, TX (US);
Inventors:
Ron D. Robichaux, Houma, LA (US);
James F. Giebeler, San Bernardino, CA (US);
Juan Carlos E. Mondelli, Houston, TX (US);
Assignee:
Blackhawk Specialty Tools, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/068 (2006.01); E21B 33/05 (2006.01); E21B 33/13 (2006.01);
U.S. Cl.
CPC ...
E21B 33/068 (2013.01); E21B 33/05 (2013.01); E21B 33/13 (2013.01);
Abstract
A remotely operated lifting top drive cement head has a high tensile strength and the ability to swivel or rotate. The cement head permits selective launching of darts, setting plugs, balls or other objects which can be held in place within the cement head without being damaged or washed away by slurry flow, but which can be launched as desired. The cement head can be remotely operated without requiring personnel to be lifted off the rig floor to actuate the tool or observe tool status.