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:
Feb. 24, 2015
Filed:
Jul. 23, 2010
Applicants:
Frank Benjamin Springett, Spring, TX (US);
Dean Allen Bennett, Houston, TX (US);
Inventors:
Frank Benjamin Springett, Spring, TX (US);
Dean Allen Bennett, Houston, TX (US);
Assignee:
National Oilwell Varco, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 19/00 (2006.01); B25J 15/00 (2006.01); E21B 19/14 (2006.01); E21B 19/20 (2006.01);
U.S. Cl.
CPC ...
E21B 19/14 (2013.01); E21B 19/20 (2013.01);
Abstract
Automated systems and apparatus for transferring tubulars (tubulars used in wellbore and derrick operations, such as casing, tubing, drill pipe, etc.) or stands of pipe from one location to another in a derrick, e.g. from a fingerboard to a well center are described. The system includes a fully automated drill pipe handling system to move and position the drill pipe through all the steps of the drilling process.