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. 25, 2011
Filed:
Dec. 12, 2006
Albert C. Odell, Ii, Kingwood, TX (US);
Richard Lee Giroux, Cypress, TX (US);
Tuong Thanh Le, Katy, TX (US);
Gary Thompson, Katy, TX (US);
Karsten Heidecke, Houston, TX (US);
Joerg Lorenz, Burgwedel, DE;
Doyle Frederic Boutwell, Jr., Houston, TX (US);
Michael Hayes, Houston, TX (US);
Bernd-georg Pietras, Wedemark, DE;
Albert C. Odell, II, Kingwood, TX (US);
Richard Lee Giroux, Cypress, TX (US);
Tuong Thanh Le, Katy, TX (US);
Gary Thompson, Katy, TX (US);
Karsten Heidecke, Houston, TX (US);
Joerg Lorenz, Burgwedel, DE;
Doyle Frederic Boutwell, Jr., Houston, TX (US);
Michael Hayes, Houston, TX (US);
Bernd-Georg Pietras, Wedemark, DE;
Weatherford/Lamb, Inc., Houston, TX (US);
Abstract
Methods and apparatus for running tubulars into and out of a wellbore. A gripping apparatus is activated with an actuator having a primary actuator and a redundant safety feature. The redundant safety feature may include one or more redundant fluid operated pistons. The gripping apparatus may include an integrated safety system adapted to prevent damage to the tubulars while making and breaking out connections between the tubulars and the tubular string.