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. 31, 2009
Filed:
Jun. 24, 2005
Daniel Juhasz, Westminster, CA (US);
George Boyadjieff, Villa Park, CA (US);
Brian L. Eidem, Cerritos, CA (US);
Hans Van Rijzingen, Etten-Leur, NL;
Herman M. Kamphorst, Assen, NL;
Hans Joachim Dietrich Böttger, Den Helder, NL;
Gustaaf Louis Van Wechem, Reeuwijk, NL;
David Mason, Anaheim Hills, CA (US);
Ronaldus R. M. Roling, Rosmalen, NL;
Daniel Juhasz, Westminster, CA (US);
George Boyadjieff, Villa Park, CA (US);
Brian L. Eidem, Cerritos, CA (US);
Hans van Rijzingen, Etten-Leur, NL;
Herman M. Kamphorst, Assen, NL;
Hans Joachim Dietrich Böttger, Den Helder, NL;
Gustaaf Louis van Wechem, Reeuwijk, NL;
David Mason, Anaheim Hills, CA (US);
Ronaldus R. M. Roling, Rosmalen, NL;
Varco I/P, Inc., Orange, CA (US);
Abstract
An oil and gas well drilling system is provided that includes a top drive assembly having an output shaft; and a pipe running tool having a top drive extension shaft connected to the top drive output shaft and engageable with a pipe string to transmit translational and rotational forces from the top drive assembly to the pipe string, wherein the pipe running tool further includes a cementing pipe connected to the top drive extension shaft and having a fluid passageway which receives cement during a cementing operation.