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:
Jun. 28, 2011
Filed:
Apr. 03, 2009
Applicants:
William John Stroshein, Calgary, CA;
David Louis Richard, Calgary, CA;
Monte Neil Wright, Calgary, CA;
Leon Keith Jantzen, Calgary, CA;
Imad Assaf, Calgary, CA;
Inventors:
William John Stroshein, Calgary, CA;
David Louis Richard, Calgary, CA;
Monte Neil Wright, Calgary, CA;
Leon Keith Jantzen, Calgary, CA;
Imad Assaf, Calgary, CA;
Assignee:
Weatherford Canada Partnership, Calgary, Alberta, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus for handling pipes in a derrick and racking the pipes on a pipe racking assembly mounted on the derrick is provided to improve the stability of transferring pipes during a round trip operation.