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:
Dec. 13, 2011
Filed:
Sep. 10, 2007
Applicant:
Douglas A. Hunter, Calgary, CA;
Inventor:
Douglas A. Hunter, Calgary, CA;
Assignee:
Canrig Drilling Technology Ltd., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B 13/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
Spin-in and spin-out apparatus and methods are presented wherein an oilfield tubular spinner used in combination with a wrench detects the shouldering-up of tubulars during make-up and tubular thread disengagement during break-out. Sensors are employed to quantify measurables indicative of shouldering-up and thread disengagement, the measurables being used to shutdown spin-in and spin-out operations. Thresholds are employed to detect measurable values of interest. Timers are employed to monitor and control the spin-in and spin-out operations.