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:
Nov. 20, 2007
Filed:
Nov. 25, 2003
Thomas Koithan, Houston, TX (US);
Graham Ruark, Houston, TX (US);
John W. Newman, Winnsboro, LA (US);
David M. Haugen, League City, TX (US);
David Shahin, Houston, TX (US);
Thomas Koithan, Houston, TX (US);
Graham Ruark, Houston, TX (US);
John W. Newman, Winnsboro, LA (US);
David M. Haugen, League City, TX (US);
David Shahin, Houston, TX (US);
Weatherford/Lamb, Inc., Houston, TX (US);
Abstract
A method and apparatus for connecting threaded members while ensuring that a proper connection is made. In one embodiment, the applied torque and/or rotation are measured at regular intervals throughout a pipe connection makeup. When a shoulder contact is detected, a predetermined torque value and/or rotation value is added to the measured torque and/or rotation values, respectively, at shoulder contact and rotation continued until this calculated value(s) is reached.