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.

Date of Patent:
Jun. 24, 1980

Filed:

Sep. 12, 1978
Applicant:
Inventors:

Russell L McCombs, San Antonio, TX (US);

James V Motsinger, Austin, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ; G01L / ;
U.S. Cl.
CPC ...
29240 ; 29407 ; 73139 ; 173 12 ;
Abstract

A method and apparatus are provided for making threaded joints, such as pipe joints, within a range of predetermined applied torque and turns values. A pipe or a pipe and a coupling are threaded onto the end of a pipe string. The applied torque is monitored and, when a reference torque is exceeded, the number of turns made is counted. According to a representative aspect of the invention, when either the actual torque or the actual turns are within a predetermined percentage of a predetermined minimum value for that parameter and the other parameter has exceeded a predetermined minimum value, an indication is generated to the operator of the apparatus that he should be ready to stop the joint making operation.


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