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. 11, 2019
Filed:
Jun. 28, 2016
Applicant:
Ulterra Drilling Technologies, L.p., Fort Worth, TX (US);
Inventors:
Justin S. McMillan, Fort Worth, TX (US);
Christopher M. Casad, Benbrook, TX (US);
Beau J. St. Pierre, Hudson Oaks, TX (US);
Carl Aron Deen, Fort Worth, TX (US);
Assignee:
Ulterra Drilling Technologies, L.P., Fort Worth, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 17/20 (2006.01); F16D 3/56 (2006.01);
U.S. Cl.
CPC ...
F16D 3/56 (2013.01); E21B 17/20 (2013.01);
Abstract
A universal joint assembled to a drill string transfers torque and axial force between two components where the shafts of the components are not completely aligned. The universal joint includes end members connected to opposite ends of a cable for connecting to components of the drill string. As the joint rotates the cable flexes to accommodate misalignment between the connected drill string components.