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:
Apr. 14, 2020
Filed:
May. 20, 2016
Applicant:
Ulterra Drilling Technologies, L.p., Fort Worth, TX (US);
Inventors:
Assignee:
Ulterra Drilling Technologies, L.P., Fort Worth, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 3/79 (2006.01); E21B 4/00 (2006.01); E21B 17/03 (2006.01);
U.S. Cl.
CPC ...
F16D 3/79 (2013.01); E21B 4/006 (2013.01); E21B 17/03 (2013.01);
Abstract
A universal joint assembled to a drill string transfers torque between two components where rotation of the components may not be completely aligned. The universal joint includes upper and lower longitudinal members each connected to opposite sides of a bearing element. The elements are connected to the bearing element at spaced radial positions. As the joint rotates the bearing element flexes between the connections to accommodate misalignment of the elements. Axial force can be transferred through the bearing element as well as torque.