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. 03, 2018
Filed:
Dec. 05, 2014
Premium Artificial Lift Systems Ltd., Calgary, CA;
Marcel Obrejanu, Calgary, CA;
Premium Artificial Lift Systems Ltd., Calgary, CA;
Abstract
A top sub, for connection to a tubing string of a production well, has a first engagement structure, and a mandrel has a second engagement structure. A coupling engages the first and second engagement structures. A housing covers an internal space of the tubing swivel, in which the coupling is located. The coupling includes a first coupling structure having a shape complementary to a shape of the first engagement structure and a second coupling structure having a shape complementary to a shape of the second engagement structure. One of (i) the first engagement structure and the first coupling structure and (ii) the second engagement structure and the second coupling structure has a clutch mechanism to enable the top sub to be rotated in a first direction relative to the mandrel and to rotate the mandrel with rotation of the top sub in a second direction opposite the first direction.