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. 12, 2019
Filed:
Jun. 16, 2017
National Oilwell Varco Uk Limited, Manchester, GB;
Richard Matthew Westgarth, Ouston, GB;
NATIONAL OILWELL VARCO UK LIMITED, Manchester, GB;
Abstract
Apparatus for coupling first and second tubular members includes a first ring coupled to the first tubular member and having a castellated annular first surface with teeth extending in a first direction, and having a projecting tab extending in a second direction opposite the first. The tab is received in a recess in the first tubular member and has a beveled surface. A key is configured to be disposed in the first recess, and has a beveled surface that engages the beveled surface of the tab. A through-bore in the key is aligned with a fastener-receiving bore in the first tubular member and a fastener is disposed in the aligned bores. A second castellated annular surface coupled to the second tubular member has teeth meshing with the teeth of the first castellated annual surface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile