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, 2024
Filed:
Sep. 12, 2022
Applicant:
Wwt North America Holdings, Inc., Houston, TX (US);
Inventors:
Sarah Banks, Fullerton, CA (US);
Norman Bruce Moore, Aliso Viejo, CA (US);
Assignee:
WWT North America Holdings, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/10 (2006.01);
U.S. Cl.
CPC ...
E21B 17/1007 (2013.01);
Abstract
A non-rotating drill pipe protector comprising a collar for attachment to a drill pipe and a sleeve positioned around the collar wherein drilling fluid passing between flexible bearing surfaces between the collar and the sleeve generate hydrodynamic bearings in both an axial and thrust direction of the drill pipe.