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.

Date of Patent:
Feb. 12, 2019

Filed:

May. 13, 2014
Applicant:

Smith International, Inc., Houston, TX (US);

Inventors:

Somasundaram Valliyappan, Spring, TX (US);

Kenneth M. Nevlud, Houston, TX (US);

Assignee:

SMITH INTERNATIONAL, INC., Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 4/00 (2006.01); F16C 17/04 (2006.01); E21B 4/02 (2006.01);
U.S. Cl.
CPC ...
E21B 4/003 (2013.01); E21B 4/02 (2013.01); F16C 17/04 (2013.01); F16C 2352/00 (2013.01);
Abstract

A bearing assembly for a drilling tool. A thrust bearing assembly for use in a drilling tool may include a first thrust frame having a generally cylindrical hollow body with a first inner surface, where the first thrust frame includes: (i) first flow diverters protruding laterally from the first inner surface toward a longitudinal axis of the thrust bearing assembly and (ii) first flow ports formed along the first inner surface between adjacent first flow diverters. The thrust bearing assembly may also include a stationary thrust bearing having a generally cylindrical base with legs extending in an axial direction from the base, where the legs may be generally positioned within the first flow ports.


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