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:
Oct. 29, 2019

Filed:

Jan. 05, 2017
Applicant:

Marcel Brand, Braunschweig, DE;

Inventor:

Marcel Brand, Braunschweig, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 33/60 (2006.01); E21B 4/00 (2006.01); E21B 4/02 (2006.01); F16C 19/18 (2006.01); F16C 33/58 (2006.01); F16C 43/04 (2006.01);
U.S. Cl.
CPC ...
E21B 4/003 (2013.01); E21B 4/02 (2013.01); F16C 19/18 (2013.01); F16C 33/58 (2013.01); F16C 33/60 (2013.01); F16C 43/04 (2013.01); F16C 2352/00 (2013.01);
Abstract

An apparatus for use in a wellbore is disclosed that in one non-limiting embodiment includes a rotatable member, a thrust bearing coupled to the rotatable member, wherein the thrust bearing includes a bearing stack that further includes a unitary inner race member that includes a number of axially spaced inner races around an outer surface of the unitary inner race member. A set of bearing elements is placed in each inner race, and a separate outer race secures each set of bearing elements in each inner race.


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