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:
May. 12, 2020
Filed:
Apr. 22, 2016
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Bastiaan Liezenberg, Sugar Land, TX (US);
Ronal MacInnes, Houston, TX (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16C 19/52 (2006.01); E21B 33/02 (2006.01); E21B 33/068 (2006.01); E21B 34/02 (2006.01); E21B 33/08 (2006.01); E21B 33/03 (2006.01); E21B 21/10 (2006.01);
U.S. Cl.
CPC ...
F16C 19/52 (2013.01); E21B 21/106 (2013.01); E21B 33/03 (2013.01); E21B 33/068 (2013.01); E21B 33/085 (2013.01); E21B 34/02 (2013.01);
Abstract
A pressure indicator assembly disposed in a bearing has a first pressure relief valve and a first piston disposed in a first passage formed in a first component of the bearing and a first proximity switch disposed an initial distance away from the first piston. A first preset pressure value is set on the first pressure relief valve to indicate when pressure within the bearing is greater than or equal to the first preset pressure value.