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:
Oct. 02, 2018
Filed:
Jul. 28, 2014
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
Bhargav Gajji, Houston, TX (US);
Ketan Chimanlal Bhaidasna, Houston, TX (US);
Assignee:
HALLIBURTON ENERGY SERVICES, INC., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D 5/26 (2006.01); G01L 3/08 (2006.01);
U.S. Cl.
CPC ...
G01D 5/26 (2013.01); G01L 3/08 (2013.01); H05K 999/99 (2013.01);
Abstract
A system includes a shaft and a light path surface coupled to or integrated with the shaft. The light path surface is displaced as a function of twist angle at a point along the shaft. The system also includes a sensor configured to measure the light path length that varies according to displacement of the light path surface. The system also includes a processing unit that determines a twist angle value for the point along the shaft based on the measured light path length.