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:
Jan. 24, 2023
Filed:
Feb. 18, 2020
Applicant:
Probe Technology Services, Inc., Fort Worth, TX (US);
Inventors:
Marvin Beckman, Mineral Wells, TX (US);
Thientu Ho, Arlington, TX (US);
Loi Tran, Benbrook, TX (US);
Mark Hastings, Weatherford, TX (US);
Terry Hendrix, Keller, TX (US);
Assignee:
Probe Technology Services, Inc., Fort Worth, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01D 5/22 (2006.01); E21B 47/00 (2012.01); E21B 47/085 (2012.01);
U.S. Cl.
CPC ...
G01D 5/2291 (2013.01); E21B 47/00 (2013.01); E21B 47/085 (2020.05);
Abstract
A caliper-arm-position sensor comprising a differential variable reluctance transducer (DVRT) and circuits to drive the DVRT with a substantially sinusoidal signal and to sample a signal at the DVRT once per drive-signal cycle at a predetermined position in the drive-signal cycle is disclosed.