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:
Mar. 21, 2023
Filed:
Apr. 21, 2021
Applicants:
Eugene Stolboushkin, Houston, TX (US);
Yingqing Xu, Tomball, TX (US);
Daniel M. Cousin, Humble, TX (US);
Inventors:
Eugene Stolboushkin, Houston, TX (US);
YingQing Xu, Tomball, TX (US);
Daniel M. Cousin, Humble, TX (US);
Assignee:
BAKER HUGHES OILFIELD OPERATIONS LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 23/04 (2006.01); E21B 34/14 (2006.01); E21B 43/26 (2006.01);
U.S. Cl.
CPC ...
E21B 34/142 (2020.05); E21B 23/04 (2013.01); E21B 43/26 (2013.01);
Abstract
A frac dart including a pressure housing, a mechanical sensor disposed through the pressure housing, a contactor inside the pressure housing and in operable communication with the mechanical sensor, and an electrical counter disposed in the pressure housing and responsive in increments to movement of the mechanical sensor that closes the contactor.