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:
Jun. 30, 2026
Filed:
Jun. 10, 2024
Schlumberger Technology Corporation, Sugar Land, TX (US);
Eloise Lafitte-Houssat, Clamart, FR;
Remi Didier Robutel, Clamart, FR;
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Abstract
A position detection system comprising a hydraulic actuator including a cylinder and piston adapted to move within the cylinder; an ultrasonic transducer adapted to detect an ultrasonic signal indicative of a position of the piston within the cylinder; and a controller. The controller is adapted to receive the ultrasonic signal from the ultrasonic transducer, implement a cross-correlation function to identify a first echo and a second echo in the ultrasonic signal, determine a velocity of first echo and the second echo, and determine the position of the piston within the cylinder in response to determining that the difference between the velocity of the first echo and the second echo and a theoretical velocity is less than a threshold.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile