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:
Aug. 10, 2021
Filed:
Nov. 01, 2019
Weatherford Technology Holdings, Llc, Houston, TX (US);
Heidi N. Cline, Cypress, TX (US);
John D. Hooker, II, Cypress, TX (US);
Karsten Heidecke, Houston, TX (US);
Bjoern Thiemann, Burgwedel, DE;
Michael Wiedecke, Salzhemmendorf, DE;
WEATHERFORD TECHNOLOGY HOLDINGS, LLC, Houston, TX (US);
Abstract
The present disclosure generally relates to a tong assembly having position sensors for controlling door opening and closing sequence. The tong assembly includes a back section, an outer door section movably coupled to the back section, a first actuator configured to move the outer door section between an open position and a closed position, an inner door section movably coupled to the back section, a second actuator configured to move the inner door section between an open position and a closed position, a first sensor positioned to measure a position of the outer door section; and a second sensor positioned to measure a position of the inner door section.