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:
Jul. 02, 2019
Filed:
Nov. 21, 2016
Applicant:
Weatherford Technology Holdings, Llc, Houston, TX (US);
Inventors:
Jan Rothe, Hannover, DE;
Georg Zimbelmann, Lehrte, DE;
Bjoern Thiemann, Burgwedel, DE;
Martin Liess, Seelze, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/16 (2006.01);
U.S. Cl.
CPC ...
E21B 19/161 (2013.01); E21B 19/165 (2013.01);
Abstract
A tong assembly includes a power tong, a backup tong, and a carriage assembly operatively connecting the power tong and the backup tong. The carriage assembly includes a movable trolley assembly. The movable trolley assembly is axially located between the power tong and the backup tong. The movable trolley assembly is supported by the power tong. The movable trolley assembly is configured to axially move the power tong and backup tong relative to each other.