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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.:

US 11225854 B1

PDFFull Text
Date of Patent:
Jan. 18, 2022

Filed:

Jan. 26, 2016

Modular top drive system

Applicant:

Weatherford Technology Holdings, Llc, Houston, TX (US);

Inventors:

Martin Helms, Burgdorf, DE;

Martin Liess, Seelze, DE;

Assignee:

Weatherford Technology Holdings, LLC, Houston, TX (US);

Attorney:

Patterson + Sheridan, LLP

Primary Examiner:

Matthew Troutman

Assistant Examiner:

Douglas S Wood

Int. Cl.
CPC ...
E21B 41/00 (2006.01); E21B 3/02 (2006.01); E21B 19/16 (2006.01); E21B 19/00 (2006.01); E21B 19/07 (2006.01); E21B 19/06 (2006.01);
U.S. Cl.
CPC ...
E21B 41/00 (2013.01); E21B 3/02 (2013.01); E21B 19/16 (2013.01);
Abstract

A modular top drive system for construction of a wellbore includes a motor unit. The motor unit includes: a drive body; a drive motor having a stator connected to the drive body; a trolley for connecting the drive body to a rail of a drilling rig; and a drive ring torsionally connected to a rotor of the drive motor and having a latch profile for selectively connecting one of: a drilling unit, a casing unit, and a cementing unit to the motor unit.

Find Patent Forward Citations

Helms, Martin. (2022). Modular top drive system (U.S. Patent No. 11225854). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11225854

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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