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.

Date of Patent:
Feb. 13, 2024

Filed:

Jun. 13, 2022
Applicant:

The Charles Machine Works, Inc., Perry, OK (US);

Inventors:

David L. Horst, Ashland, OH (US);

B J Burky, Burbank, OH (US);

Tim Casey, Wooster, OH (US);

Richard B. Gentry, Jeromesville, OH (US);

Stuart Riggenbach, Wooster, OH (US);

Aaron Edward Traxler, Columbia Station, OH (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/16 (2006.01); E21B 19/08 (2006.01); E21B 7/28 (2006.01); E21B 7/04 (2006.01);
U.S. Cl.
CPC ...
E21B 19/16 (2013.01); E21B 7/046 (2013.01); E21B 7/28 (2013.01); E21B 19/08 (2013.01);
Abstract

A horizontal directional drilling system. The system has a pilot drill and an exit side drill, with a drill string extending between them. A backreamer is positioned between the drills to enlarge a borehole. The pilot drill pulls and rotates the backreamer. The exit side drill adds segments to the product pipe and pushes the product pipe into the enlarged borehole. The exit side drill is equipped with a rotational disconnect. The disconnect is engaged to allow torque transfer between a motor and a spindle when adding segments to the product pipe. The disconnect is disengaged to prevent torque transfer between the motor and the spindle when pushing the product pipe into the enlarged borehole.


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