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:
Sep. 08, 2015

Filed:

Oct. 12, 2012
Applicant:

Vermeer Manufacturing Company, Pella, IA (US);

Inventors:

Matthew David Stringer, Pella, IA (US);

Nathaniel Zadok Gustavson, Pella, IA (US);

Michael Dale Van Zee, Pella, IA (US);

Philip Robert Lane, Pella, IA (US);

Kevin Duane Sebolt, Udell, IA (US);

Tod J. Michael, Chariton, IA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/04 (2006.01); E21B 3/02 (2006.01); B60K 37/02 (2006.01);
U.S. Cl.
CPC ...
E21B 7/046 (2013.01); E21B 3/02 (2013.01); E21B 7/04 (2013.01);
Abstract

A dual drive drilling system having a plurality of drill rods that make up a drill string and a steering element for controlling the path of the drill string is disclosed. The dual drive drilling system also includes a drill bit located near the end of the drill string, a first rotational drive for controlling the rotation of a steering element, and a second rotational drive for controlling the rotation of a drill bit. Further, the dual drive drilling system also includes a joystick capable of moving along a first and second axis for controlling both the first and second rotational drives, wherein the movement of the joystick along the first axis controls rotation of the first rotational drive, and the movement of the joystick along the second axis controls rotation of the second rotational drive.


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