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:
Mar. 25, 2008
Filed:
Dec. 29, 2004
Applicant:
Jeffrey W. Hamner, Allen, TX (US);
Inventor:
Jeffrey W. Hamner, Allen, TX (US);
Assignee:
Atlas Copco Drilling Solutions Inc., Garland, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A drilling machine including a frame, a tower, a rotary head, and a rod handling device. The frame is supported for movement over the ground and the tower is mounted on the frame. The rotary head is movable along the tower and is engageable with the drill string for rotating the drill string. The rod handling device is movable along the tower and operable to selectively support the drill string. The rod handling device is biased to a first position along the tower.