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:
Oct. 25, 2022
Filed:
Dec. 13, 2019
Applicant:
Caterpillar Global Mining Equipment Llc, Denison, TX (US);
Inventors:
Assignee:
Caterpillar Global Mining Equipment LLC, Denison, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 44/02 (2006.01); E21B 7/02 (2006.01); E21B 47/06 (2012.01);
U.S. Cl.
CPC ...
E21B 7/022 (2013.01); E21B 47/06 (2013.01);
Abstract
Disclosed is an automatic force adjustment control system for mobile drilling machines and methods for automatically adjusting a force on a down-the-hole drill bit of a drill string of a mobile drilling machine. A method may include: monitoring bit air pressure of the down-the-hole drill bit during an automatic down-the-hole drilling operation; and automatically adjusting a force provided to the drill string based on the monitored bit air pressure so that the bit air pressure approaches a target air pressure value.