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:
Aug. 02, 2022
Filed:
Jul. 06, 2020
Caterpillar Global Mining Equipment Llc, Denison, TX (US);
Caterpillar Global Mining Hms Gmbh, Dortmund, DE;
Rajesh R. Gunda, Dunlap, IL (US);
Carl J. Moberg, Dunlap, IL (US);
Timo Diekmann, Castrop-Rauxel, DE;
Ross L. Hoult, Queensland, AU;
Caterpillar Global Mining Equipment LLC, Denison, TX (US);
Abstract
A collar control system and methods for mobile drilling machines are disclosed. One method may include: automatically initiating rotation of a drill bit based on collar settings; automatically feeding the drill bit at a feed rate to form an initial hole at a predetermined reaming increment; and automatically retracting the drill bit from the initial hole when the predetermined reaming increment is achieved, but prior to reaching a collar depth. Another method may include: measuring values of multiple drill bit inputs at a predetermined sample depth region during the collar operation; storing average values for each of the drill bit inputs over the predetermined sample depth region; monitoring values of the drill bit inputs when the drill bit moves beyond the predetermined sample depth region; and ending the collar operation prior to a desired collar depth when any of the monitored values change by a predetermined threshold.