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. 24, 2020
Filed:
Feb. 10, 2017
Applicant:
Harnischfeger Technologies, Inc., Wilmington, DE (US);
Inventors:
Jason E. Gaska, Columbus, WI (US);
Samuel F. Haworth, Oak Creek, WI (US);
Assignee:
Joy Global Surface Mining Inc, Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/18 (2006.01); E21B 19/14 (2006.01); E21B 15/00 (2006.01); E21B 17/042 (2006.01);
U.S. Cl.
CPC ...
E21B 19/18 (2013.01); E21B 15/00 (2013.01); E21B 17/042 (2013.01); E21B 19/146 (2013.01);
Abstract
A bit changer assembly includes a bit basket actuator assembly configured to be coupled to a drill rig. The bit basket actuator assembly includes an actuator, a guiderail, and a bit basket that is movably coupled to the guiderail via actuation of the actuator. The bit changer assembly also includes a bit carousel configured to be coupled to the drill rig, such that the bit carousel is rotatably and vertically moveable relative to the drill rig.