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. 12, 2019
Filed:
Feb. 08, 2018
Applicant:
Joy MM Delaware, Inc., Wilmington, DE (US);
Inventors:
Edward L. Doheny, II, River Hills, WI (US);
Ben Snyman, Mars, PA (US);
David Stryffeler, Franklin, PA (US);
Anthony Reid, Whitefish Bay, WI (US);
Hekkie van Dyk, Wexford, PA (US);
Assignee:
Joy Global Underground Mining LLC, Warrendale, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C 25/10 (2006.01); E21C 35/00 (2006.01);
U.S. Cl.
CPC ...
E21C 25/10 (2013.01); E21C 35/00 (2013.01);
Abstract
A mining machine including a chassis, an actuator, a cutter drum supported by the chassis, the cutter drum driven by the actuator, a cutter bit coupled to the cutter drum, and a controller. The controller includes a processor and memory and is configured to measure a characteristic of the actuator, determine the cutter bit is worn based on the measured characteristic of the actuator, and output a signal when the cutter bit is determined to be worn.