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:
Sep. 05, 2023
Filed:
Mar. 02, 2020
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventors:
Euan Kirkhope, Mayfield, AU;
Johannes Wesselmann, Dortmund, DE;
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21D 23/14 (2006.01); E21D 23/00 (2006.01); E21D 23/08 (2006.01); E21F 13/06 (2006.01); E21D 23/12 (2006.01);
U.S. Cl.
CPC ...
E21D 23/144 (2016.01); E21D 23/006 (2013.01); E21D 23/0052 (2013.01); E21D 23/085 (2013.01); E21D 23/12 (2013.01); E21D 23/142 (2016.01); E21F 13/06 (2013.01);
Abstract
The present invention pertains to a method for monitoring operation of a mining machine unit, particularly of a longwall mining system, having a shield unit connected to a material removing unit by means of an actuator for adjusting a distance between the shield unit and the material removing unit, the method comprises the steps of determining a position change of the shield unit during an actuating operation of the actuator; and a step of detecting a malfunction of the mining machine unit based on the determined position change.