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:
Apr. 24, 2018
Filed:
May. 05, 2017
Applicant:
Joy MM Delaware, Inc., Wilmington, DE (US);
Inventors:
Colin Anthony Wade, Johannesburg, ZA;
Jacobus Ignatius Jonker, Vanderbijlpark, ZA;
Assignee:
Joy MM Delaware, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C 35/00 (2006.01); E21C 35/06 (2006.01); E21C 25/16 (2006.01);
U.S. Cl.
CPC ...
E21C 35/06 (2013.01); E21C 25/16 (2013.01);
Abstract
A mining machine including a frame, a cutting head moveably coupled to the frame and pivotable about an axis that is substantially perpendicular to a first mine surface, and a first actuator for stabilizing the frame relative to the first mine surface. The first actuator is coupled to the frame and includes a first end extendable in a first direction to engage the first mine surface. The extension of the first actuator is automatically controlled based on measurements of at least one indicator of the force between the first actuator and the first mine surface.