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. 07, 2017
Filed:
Feb. 06, 2015
Applicant:
Harnischfeger Technologies, Inc., Wilmington, DE (US);
Inventor:
Mooyoung Lee, Milwaukee, WI (US);
Assignee:
Harnischfeger Technologies, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 9/18 (2006.01); E02F 3/30 (2006.01); E02F 9/14 (2006.01); E02F 3/48 (2006.01); E02F 3/58 (2006.01);
U.S. Cl.
CPC ...
E02F 9/18 (2013.01); E02F 3/30 (2013.01); E02F 3/48 (2013.01); E02F 3/58 (2013.01); E02F 9/14 (2013.01);
Abstract
A mining shovel includes a base, a revolving frame coupled to the base and rotatable about an axis, a boom pivotally coupled to the revolving frame, a handle coupled to the boom, and a dipper coupled to the handle. The dipper has a dipper door, and is located at a front end of the shovel. A counterweight having a center of gravity is disposed at the rear end of the shovel to balance the shovel, and is supported by a truss structure that is coupled to the revolving frame, such that the center of gravity is disposed above the revolving frame.