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:
Jul. 20, 2021
Filed:
Jan. 22, 2018
Applicant:
Joy Global Surface Mining Inc, Milwaukee, WI (US);
Inventors:
Matthew L. Gross, West Allis, WI (US);
Joseph J. Colwell, Hubertus, WI (US);
Richard Nicoson, Hartford, WI (US);
Assignee:
JOY GLOBAL SURFACE MINING INC, Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 3/40 (2006.01); E02F 3/407 (2006.01); E02F 3/58 (2006.01); E02F 3/30 (2006.01);
U.S. Cl.
CPC ...
E02F 3/4075 (2013.01); E02F 3/308 (2013.01); E02F 3/58 (2013.01);
Abstract
A mining machine includes a boom, a handle coupled to the boom, a dipper coupled to the handle, and a dipper door pivotally coupled to the dipper. The mining shovel also includes a dipper door trip assembly including a trip motor coupled to the boom, a trip drum coupled to the handle, a linkage assembly coupled to the dipper door, a first actuation element extending directly from the trip motor to the trip drum, and a second actuation element extending directly from the trip drum to the linkage assembly.