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. 17, 2018
Filed:
Dec. 19, 2016
Applicant:
Harnischfeger Technologies, Inc., Wilmington, DE (US);
Inventors:
Richard Fischer, Hartland, WI (US);
Nicholas Dame, Kenosha, WI (US);
Assignee:
Harnischfeger Technologies, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 57/027 (2012.01); E21C 27/30 (2006.01); E02F 9/20 (2006.01); E02F 9/14 (2006.01); E02F 3/42 (2006.01); E02F 3/30 (2006.01); F16H 57/02 (2012.01);
U.S. Cl.
CPC ...
F16H 57/027 (2013.01); E02F 3/304 (2013.01); E02F 3/422 (2013.01); E02F 9/14 (2013.01); E02F 9/2016 (2013.01); E21C 27/30 (2013.01); F16H 2057/02034 (2013.01); F16H 2057/02082 (2013.01);
Abstract
A mining shovel includes a boom and a transmission unit coupled to the boom. The transmission unit includes an outer housing, an internal motor housing disposed within the outer housing, and a venting system coupled to the outer housing to direct air through both the outer housing and the internal motor housing.