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.

Date of Patent:
Mar. 29, 2016

Filed:

Sep. 20, 2013
Applicant:

Harnischfeger Technologies, Inc., Wilmington, DE (US);

Inventors:

William J. Hren, Wauwatosa, WI (US);

James M. Hutsick, Racine, WI (US);

Patrick M. Severson, Milwaukee, WI (US);

Samuel F. Haworth, Oak Creek, WI (US);

Jason Knuth, Brookfield, WI (US);

Assignee:

Harnischfeger Technologies, Inc., Wilmington, DE (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 3/30 (2006.01); E02F 9/14 (2006.01); E21C 27/30 (2006.01); E02F 3/38 (2006.01);
U.S. Cl.
CPC ...
E02F 3/308 (2013.01); E02F 3/38 (2013.01); E02F 9/14 (2013.01); E21C 27/30 (2013.01);
Abstract

A mining shovel includes a base for supporting the shovel on a support surface, a boom, an elongated member movably coupled to the boom, and a support member. The boom includes a first end pivotably coupled to the base and a second end positioned away from the base, the boom being pivotable about a boom pivot axis extending transversely to the boom proximate the first end. The elongated member is pivotable about a shaft positioned between the first end and the second end of the boom. The support member biases the boom against pivoting movement about the boom pivot axis, and the support member extends between the base and the boom.


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