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:
Apr. 21, 2015

Filed:

Jun. 16, 2014
Applicant:

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

Inventors:

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

Rainer Poetter, North Prairie, WI (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 3/60 (2006.01); 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 9/14 (2013.01); E21C 27/30 (2013.01); E02F 3/38 (2013.01);
Abstract

A mining shovel includes a digging assembly having a generally V-shaped boom including a lower connection point for attachment to the mining shovel. A first portion of the boom extends generally upwardly from the lower connection point, and a second portion of the boom is angled with respect to and extends upwardly and forwardly from the first portion. The second portion includes a distal end defining a sheave support, and a pivot element is positioned generally at a connection area between the first portion and the second portion. The digging assembly also includes a boom attachment having a first end that is pivotally supported by the pivot element and a second end that is supported by the sheave support.


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