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:
Sep. 30, 2014

Filed:

Nov. 22, 2013
Applicant:

Harnischfeger Technologies, Inc., Wilmington, DE;

Inventors:

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

Joseph J. Colwell, Hubertus, WI (US);

Jeffrey S. Schwake, Oshkosh, WI (US);

Bruce P. Kearsley, Minden, NV (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 3/30 (2006.01); E02F 9/28 (2006.01); E02F 3/46 (2006.01); E02F 3/60 (2006.01); E02F 3/407 (2006.01);
U.S. Cl.
CPC ...
E02F 3/4075 (2013.01); E02F 9/2883 (2013.01); E02F 3/46 (2013.01); E02F 3/60 (2013.01); E02F 3/308 (2013.01);
Abstract

A dipper including a dipper door and an impact actuated jaw defining a lip and a chin The jaw is rotatably mounted on the dipper door for rotation between a door-opened position and a door-closed position and positioned so that when the jaw is in the door-opened position, the jaw chin can be impacted by the dipper body when the door pivots to the door-closed position. The dipper also includes a hold open mechanism for releasably holding the door latch in the latch open position when the latch is in the open position, and a locking mechanism for releasably locking the latch when the latch is in the door-closed position. The locking mechanism includes one bar pivotally attached to the door, and another bar pivotally connected to and extending between each of the one bar and the latch.


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