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:
Mar. 13, 2018
Filed:
Dec. 05, 2014
Applicant:
Harnischfeger Technologies, Inc., Wilmington, DE (US);
Inventors:
Matthew L. Gross, West Allis, WI (US);
Richard L. Nicoson, Hartford, WI (US);
Assignee:
Harnischfeger Technologies, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F 3/407 (2006.01); E21C 27/30 (2006.01); E02F 3/30 (2006.01); E02F 3/46 (2006.01); E21C 47/00 (2006.01);
U.S. Cl.
CPC ...
E02F 3/4075 (2013.01); E02F 3/304 (2013.01); E02F 3/308 (2013.01); E02F 3/46 (2013.01); E21C 27/30 (2013.01); E21C 47/00 (2013.01);
Abstract
A dipper door trip assembly includes a dipper, a dipper door pivotally coupled to the dipper, a linkage assembly including a sliding latch bar disposed at least partially in the dipper door, and a latch keeper coupled to the dipper. The latch keeper includes a roller that engages and disengages the latch bar.