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:
Jan. 21, 2020
Filed:
Feb. 27, 2015
Applicant:
Caterpillar Global Mining Llc, Oak Creek, WI (US);
Inventors:
Jason J. Trotnow, West Allis, WI (US);
Gurbachan S. Bumraw, Franklin, WI (US);
Assignee:
Caterpillar Global Mining LLC, Tucson, AZ (US);
Primary Examiner:
Int. Cl.
CPC ...
E02F 3/42 (2006.01); E02F 3/30 (2006.01); B66D 1/34 (2006.01);
U.S. Cl.
CPC ...
E02F 3/425 (2013.01); E02F 3/30 (2013.01); B66D 1/34 (2013.01);
Abstract
A hoist drum is disclosed for use with a power shovel. The hoist drum may have a body that is hollow and generally cylindrical, and an anchor connected to an outer annular surface of the body. The hoist drum may also have at least one stiffener located inside the body and extending in an axial direction of the body across the anchor.