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. 27, 2015
Filed:
Dec. 18, 2012
Applicant:
Caterpillar Global Mining Highwall Miners Llc, Beckley, WV (US);
Inventors:
Stewart Myers, Beckley, WV (US);
Robert Henry, Princeton, WV (US);
Cornelis Wilhelm In't Hout, Dordrecht, NL;
Assignee:
Caterpillar Global Mining Highwall Miners LLC, Beckley, WV (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21C 27/24 (2006.01); E21C 25/10 (2006.01);
U.S. Cl.
CPC ...
E21C 25/10 (2013.01); E21C 27/24 (2013.01);
Abstract
A rotary cutter drum for a continuous mining machine having a cutter drum, a bearing hub, an inner bearing, a sealing assembly and a shaft disposed in an inner portion of the cutter drum, the shaft having at least one flat passageway disposed along a longitudinal axis of the hub for allowing a lubricating fluid to move from an oil reservoir to a bearing surface.