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:
Oct. 10, 2017
Filed:
Apr. 22, 2015
Applicant:
Harnischfeger Technologies, Inc., Wilmington, DE;
Inventors:
Matthew L. Gross, West Allis, WI (US);
Richard Nicoson, Hartford, WI (US);
Assignee:
Harnischfeger Technologies, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C 27/30 (2006.01); E02F 3/30 (2006.01); E02F 3/407 (2006.01); E02F 9/00 (2006.01);
U.S. Cl.
CPC ...
E21C 27/30 (2013.01); E02F 3/308 (2013.01); E02F 3/4075 (2013.01); E02F 9/006 (2013.01);
Abstract
A cartridge includes a body, an aperture extending through the body sized to receive a pivot pin, and a spherical bushing disposed within the body. The cartridge also includes a first internal seal disposed axially on one side of the bushing and a second internal seal disposed axially on an opposite side of the bushing. The cartridge also includes an end cap disposed at least partially within the aperture that abuts the bushing and prevents the bushing from moving axially in a first direction within the aperture.