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:
Mar. 24, 2026

Filed:

Mar. 08, 2024
Applicant:

Joy Global Underground Mining Llc, Warrendale, PA (US);

Inventor:

Ryan E. Perry, Venus, PA (US);

Assignee:

Joy Global Underground Mining LLC, Warrendale, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21C 35/12 (2006.01); E21C 29/02 (2006.01); E21C 35/10 (2006.01);
U.S. Cl.
CPC ...
E21C 29/02 (2013.01); E21C 35/10 (2013.01); E21C 35/12 (2013.01);
Abstract

A rackbar for a mining machine has a body including a first end and second end, an inner rack wall, an outer rack wall spaced from the inner rack wall, a plurality of gear teeth extending between the inner rack wall and the outer rack wall, an extension disposed adjacent the first end, a pin aperture positioned on the extension, and a rib extending along a surface of the extension. The inner and outer rack walls extend between the first end and the second end parallel to a rack axis. The extension extends in a direction perpendicular to the rack axis. The pin aperture is configured to receive a pin.


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