ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,409, issued on March 24, was assigned to Joy Global Underground Mining LLC (Warrendale, Pa.).
"Rackbar rotation limit" was invented by Ryan E. Perry (Venus, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "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...