ALEXANDRIA, Va., July 15 -- United States Patent no. 12,662,939, issued on June 23, was assigned to Joy Global Underground Mining LLC (Warrendale, Pa.).
"Guide shoe for mining machine" was invented by Ryan E. Perry (Venus, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A guide shoe for a mining machine includes a shoe body, a through hole, and a support. The shoe body is configured to engage a rack. The through hole extends between a first wall of the shoe body and a second wall of the shoe body, and the through hole extends along a central axis. The support is coupled to the first wall, and the support is configured to engage a shaft coupled to a drive sprocket engaging the rack. At least one of the sha...