ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,391,320, issued on Aug. 19, was assigned to Joy Global Surface Mining Inc (Milwaukee).
"Guide rail for crawler track" was invented by Ethan Pedretti (Holmen, Wis.) and Pat Sterling (West Allis, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A replaceable guide rail for a crawler includes a base that has a flange. The replaceable guide rail further includes a hole extending laterally through the flange that is configured to receive a fastener to secure a portion of the crawler to the flange, a guide member extending along the centerline and being configured to contact a track portion of the crawler and be worn down during movement of the track porti...