ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,558, issued on Sept. 29, was assigned to Caterpillar Inc. (Peoria, Ill.).
"Dipper lip" was invented by Phillip J. Kunz (Morton, Ill.) and James G. Jamilosa (Waipahu, Hawaii).
According to the abstract* released by the U.S. Patent & Trademark Office: "A dipper lip includes a first side wing, a second side wing, a rear attachment portion that spans from the first side wing and the second side wing, and a front shovel portion that extends from the first side wing to the second side wing, and the front shovel portion defines a top shovel surface, while the rear attachment portion forms a top rear surface. The top shovel surface forms an obtuse angle with the top rear surface in a mi...