US Patent Issued to Caterpillar on Nov. 11 for "Adapter board having a tool bit attachment portion" (Illinois Inventors)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,226, issued on Nov. 11, was assigned to Caterpillar Inc. (Peoria, Ill.).

"Adapter board having a tool bit attachment portion" was invented by David Bruno Parzynski Jr. (Peoria, Ill.) and Thomas Marshall Congdon (Dunlap, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tapered bushing includes a conical inner surface defining a conical axis, and a radial direction. The tapered bushing further includes an outer surface of revolution, and defines a minimum radial wall thickness that ranges from 3.0 mm to 15.0 mm measured from the conical inner surface to the outer surface of revolution. Also, the conical inner surface defines a draft angle that ra...