ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,212, issued on Jan. 20, was assigned to Caterpillar Inc. (Peoria, Ill.).

"Retention system for ripper tips" was invented by Nathan R. Bjerke (Peoria, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A work tool or a wear member includes a working portion or a wear portion, a hollow portion that further defines a lock receiving aperture defining an axis of rotation, a radial direction, and a circumferential direction. The axis of rotation is transverse to the direction of assembly of work tool or wear member as the member is slid over a nose portion of a tool adaptor or the like. The axis of rotation is spaced away from the direction the pin recei...