ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,608, issued on May 13, was assigned to Clover Equipment LLC (Anaheim, Calif.).
"Selectively frictionally engaged hole cover" was invented by Mike Reardon (Yorba Linda, Calif.) and Kevin Reardon (Anaheim Hills, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A selectively frictionally engaged hole cover for a bore hole cored from a paved surface that includes a cover plate configured to cover the bore hole and support vehicular traffic. An engagement mechanism is attached to the cover plate and extends down into the bore hole. The engagement mechanism is configured to be actuated by a user torque input that causes an engagement plate selectivel...