ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,830, issued on Dec. 23, was assigned to Caterpillar Inc. (Peoria, Ill.).
"Hydraulic hammer" was invented by Cody Thomas Moore (Robinson, Texas) and John Kevin Clemons (Wamego, Kan.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The power cell for a hammer may comprise a head, a cylinder and a piston. The head may include a main bore, a satellite bore and a lower retainer. The main bore includes an upper chamber that includes a trough, first and second furrows, and a lock wall. The trough may include a port that extends from the main bore into the satellite bore. The lock wall may extend between the furrows. The lower retainer may be disposed in the ...