ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,988, issued on Dec. 16, was assigned to Milwaukee Electric Tool Corp. (Brookfield, Wis.).
"Hydraulic power tool" was invented by Sean T. Kehoe (Hartland, Wis.), James G. Ballard (Waukesha, Wis.) and Marc S. D'Antuono (Whitefish Bay, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulic power tool includes a housing defining a cylinder, a piston at least partially positioned within the cylinder and movable between a retracted position and an extended position, a clevis supporting a head of the power tool, a nut coupled to an outer peripheral surface of the clevis, and a collar coupled to the housing and surrounding the nut to axially constr...