ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,816, issued on June 23.
"Replaceable blade mechanism" was invented by Joshua Boram (College Place, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The device is a tool holder capable of holding various types of tools. The device uses a cam lock mechanism designed to quickly attach and detach the tool from the tool holder. The cam lock cinches down on the shank of the tool, which virtually eliminates any play or movement during hard use. To replace the tool, the user deactivates the cam lock by pressing upward on the cam lever. In turn, the cam lobe rotates and slides out of a recessed portion of the shank. This unlocks the shank and allows the ...