ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,966, issued on April 21.
"Vibrator mechanism usable with a concrete finishing tool" was invented by Frank Mikowychok (Lincoln, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vibration mechanism for a concrete finishing tool includes adapters for removable attachment to the tool and a device housing with a general chamber supporting a battery electrically connected to a vibrator assembly, which includes a vibrator housing with annular fins and openings that slow heat transfer and direct heat away from other components. Vibrator assembly components positioned in vibrator housing are a rotor with a rotor shaft and weighted body, a bearing sup...