ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,137, issued on May 26, was assigned to KONINKLIJKE PHILIPS N.V. (Eindhoven, Netherlands).
"Toothbrush with tapping motion" was invented by Wolter Benning (Seattle).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure is directed to a low-cost toothbrush with a simple-to-manufacture design that provides a tapping motion of the brush head. In an embodiment, a dental cleaning device includes an eccentric rotating mass motor and a drive shaft mechanically coupled to the motor. A spring element is mounted to the drive shaft in a configuration in which it acts in a direction perpendicular to the axis of the drive shaft. The spring element a...