Ranir, LLC

Braun Gmbh

Dai Xiaoguo

Scott P Crossman

Dominik Langhammer

Tilmann Winkler

Thomas P Blandino

John C Mehnert

Andrew Paul Wilke

Kevin J Kollar

Stephen J Dieter

Michael A Andrew

Mark A Penrod

Kevin G Yost

Xu Zhenwu

Battery operated toothbrush

A spring mechanism for attaching to a power device drive unit includes a housing connectable to a portion of the power device and a shaft extending through the housing. One end of the shaft is coupled to a workpiece and a bottom member extends from the other end and is positioned adjacent the drive unit. The bottom member includes at least one of a ferromagnetic material and a permanent magnet. The bottom member, shaft and workpiece move upon actuation of the drive unit, and a spring extends laterally outwardly from the shaft between the shaft and the housing. The spring is affixed to one of the shaft and the housing, wherein the spring bends between a deformed position and a return position upon the movement of the bottom member.

Spring mechanism for power device

A replacement head for an electromagnetic toothbrush drive includes a mechanical linkage assembly for converting linear drive motion into rotational movement of the brush head. The mechanical linkage assembly includes a fixed shaft and a lever arm that extend between a movable bottom member and a fixed top member, and a link member rotatably connected to the top member and the brush head. The lever arm pivots about a fulcrum formed in the top member, and engages the link member. When the bottom member oscillates as a results of the actuation of the electromagnet in the drive unit, the lever arm pivots about the fulcrum and drives the link member to rotate in an arc shaped pattern. The rotation of the link member consequently rotates the brush head.

Replacement head for electric toothbrush

Growing community of inventors

Shanghai, China

Dai Xiaoguo