Complex motion toothbrush

Details Complex motion toothbrush Complex motion toothbrush

2005-05-17

2005-05-17

Spisich, Mark (Department: 1744)

Brushing, scrubbing, and general cleaning

Machines

Brushing

C015S022100, C015S028000

Reexamination Certificate

active

06892413

ABSTRACT:
An electrically driven toothbrush has a rotatable shaft with a cam preferably at a remote end of the shaft, which fits into a slot in a bristle holder. The holder is mounted for rotation in a toothbrush head. When the shaft rotates cam describes a circle and drivingly engages the slot to cause the holder to vibrate in a first brushing motion. A second bristle holder is also driven by the shaft, for a second kind of brushing motion. The second bristle holder is driven through and engagement with a portion of the remote end and/or with one or more additional cams or cam portions included on the shaft.

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