Powered toothbrush

Details Powered toothbrush Powered toothbrush

2006-06-27

2006-06-27

Crispino, Richard (Department: 1744)

Brushing, scrubbing, and general cleaning

Machines

Brushing

C015S022100

Reexamination Certificate

active

07065821

ABSTRACT:
A powered toothbrush provides movement of cleaning elements which replicate the preferred method of cleaning teeth, namely up-and-down movement on the surface of the user's teeth. This preferred movement is obtained by translating rotational movement of a motor, first into reciprocation movement within the toothbrush through the interaction of a cam follower and helical tracks, and then translation of the reciprocating movement into oscillating movement of the cleaning elements through a limited arc. The translation of rotational to reciprocating movement is achieved through interaction of a cam follower in a helical track. The translation of reciprocating movement to oscillating movement is achieved through reciprocating movement of a volute through a mating groove in the head of the toothbrush.

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patent: 6581233 (2003-06-01), Cheng

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