Dentistry – Method or material for testing – treating – restoring – or... – Cleaning
Patent
1997-06-03
1999-03-02
Chin, Randall E.
Dentistry
Method or material for testing, treating, restoring, or...
Cleaning
15105, 151671, A46B 904
Patent
active
058762078
ABSTRACT:
A toothbrush including a head, a tuft of bristles positioned at the head, a piezoelectric film disposed within the head in such a way that a force applied to the tuft of bristles generates voltage in the piezoelectric film, and an indicator for indicating that a predetermined level of voltage is being generated in the piezoelectric film. Preferably the tuft of bristles is able to "float" within the head of the toothbrush. The indicator is constructed to provide a signal that is perceivable by a user of the toothbrush (e.g., a visible signal or an audible signal).
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AMP Connections, "Duplicating Nature But Sensing the Difference".
McFadden Brendan P.
Sundius Carole L.
Chin Randall E.
Gillette Canada Inc.
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