Brushing – scrubbing – and general cleaning – Machines – Brushing
Patent
1993-05-12
1994-05-17
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Machines
Brushing
433216, A61C 1734, A46B 1302
Patent
active
053116321
ABSTRACT:
A device for removing plaque from teeth comprises a toothbrush having a thick, cylindrical, hollow handle in which are located an electric motor actuable to cause rotation of an eccentrically mounted member and vibration of the entire device, and an ultrasonic transducer actuable to produce high frequency sound waves along the brush. The combination of brush vibration and ultrasound loosens and removes plaque from the teeth.
REFERENCES:
patent: 3466689 (1969-09-01), Aurelio et al.
patent: 3685080 (1972-08-01), Hubner
patent: 5150492 (1992-09-01), Suroff
patent: 5247716 (1993-09-01), Bock
Miller Richard L.
Roberts Edward L.
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