Toothbrush with tuned vibrating head

Details Toothbrush with tuned vibrating head Toothbrush with tuned vibrating head

2003-06-24

2008-08-12

Graham, Gary K (Department: 3723)

Brushing, scrubbing, and general cleaning

Machines

Brushing

C433S122000

Reexamination Certificate

active

07409741

ABSTRACT:
A toothbrush provides a head with bristles, a neck and a handle. An eccentrically rotational weight is engaged for rotation with a motor, the weight disposed within the head. The motor is disposed within the handle. The head and neck are integrally formed with a natural resonance frequency of vibration approximately equal to the rotational speed of the motor and synchronized therewith.

REFERENCES:
patent: 3685080 (1972-08-01), Hubner
patent: 5165131 (1992-11-01), Staar
patent: 5189751 (1993-03-01), Giuliani et al.
patent: 5247716 (1993-09-01), Bock
patent: 5421726 (1995-06-01), Okada
patent: 5651157 (1997-07-01), Hahn
patent: 5706542 (1998-01-01), Okada
patent: 5718667 (1998-02-01), Sugimoto et al.
patent: 5987681 (1999-11-01), Hahn et al.
patent: 6421865 (2002-07-01), McDougall
patent: 6421866 (2002-07-01), McDougall

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