Electric toothbrush

Details Electric toothbrush Electric toothbrush

1997-12-31

1999-11-23

Graham, Gary K.

Brushing, scrubbing, and general cleaning

Machines

Brushing

A61C 1700, A46B 1302

Patent

active

059876816

ABSTRACT:
An electric toothbrush with a handle, a brush head and a shank which connects the handle to the brush head. A rotary motor is arranged in the handle and drives an unbalanced mass. The unbalanced mass driven by the motor is supported on one side or on both sides in the shank close to the brush head and is driven via an extended drive shaft, preferably an intermediate shaft, by the motor.

REFERENCES:
patent: 3196299 (1965-07-01), Kott
patent: 3358309 (1967-12-01), Richardson
patent: 3685080 (1972-08-01), Hubner
patent: 4295240 (1981-10-01), Lex
patent: 4757806 (1988-07-01), Muchisky et al.
patent: 5421726 (1995-06-01), Okada
patent: 5471695 (1995-12-01), Aiyar
patent: 5590434 (1997-01-01), Imai
patent: 5706542 (1998-01-01), Okada
patent: 5784743 (1998-07-01), Shek

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