Brush head assembly of an electric toothbrush

Details Brush head assembly of an electric toothbrush Brush head assembly of an electric toothbrush

1996-07-23

1997-04-08

Graham, Gary K.

Brushing, scrubbing, and general cleaning

Machines

Brushing

15 224, A61C 1734

Patent

active

056176031

ABSTRACT:
The present invention provides a staggered swing brush head assembly of an electric toothbrush. There are two swing bodies adjoin in the head part of the toothbrush by a swing bar. They can wobble to the opposite direction as the rear swing body is driven to swing by an eccentric cam of a drive rod. By this means the vibration force of the electric toothbrush can be eliminated to the less, and the action of the brush hair is in accord with the correct method of cleaning tooth. On the other hand, the rotating drive rod with the threaded blade drives the water and the powder infiltrating into the shell trunks out through the slots under the centrifugal effect.

REFERENCES:
patent: 4545087 (1985-10-01), Naham
patent: 5020179 (1991-06-01), Scherer
patent: 5504959 (1996-04-01), Yakawa et al.
patent: 5524312 (1996-06-01), Tan et al.

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