Electric toothbrush

Details Electric toothbrush Electric toothbrush

1995-05-12

1996-04-09

Roberts, Jr., Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

74 22R, A61C 1734, A46B 1302

Patent

active

055049605

ABSTRACT:
A handle component (1) of an electric toothbrush protrudes from the end of a hollow shaft (3), which holds a drive shaft (9) coaxially therein. A brush attachment (4) with rotatable bristle tufts (6) is disposed on the hollow shaft (3) in such a way that the drive shaft (9) is coupled with a shaft (7) in the brush attachment (4), wherein said shaft (7) drives the bristle tufts (6). The hollow shaft (3) is driven by a motor to oscillate around its longitudinal axis and to slide back and forth in the direction of its longitudinal axis.

REFERENCES:
patent: 4156620 (1979-05-01), Clemens
patent: 4603448 (1986-08-01), Middleton et al.
patent: 4989287 (1991-02-01), Scherer
patent: 5020179 (1991-06-01), Scherer
patent: 5077855 (1992-01-01), Ambasz

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