Electric toothbrushes

Details Electric toothbrushes Electric toothbrushes

1989-08-18

1991-02-05

Coe, Philip R.

Brushing, scrubbing, and general cleaning

Machines

Brushing

15 28, 433131, 74 99, A46B 1302

Patent

active

049892878

ABSTRACT:
An electric toothbrush has a reciprocating connecting rod in a brush member. The brush member is constructed as a brush head at its front end and has there two rows of rotatable bristle holders which each engage with a cam in a transversely running groove in the connecting rod. Rectilinear movement of the connecting rod leads to an alternating rotating movement of the bristle holders.

REFERENCES:
patent: 2215031 (1940-09-01), Elmore
patent: 3160902 (1964-12-01), Aymar
patent: 3193864 (1965-07-01), McKowsky
patent: 3478433 (1969-11-01), Richmond
patent: 4156620 (1979-05-01), Clemens
patent: 4432729 (1984-02-01), Fattaleh
patent: 4827550 (1989-05-01), Graham et al.
patent: 4845795 (1989-07-01), Crawford et al.

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