Electric toothbrush

Details Electric toothbrush Electric toothbrush

1990-01-05

1991-06-04

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

151765, A46B 1302

Patent

active

050201794

ABSTRACT:
An electric toothbrush comprises a manually guided handle and a brush member having a brush head with a plurality of separately rotating bristle holders which are connected in the brush head to gearing driving them. The bristle holders are mounted in an insert which is insertable into the brush head in a releasable manner so as to be easily exchangeable by the user. Each of the bristle holders has a coupling element in the form of a cam which is insertable, by way of a plug-in connection, in a respective groove in a connecting rod which is connected to a drive means in the handle.

REFERENCES:
patent: 2215031 (1940-09-01), Elmore
patent: 3160902 (1964-12-01), Aymar
patent: 3193864 (1965-07-01), Makowsky
patent: 3478433 (1969-11-01), Richmond
patent: 4156620 (1979-05-01), Clemens
patent: 4432729 (1984-02-01), Fattaleh
patent: 4545087 (1985-10-01), Nahum
patent: 4827550 (1989-05-01), Graham et al.
patent: 4845795 (1989-07-01), Crawford et al.
Getriebetechnik Lehrbuch, Volmer et al., pp. 53-55 and 72-73.

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