Rotary toothbrush

Details Rotary toothbrush Rotary toothbrush

1990-07-16

1991-07-30

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

A46B 1302, A46B 904

Patent

active

050350200

ABSTRACT:
The conventional electric toothbrush includes a vibrating head or cylindrical brushes which rotate in one direction only. The toothbrush described herein includes a plurality of annular brushes which rotate in opposite directions to simulate the up and down brushing action of ordinary, manually operated toothbrushes.

REFERENCES:
patent: 1374181 (1921-04-01), Bohlman
patent: 1570465 (1926-01-01), D'Aprea
patent: 2758326 (1956-08-01), Keely et al.
patent: 4275749 (1981-06-01), Caroli

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