Twin-brushes rotary toothbrush

Details Twin-brushes rotary toothbrush Twin-brushes rotary toothbrush

1987-05-11

1988-08-30

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

15 28, A46B 1308

Patent

active

047666307

ABSTRACT:
Rotary toothbrush utilizes a longitudinally extending hollow barrel having a fore-end and a rear-end. Longitudinally extending and reciprocatable strokearm mechanism is predominately located within the hollow barrel but includes a forward-portion always located forwardly of the barrel. A pair of transversely separated, upright rotary brushes are positioned wholly forwardly of the barrel and there eccentrically journal crankshafts carried by the strokearm mechanism forward-portion so that strokearm reciprocations cause the two brushes to move together in alternating angular directions. The strokearm mechanism forward-portion might be provided with auxiliary bristles for simultaneously brushing the dental occlusial surfaces as the rotary brushes treat the bucal and lingual surfaces.

REFERENCES:
patent: 4048690 (1977-09-01), Wolfson

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