Circular toothbrush

Details Circular toothbrush Circular toothbrush

1974-12-10

1976-03-23

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Machines

Brushing

128 46, 310 80, A46B 1302

Patent

active

039450767

ABSTRACT:
A circularly movable mechanical toothbrush having a fly wheel type drive shaft loosely joined to a rod near one edge thereof. Actuation of the fly wheel causes the rod to rotate in a distinct motion that causes toothbrush bristles to be maintained at all times toward selected teeth, which motion compactingly massages gums during a gradual approach stroke, aligns the bristles with tooth striations and interdental spaces during a sweeping brush stroke, and keeps the bristles disposed away from the user's cheek during a return stroke.

REFERENCES:
patent: 795213 (1905-07-01), Fitz
patent: 807299 (1905-12-01), Marshall
patent: 816506 (1906-03-01), Shelton
patent: 873123 (1907-12-01), Gardy
patent: 1102885 (1914-07-01), Dorment
patent: 2439262 (1948-04-01), Nalbach et al.
patent: 3046584 (1962-07-01), Wepfer
patent: 3104405 (1963-09-01), Perrinjaquet
patent: 3133297 (1964-05-01), Gerber et al.
patent: 3702487 (1972-11-01), Sung

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