Toothbrush with concave brushing surface

Details Toothbrush with concave brushing surface Toothbrush with concave brushing surface

1996-04-24

1997-08-12

Scherbel, David

Brushing, scrubbing, and general cleaning

Implements

Brush or broom

152072, 15DIG5, A46B 904

Patent

active

056552491

ABSTRACT:
A toothbrush is described whose head has a different design in comparison to a conventional flat-trimmed toothbrush in that the heights of the bristles are arranged to create a concave cylindrical brushing surface at the free ends of bristles which has a curvature approximating that of a user's frontal dental arch. Moreover, the heights of the interior bristles at the inner rows are further shortened to follow a more concave cylindrical shape or to form a plane surface. The toothbrush of this design is an improvement to the conventional flat-trimmed toothbrush in terms of dental cleaning and gums stimulation but does not have the drawbacks of the designs found in the prior art.

REFERENCES:
patent: 1705542 (1929-03-01), Ryser
patent: 2043898 (1936-06-01), Malcolm
patent: 5065470 (1991-11-01), Diamond
patent: 5315731 (1994-05-01), Millar

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