Toothbrush with hexagonal bristles in hexagonal tuft holes

Details Toothbrush with hexagonal bristles in hexagonal tuft holes Toothbrush with hexagonal bristles in hexagonal tuft holes

1996-01-25

1998-12-22

Spisich, Mark

Brushing, scrubbing, and general cleaning

Implements

Brush or broom

151671, 152072, A46B 316

Patent

active

058506608

ABSTRACT:
A toothbrush with a bristle head that has densely packed hexagonal tuft holes and hexagonal cross section bristles exhibits increased bristle retention. The increased bristle retention is achieved by increasing the anchored length of the tuft staple without increasing the overall length of the staple. Where the hexagonal tuft holes are of the same area as conventional round tuft holes, and the anchoring staples are of the conventional length, the "anchored" length of the staple is increased by 25%. Bristle retention is further increased by the increased friction of the flat surfaces of hexagonal bristles against each other and against the flat surfaces of hexagonal tuft holes.

REFERENCES:
patent: 2317485 (1943-04-01), Rider
patent: 4617695 (1986-10-01), Amos et al.

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