Patent · US Expired

Bristle for a toothbrush

US6497458B2 · kind B2 · utility

9Cited by

10References

10Claims

0Family size

Assignee

The Braun Corporation · DE

Inventors

Scott Batson · Wakefield, US
Georges Driesen · Neu-Anspach, DE
Ahmet Firatli · Nordenstadt, DE
Rainer Hans · Bensberg, DE
Norbert Schaefer · Frankfurt am Main, DE
Armin Schwarz-Hartmann · Wendelsheim, DE
Mingchih M. Tseng · Hingham, US
Helge Zimmet · Waltham, US

Key dates

Filing date	Sep 10, 2001
Grant date	Dec 24, 2002
Priority date	—
Expiry date	Sep 10, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2969
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention is directed to a bristle (1) suitable for use in a brush (4) or the like, and in particular in a toothbrush. The bristle (1) is made of a plastic material and includes preferably a circular area of cross-section. When viewed in cross-section, the bristle (1) includes two sections (2, 3) with different properties. These sections (2, 3) are not in concentric relative arrangement. As a result, the bristle (1) curves along its longitudinal axis. The curvature produces an improved cleaning action of the brush (4).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.