Patent · US Expired

Bristle for a toothbrush

US6141819A · kind A · utility

22Cited by

18References

47Claims

0Family size

Assignee

The Braun Corporation · DE

Inventors

Georges Driesen · Neu-Anspach, DE
Ahmet Firatli · Nordenstadt, DE
Rainer Hans · Bensberg, DE
Norbert Schaefer · Frankfurt am Main, DE
Armin Schwarz-Hartmann · Wendelsheim, DE

Key dates

Filing date	Apr 1, 1999
Grant date	Nov 7, 2000
Priority date	—
Expiry date	Apr 1, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2978
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The invention is directed to a bristle (12) for a toothbrush, in particular for an electric toothbrush, which is made of plastic and includes several filaments (13, 14, 15) joined together. The filaments (13, 14, 15) are wound or braided and joined together as a result of the action of chemical agents. This results in a firm bond between the filaments (13, 14, 15), and any cavities between the filaments (13, 14, 15) are reliably avoided. Overall, a toothbrush results which, in addition to having a high cleaning effect, offers bacteria or other germs no possibility of infiltration.

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