Patent · US Expired

Method for producing brushes and apparatus for performing said method

US6808236B2 · kind B2 · utility

1Cited by

1References

6Claims

0Family size

Assignee

M+C Schiffer GmbH · DE

Inventors

Andreas Lanvers · Bad Honnef, DE
Erwin Buchholz · Eitorf, DE
Armin Seifert · Neuwied, DE

Key dates

Filing date	Jun 20, 2002
Grant date	Oct 26, 2004
Priority date	—
Expiry date	Oct 9, 2022

Classification

Technology area (CPC A)Human Necessities
CPC primaryA46D9/02
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method for producing toothbrushes by way of injection molding is provided, wherein a brush body is formed in a mold cavity, bristle filaments are connected to the brush body for forming bristles, and at least one flexible element extending substantially in parallel with the bristle filaments is preferably formed by injection onto the brush body. The contouring and/or finishing of the bristle filaments can be carried out without any impairment by the flexible cleaning elements. During the finishing operation, the flexible cleaning element is removed from the operative area of the finishing tool.

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