US 6,786,558 B2Granted

Brush head and method of manufacturing such a brush head

AssigneeBraun GmbH

InventorsGeorges Driesen, Thomas Fritsch, Armin Schwarz-Hartmann

Life of this patent

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Abstract

The present invention is directed to a brush head, particularly a toothbrush head, and to a method of manufacturing such a brush head. The brush head includes a bristle carrier and bristles fixedly secured thereto, said bristle carrier having a slot-type recess in which a multiplicity of bristles is received forming an elongated tuft with a closed, smooth outer contour corresponding essentially to the contour of the slot-type recess. According to the invention the brush head is characterized in that the slot-type recess is divided by means of at least one transverse wall into several segments, a separate tuft is inserted and secured in each of the segments, and the at least one transverse wall is constructed so that the separate tufts converge, forming in combination the elongated tuft with a closed, smooth outer contour.

Claims19

Dependent claims

A method of manufacturing a toothbrush head, comprising the steps of:

providing a bristle carrier having an outwardly directed surface and defining at least one recess therein adapted to receive a plurality of bristle tufts formed for cleaning an oral cavity of a user,
providing at least one narrow partition formed separate from said bristle carrier,
inserting at least one said partition into said recess and thereby dividing said recess into a plurality of successive recess segments,
providing at least first and second bristle tufts,
anchoring with a first anchor said first bristle tuft into a first said segment,
anchoring with a second anchor said second bristle tuft into a second said segment closely adjacent said first bristle tuft, and
converging bristles of adjacent said first and second tufts in a region above said partition whereby adjoining said bristle tufts collectively present a tuft having a substantially closed outer contour.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/742,433Filed 19 Dec 2003 · division
Priority: DE 100 15 06225 Mar 2000
Published: US 2004/0130203 A18 Jul 2004
Granted: 7 Sep 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

A61C 17/222
With brushes, cushions, cups, or the like: brush body details, e.g. the shape thereof or connection to handle
A46B 3/08
Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier: by clamping
A61C
Dentistry
A46B
Brushes

Family

Application09/813,524Parent of this division · filed 21 Mar 2001
US 6,665,901 B2Parent of this division · filed 23 Dec 2003
US 2004/0130203 A1Pre-grant publication · published 8 Jul 2004
US 2001/0023516 A1Published application
US 6,786,558 B2This patent

From the US filing history. Foreign family members aren’t listed.