# US 7,607,190 B2 · Toothbrush

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- Number: US 7,607,190 B2
- Document ID: US7607190B2
- Status: Granted
- Kind: B2
- Application number: 11/781,589
- Filed: 2007-07-23
- Published: 2008-10-16
- Granted: 2009-10-27
- Earliest claimed: 2002-08-09
- Assignees: Colgate-Palmolive Company
- Inventors: Robert Moskovich; Jouchim Storz; Tanja Langgner; Thomas Kuchler
- Web page: https://patentgrep.com/patent/US7607190B2

## CPC

- A46B 7/06: movably during use {, i.e. the normal brushing action causing movement (driven brush bodies A46B13/00)}
- A46B 2200/1066: Toothbrush for cleaning the teeth or dentures (A61C17/16 takes precedence; bristles arrangements for toothbrushes A46B9/04)
- A46B: BRUSHES (handles not integral with brushware B25G)

## Abstract

A toothbrush comprises a handle and a head. The head includes a first section having cleaning elements extending outwardly from its outer surface. A ball joint is mounted to the head adjacent to the first section. The ball joint also includes cleaning elements extending outwardly from the outer surface. The head includes resilient material urging the ball joint so be in its initial position after the pivotal movement of the ball joint cleaning elements.

## Claims

### Claim 1

A toothbrush comprising:
a handle,
an elongated head mounted to said handle, said head having an outer surface, fixed cleaning elements mounted to said head and extending outwardly from said outer surface,
movable cleaning elements mounted to said head by at least one movable carrier and extending outwardly from said outer surface, the carrier being connected by a stem to a joint that is pivotally received in a socket located recessed below the outer surface of the head, wherein said movable cleaning elements can be pivoted away from an initial position generally perpendicular to a longitudinal axis of the head in response to said movable cleaning elements contacting the teeth of the user causing pivotal movement of the joint in the socket, wherein the carrier is disposed above the outer surface;
a resilient material between said outer surface of said head and the carrier, the resilient material contacting a bottom surface of the carrier and the outer surface of the head, the resilient material surrounding the stem and biasing the movable cleaning elements in the initial positions, and
wherein a portion of said joint is exposed from a surface of an underside of the head that is opposite the outer surface, wherein the socket is formed in a recess in the surface of the underside of the head opposite the outer surface of the head.

### Claim 2 (depends on 1)

The toothbrush of claim 1, wherein the joint is snapped in the socket.

### Claim 3 (depends on 1)

The toothbrush of claim 1, wherein the carrier, stem and joint are integral.

### Claim 4 (depends on 3)

The toothbrush of claim 3, wherein the integral stem and joint extend completely through said head from said outer surface to said underside.

### Claim 5 (depends on 1)

The toothbrush of claim 1 wherein the carrier is disposed above the outer surface so that a gap exists between the carrier and the outer surface of the head, the resilient material filling the gap so as to be in contact with the carrier and the outer surface of the head.

### Claim 6

A toothbrush comprising:
a handle;
a head mounted to said handle;
a platform having cleaning elements extending from a top surface, the platform mounted to said head by a stem having a joint that is pivotally received in a socket located in the head, the platform disposed in a spaced manner from the head so that a gap exists between a bottom surface of the platform and the head;
resilient material filling the gap between the head and the bottom surface of the platform, the resilient material surrounding the stem and biasing the movable cleaning elements in an initial position; and
wherein a portion of said joint is exposed from a bottom surface of the head, wherein the socket is formed in a recess in the bottom surface of the head.

### Claim 7 (depends on 6)

The toothbrush of claim 6 wherein the resilient material has a convex upper surface, and wherein the bottom surface of the platform is concave, the convex upper surface of the resilient material contacting the concave bottom surface of the platform.

### Claim 8 (depends on 7)

The toothbrush of claim 7 wherein the resilient material is an elastomeric material.

### Claim 9 (depends on 8)

The toothbrush of claim 8 wherein the joint is a ball joint.

### Claim 10 (depends on 6)

The toothbrush of claim 6 wherein the platform, the stem and the joint are integral and formed of a material that is harder than the resilient material.