Brush section for a powered toothbrush

• US 7,185,383 B2
• Filed: 09/02/2005
• Issued: 03/06/2007
• Est. Priority Date: 09/27/2002
• Status: Expired due to Term

• Current Assignee: Colgate-Palmolive Company
• Original Assignee: Colgate-Palmolive Company
• Inventors: Gatzemeyer, John J., Eliav, Eyal
• Primary Examiner(s): CHIN, RANDALL E
• Application Number:
  US11/218,839
• Publication Number:
  US 20060000038A1
• Time in Patent Office: 550 Days
• Field of Search: 15/221, 15/222, 15/28
• US Class Current: 15/28
• CPC Class Codes: A61C 17/3436 Rotation around the axis perpendicular to the plane defined by the bristle holder
• CPC Class Codes: A61C 17/349 with multiple brush bodies

Abstract

A brush section for use in a powered toothbrush, and a powered toothbrush utilizing the brush section are provided. The brush section has a generally disk shaped carrier from which extends at least one finger that has oral care elements, i.e., bristles and elastomeric cleaning members, extending outwardly therefrom to provide increased contact area between the oral care cleaning elements and oral gingival tissue for enhanced massaging thereof.

Claims

1. A brush section for a powered toothbrush having a drive device, the brush section comprising:

a carrier having a first tooth care element region including a face and at least one tooth care element extending from said face;

the carrier further comprising a second tooth care element region extending longitudinally from said first tooth care element region, said second tooth care element region being arcuate shaped substantially downward in the direction of a neck portion and includes at least one elastomeric tooth care element extending therefrom;

wherein said first and second tooth care element regions move in the same path of motion; and

wherein said carrier is driven to oscillate about a pivot axis that extends perpendicular to said face of said first tooth care element region.

2. The brush section of claim 1, wherein the carrier is generally egg-shaped.

3. The brush section of claim 1, wherein the first tooth care element region has a planar surface and the second tooth care element region has a sloped surface.

4. The brush section of claim 1, further comprising a head, wherein the head includes a carrier support platform disposed below the carrier.

5. The brush section of claim 1, wherein the second tooth care elements-region comprises a plurality of elastomeric fingers that are angled relative to the at least one tooth care element of the first tooth care element region.

6. The brush section of claim 1, wherein the tooth care elements comprise at least one upstanding elastomeric wall.

7. The brush section of claim 6, wherein the at least one upstanding elastomeric wall comprises a plurality of spaced elastomeric walls.

8. The brush section of claim 7, wherein the plurality of elastomeric walls have different heights.

9. The brush section of claim 1, wherein the first tooth care element region comprises a plurality of bristle tufts.

10. The brush section of claim 1, wherein at least one of the first and second tooth care element regions includes a plurality of elastomeric fingers.

11. The brush section of claim 1, wherein the face extends across both of the first and second tooth care element regions.

12. The brush section of claim 11, wherein said face has a non-circular or non-oval shape.

13. The brush section of claim 1, wherein said second tooth care element region is in the form of a finger member extending longitudinally from the first tooth care element region to the proximal end.

14. A powered toothbrush comprising:

a handle having a distal end and a brush section provided at a proximal end, the brush section further comprising a carrier having a first tooth care element region including a face and at least one tooth care element extending from said face;

the carrier further comprising a second tooth care element region extending longitudinally from said first tooth care element region, said second tooth care element region being arcuate shaped substantially downward in the direction of a neck portion and including at least one elastomeric tooth care element extending therefrom;

wherein said first and second tooth care element regions move in the same path of motion; and

wherein said carrier is driven by a drive device to oscillate about a pivot axis that extends perpendicular to said face of said first tooth care element region.

15. The powered toothbrush of claim 14, further comprising a head, wherein the head includes a carrier support platform disposed below the carrier, the carrier support platform having an opening formed therein for receiving a base section of the carrier which engages the drive device for driving the carrier.

16. The powered toothbrush of claim 15, wherein the base section is attached at one end to the face of the carrier and an opposite end extends below the carrier support platform through the opening formed therein.

17. The powered toothbrush of claim 14, wherein the drive device further comprises a drive shaft, and wherein an underside of the second tooth care element region of the carrier has a hollow section to accommodate movement of the drive shaft.

18. The powered toothbrush of claim 14, further comprising a head, wherein the head includes a carrier support platform disposed below the carrier.

19. The powered toothbrush of claim 18, wherein the base section is attached at one end to the face of the carrier and an opposite end extends below the carrier support platform through the opening formed therein.

20. The powered toothbrush of claim 14, wherein the second tooth care elements region comprises a plurality of elastomeric fingers that are angled relative to the at least one tooth care element of the first tooth care element region.

21. The powered toothbrush of claim 14, wherein the tooth care elements comprise at least one upstanding elastomeric wall.

22. The powered toothbrush of claim 21, wherein the at least one upstanding elastomeric wall comprises a plurality of spaced elastomeric walls.

23. The powered toothbrush of claim 22, wherein the plurality of elastomeric walls have different heights.

24. The powered toothbrush of claim 14, wherein at least one of the first and second tooth care element regions includes a plurality of elastomeric fingers.