Powered toothbrush with vibrating section

• US 6,889,401 B2
• Filed: 03/26/2002
• Issued: 05/10/2005
• Est. Priority Date: 03/26/2002
• Status: Expired due to Fees

• Current Assignee: Colgate-Palmolive Company
• Original Assignee: Colgate-Palmolive Company
• Inventors: Moskovich, Robert, Fattori, Joseph Edward
• Primary Examiner(s): Jones, Deborah
• Assistant Examiner(s): Bahta, Abraham
• Application Number:
  US10/107,093
• Publication Number:
  US 20030182744A1
• Time in Patent Office: 1,141 Days
• Field of Search: 15/28, 15/221, 15/222
• US Class Current: 15/22.1
• CPC Class Codes: A46B 13/02 power-driven carriers
• CPC Class Codes: A46B 2200/1066 Toothbrush for cleaning the teeth or dentures A61C17/16 takes precedence; bristles arrangements for toothbrushes A46B9/04
• CPC Class Codes: A61C 17/222 Brush body details, e.g. the shape thereof or connection to handle
• CPC Class Codes: A61C 17/26 driven by electric motor
• CPC Class Codes: A61C 17/3436 Rotation around the axis perpendicular to the plane defined by the bristle holder
• CPC Class Codes: A61C 17/3463 Translation along the axis perpendicular to the plane defined by the bristle holder
• CPC Class Codes: A61C 17/349 with multiple brush bodies

Abstract

The head of a toothbrush includes a tuft block having bristles wherein the tuft block is moved in a direction parallel to the outer surface of the head. A second tuft block having bristles is a vibrating section which is moved in and out in a direction perpendicular to the outer surface of the head. If desired, the head may also include a fixed section with fixed bristles. The movement of the first tuft block may be an oscillating rotational movement.

Claims

1. A powered toothbrush comprising a handle with a neck, a head mounted to said neck, said head having an exposed outer surface, a first tuft block mounted to a fixed section of said head, said first tuft block having bristles extending outwardly from said exposed outer surface, a first drive structure operatively connected to said first tuft block for moving said first tuft block in a plane generally parallel to said exposed outer surface, a second tuft block mounted within said fixed section of said head, at least a portion of said second tuft block being aligned with an opening in said exposed outer surface said second tuft block having bristles extending outwardly from said exposed outer surface, and said second tuft block being mounted for moving in a direction generally perpendicular to said exposed outer surface within said opening.

2. The toothbrush of claim 1 wherein said second tuft block oscillates in an in and out direction perpendicular to said outer surface to comprise a vibrating section.

3. The toothbrush of claim 2 wherein said second tuft block is free floating within said fixed section of said head.

4. The toothbrush of claim 2 including second drive structure operatively connected to said second tuft block for moving said second tuft block.

5. The toothbrush of claim 2 wherein said first tuft block is moved back and forth in an oscillating manner.

6. The toothbrush of claim 5 wherein said first tuft block is oscillated in a rotational direction.

7. The toothbrush of claim 6 wherein said head includes a fixed section having bristles.

8. The toothbrush of claim 7 wherein said fixed section completely surrounds said second tuft block.

9. The toothbrush of claim 8 wherein said bristles on said fixed section completely surround said second tuft block.

10. The toothbrush of claim 4 wherein said first drive structure and said second drive structure are part of the same drive mechanism.

11. The toothbrush of claim 10 wherein said drive mechanism includes a motor driven shaft, said shaft having a drive end which drives said first tuft block, and said shaft having a cam surface which drives said second tuft block.

12. The toothbrush of claim 7 wherein said bristles on said first tuft block extend outwardly from said outer surface the same distance as said bristles on said second tuft block when said second tuft block is in its outermost position.

13. The toothbrush of claim 12 wherein said first tuft block has a circular outer surface.

14. The toothbrush of claim 13 wherein said second tuft block is a disc with a circular outer surface and an outwardly extending shoulder.

15. The toothbrush of claim 1 wherein said head includes a fixed section having bristles.

16. The toothbrush of claim 15 wherein said fixed section completely surrounds said second tuft block, and said bristles on said fixed section completely surround said second tuft block.

17. The toothbrush of claim 15 wherein at least some of said bristles on said fixed section are fixed bristles.

18. The toothbrush of claim 15 wherein at least some of said bristles on said fixed section are embedded in an elastomeric material to have independent motion.

19. The toothbrush of claim 1 wherein said bristles on said first tuft block extend outwardly from said outer surface the same distance as said bristles on said second tuft block when said second tuft block is in its outermost position.

20. The toothbrush of claim 1 wherein at least some of said bristles are natural bristles.

21. The toothbrush of claim 1 wherein at least some of said bristles are made of elastomeric material.

22. The toothbrush of claim 20 wherein at least some of said bristles made of elastomeric material are in the form of fingers.

23. The toothbrush of claim 1 wherein a third tuft block is mounted within and separate from said first tuft block, and said third tuft block being moved in a direction generally parallel to said outer surface.

24. A powered toothbrush having a handle with a neck, a head mounted to said neck, said head having an exposed outer surface, a first tuft block mounted to a fixed section of said head, said first tuft block having bristles extending outwardly from said exposed outer surface, a first drive structure operatively connected to said first tuft block for moving said first tuft block in a plane generally parallel to said exposed outer surface, said fixed section of said head containing a plurality of fixed tufts of bristles extending from said exposed outer surface, a second tuft block mounted within and separate from said fixed section, at least a portion of said second tuft block being aligned with an opening in said exposed outer surface, said second tuft block having bristles extending outwardly from said exposed outer surface, said fixed tufts of bristles at least partially surrounding said second tuft block, and second drive structure operatively connected to said second tuft block for moving said second tuft block in a plane generally parallel to said outer surface and within said opening in said exposed outer surface.

25. The toothbrush of claim 24 including a third tuft block mounted to said head, said third tuft block having bristles extending outwardly from said exposed outer surface, and said third tuft block being movable in a direction generally parallel to said outer surface.