Toothbrush

• US 6,886,207 B1
• Filed: 06/09/2000
• Issued: 05/03/2005
• Est. Priority Date: 06/14/1999
• Status: Expired due to Term

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Solanki, Sanjay Amratlal
• Primary Examiner(s): Till, Terrence R.
• Assistant Examiner(s): Balsis, Shay L
• Application Number:
  US09/979,933
• Time in Patent Office: 1,789 Days
• Field of Search: 601/141, 15186-187, 151/10, 151/671, 152/072, 15D/IG.5, 15D/IG.6, 151/88
• US Class Current: 15/110
• CPC Class Codes: A46B 15/00 Other brushes; Brushes with additional arrangements
• CPC Class Codes: A46B 15/0002 Arrangements for enhancing monitoring or controlling the brushing process
• CPC Class Codes: A46B 15/0032 with protrusion for polishing teeth
• CPC Class Codes: A46B 15/0075 Brushes with an additional massage device
• 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: A46B 9/028 Bristle profile, the end of the bristle defining a surface other than a single plane or deviating from a simple geometric form, e.g. cylinder, sphere or cone
• CPC Class Codes: A46B 9/04 Arranged like in or for toothbrushes
• CPC Class Codes: A46B 9/06 Arrangement of mixed bristles or tufts of bristles, e.g. wire, fibre, rubber
• CPC Class Codes: Y10S 15/06 Varied composition bristle

Abstract

The toothbrush of the present invention comprises an elongated handle having a head attached to one end. The head has a bristle-bearing face having longitudinal perimeter portions adjacent longitudinal edges and at least two perimetric, elastomeric massaging elements alternately arranged with groups of bristle tufts along each of the longitudinal perimeter portions. The brush can comprise further massaging elements which are not located along the longitudinal perimeter portions though the use of such additional elements is preferably minimised. The perimetric massaging elements have rotational symmetry through an angle of 120° or less, preferably being circular. The cross-sectional area proportion of elastomeric massaging elements to bristles on the brush head is less than 25%. Alternately there are four or fewer elastomeric massaging elements which are not perimetric massaging elements. A brush with both bristles and gum massaging elements arranged as set out above provides both cleaning and gum massaging benefits without creating an undesirable aesthetic impression derived from the use of rubber-like materials in the part of the brush head traditionally comprising only bristles.

Claims

1. A toothbrush having a proximal free end and a distal free end furthest from the proximal free end, comprising:

a skeleton comprising an elongated handle and a head attached to said elongated handle which terminates at the distal free end of the toothbrush, said head having a pair of sides, a top face having a plurality of bristle tufts disposed therein, and a back face opposed to said bristle-bearing face, wherein one of said plurality of bristle tufts is disposed at the distal free end of the toothbrush;

a pair of elastomeric support elements molded to a portion of said sides of said head and a plurality of perimetric elastomeric massaging elements integrally formed with each of said elastomeric support elements, said perimetric elastomeric massaging elements extending upward from each of said elastomeric support elements; and

wherein said elastomeric support elements cover a portion of said sides of said head and a portion of said back face of said head and wherein said head has a plurality of indentations which extend through said head from said top face to said back face and which facilitate securing said elastomeric support elements to said head and wherein said indentations are scallop-shaped.

2. The toothbrush according to claim 1, wherein said elastomeric support elements form a sheet which covers substantially all of said back face of said head.

3. The toothbrush of claim 1, wherein said plurality of indentations comprises a distinct indentation for each of said perimetric elastomeric massaging elements.

4. The toothbrush of claim 1, wherein said perimetric elastomeric massaging elements along each of said sides of said head are arranged in only a single row.

5. A toothbrush, comprising:

a skeleton comprising an elongated handle and a head attached to said elongated handle, said head having a pair of sides, a top face and a back face opposed to said top face;

a pair of elastomeric support elements molded to a portion of said sides of said head, and at least three perimetric elastomeric massaging elements integrally formed with each of said elastomeric support elements, said at least three perimetric elastomeric massaging elements extending individually upward from each of said elastomeric support elements; and

wherein each of said sides of said head have a plurality of indentations which facilitate securing said elastomeric support elements to said head and wherein a perimetric bristle tuft is disposed between adjacent indentations along said sides of said head and wherein said indentations are scallop-shaped.

6. The toothbrush of claim 5, wherein said indentations extend through said head from said top face to said back face.

7. The toothbrush of claim 5, wherein said plurality of indentations comprises a distinct indentation for each of said perimetric elastomeric massaging elements.

8. The toothbrush of claim 5, wherein said elastomeric support elements form a sheet which covers substantially all of said back face of said head.

9. The toothbrush of claim 5, wherein said perimetric elastomeric massaging elements along each of said sides of said head are arranged in only a single row.

10. A toothbrush having a proximal fee end and a distal free end furthest from the proximal free end, comprising:

a skeleton comprising an elongated handle and a head attached to said elongated handle which terminates at the distal free end of the toothbrush, said head having a pair of sides, a top face having a plurality of bristle tufts disposed therein, and a back face opposed to said bristle-bearing face, wherein one of said plurality of bristle tufts is disposed at the distal free end of the toothbrush;

a pair of elastomeric support elements molded to a portion of said sides of said head and a plurality perimetric elastomeric massaging elements integrally formed with each of said elastomeric support elements, said plurality of perimetric elastomeric massaging elements extending upward from each of said elastomeric support elements; and

wherein said elastomeric support elements cover a portion of said sides of said head and a portion of said back face of said head and wherein said head has a plurality of indentations which extend through said head from said top face to said back face and which facilitate securing said elastomeric support elements to said head and wherein said plurality of indentations comprises a distinct indentation for each of said perimetric elastomeric massaging elements.

11. The toothbrush according to claim 10, wherein said elastomeric support elements form a sheet which covers substantially all of said back face of said head.

12. The toothbrush according to claim 10, wherein said indentations are scallop-shaped.

13. The toothbrush of claim 10, wherein said perimetric elastomeric massaging elements along each of said sides of said head are arranged in only a single row.

14. A toothbrush, comprising:

a skeleton comprising an elongated handle and a head attached to said elongated handle, said head having a pair of sides, a top face and a back face opposed to said top face, wherein each of said sides have a plurality of longitudinally adjacent indentations and at least one outwardly extending extension formed between said plurality of longintudinally adjacent indentations;

a pair of elastomeric support elements molded to a portion of said sides of said head;

a perimetric elastomeric massaging element integrally formed with each of said elastomeric support elements, said perimetric elastomeric massaging element extending upward from each of said elastomeric support elements.

15. The toothbrush according to claim 14, further comprising a perimetric bristle tuft disposed within each of said extensions of said head of said skeleton.

16. The toothbrush according to claim 14, wherein said indentations are scallop-shaped.

17. The toothbrush according to claim 14, wherein said elastomeric support elements form a sheet which covers substantially all of said back face of said head.

18. The toothbrush according to claim 14, further comprising at least two pairs of perimetric elastomeric massaging elements, wherein said perimetric bristle tuft is disposed between said pairs of said perimetric elastomeric massaging elements.

19. The toothbrush according to claim 14, wherein each side comprises between three and five indentations.

20. The toothbrush according to claim 14, wherein each side comprises between two and four extensions.