Toothbrush having non-slip surface

• US 5,339,482 A
• Filed: 07/21/1992
• Issued: 08/23/1994
• Est. Priority Date: 07/21/1992
• Status: Expired due to Term

• Current Assignee: Johnson and Johnson Consumer Products Inc (Johnson & Johnson)
• Original Assignee: Johnson and Johnson Consumer Products Inc (Johnson & Johnson)
• Inventors: Desimone, Joseph A., Goldinger, Richard A.
• Primary Examiner(s): Simone, Timothy F.
• Assistant Examiner(s): Brinson, Patrick F.
• Application Number:
  US07/918,717
• Time in Patent Office: 763 Days
• Field of Search: 15/167.1, 15/167.2, 15/143.1, 15/110, 15/160, D 4/104, 81/22, 81/489
• US Class Current: 15/167.1
• 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 5/02 specially shaped for holding by the hand
• CPC Class Codes: A46B 5/026 Grips or handles having a nonslip section
• CPC Class Codes: B25G 1/102 the shape being specially adapted to facilitate handling or improve grip
• CPC Class Codes: B29L 2031/425 Toothbrush
• CPC Class Codes: Y10S 16/19 Cast or molded handles

Abstract

A toothbrush having a non-slip region on its handle to facilitate better manipulation of the brush is disclosed. An insert having a surface with raised ribs is formed in a separate molding operation and then inserted within an aperture formed in the toothbrush handle. A method for manufacturing the toothbrush is also disclosed.

Claims

1. A toothbrush comprising:

a handle having a first handle surface and an opposed handle surface;

a bristled head connected to said handle;

an aperture disposed through said handle, from said first handle surface to said opposed handle surface, said aperture being defined by an aperture peripheral wall generally transverse to said handle surfaces and having an insert therein;

said insert having a first non-slip insert surface forming a non-slip region on the first handle surface, an opposed insert surface being disposed essentially co-planar with the opposed handle surface, and an insert peripheral wall generally transverse to said insert surfaces;

said aperture wall having an aperture shoulder extending into the aperture;

said insert having an insert shoulder extending into the aperture;

said shoulders being in face-to-face relationship and bearing against each other to resist a force attempting to translate the insert out of the aperture.

2. The toothbrush of claim 1 wherein said insert shoulder faces toward said opposed handle surface and said aperture shoulder faces toward said first handle surface whereby said shoulders resist a force attempting to translate the insert out of the aperture in a direction from the first handle surface to the opposed handle surface but not in an opposite direction.

3. The toothbrush of claim 2 wherein said aperture further comprises a bridging portion extending across the aperture and joining opposed portions of the aperture peripheral wall, said bridging portion bearing against the first non-slip insert surface to resist a force attempting to translate the insert out of the aperture in the direction of from the opposed handle surface to the first handle surface.

4. The toothbrush of claim 1 wherein said insert comprises a compressible material and is compression-fit within said aperture.

5. The toothbrush of claim 1 wherein said opposed insert surface is also a non-slip surface.

6. The toothbrush of claim 1 wherein said handle comprises a plurality of apertures and inserts.

7. A toothbrush comprising:

a handle having a first handle surface and an opposed handle surface;

a bristled head connected to said handle;

an aperture disposed through said handle, from said first handle surface to said opposed handle surface, said aperture being defined by an aperture peripheral wall generally transverse to said handle surfaces and having an insert therein;

said insert having a first non-slip insert surface forming a non-slip region on the first handle surface, an opposed insert surface being disposed essentially co-planar with the opposed handle surface, and an insert peripheral wall generally transverse to said insert surfaces;

said toothbrush having securing means for securing said insert within said aperture, said securing means comprising an interlocking region on the peripheral wall of the insert and an interlocking region on the peripheral wall of the aperture;

wherein one of said interlocking regions is a recess, recessed from the aperture and the other is a projection, projecting into the aperture;

said recess and said projection cooperating to bear against each other and resist any force tending to translate the insert out of the aperture.

8. The toothbrush of claim 7 wherein said aperture further comprises a bridging portion extending across the aperture and joining opposed portions of the aperture peripheral wall, said bridging portion bearing against the first non-slip insert surface to resist a force attempting to translate the insert out of the aperture in the direction of from the opposed handle surface to the first handle surface.

9. The toothbrush of claim 7 wherein said insert comprises a compressible material and is compression-fit within said aperture.

10. The toothbrush of claim 7 wherein said opposed insert surface is also a non-slip surface.

11. The toothbrush of claim 7 wherein said handle comprises a plurality of apertures and inserts.