Oral care implement

Patent metadata

Field	Value
Publication number	US-10426249-B2
Application number	US-201615254751-A
Country	US
Kind code	B2
Filing date	Sep 1, 2016
Priority date	Sep 1, 2016
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

An oral care implement that includes a handle and a head. A tuft of cleaning elements extends from the front surface of the head along an axis and includes a plurality of cleaning elements. In one embodiment, the cleaning elements may be formed of an elastomeric material. Furthermore, a sleeve may be coupled to the head and extend from the front surface of the head. The sleeve circumferentially surrounds a first portion of the tuft of cleaning elements and a second portion of the tuft of cleaning elements protrudes beyond a distal end of the sleeve. The sleeve may apply a radial compression force onto the first portions of the cleaning elements that are surrounded by the sleeves. The second portions of the cleaning elements may diverge as they extend from the distal end of the sleeve. The oral care implement may include sleeves of varying heights.

First claim

What is claimed is:

1. An oral care implement comprising:
a handle;
a head coupled to the handle and having a front surface;
a first tuft of cleaning elements extending from the front surface of the head along an axis and comprising a first plurality of cleaning elements formed of an elastomeric material;
a second tuft of cleaning elements extending from the front surface of the head and comprising a second plurality of cleaning elements formed of the elastomeric material;
a first sleeve coupled to the head and extending from the front surface of the head, the first sleeve circumferentially surrounding a first portion of the tuft of cleaning elements, a second portion of the tuft of cleaning elements protruding beyond a distal end of the sleeve, and the first sleeve having a first height measured from the front surface of the head to a distal end of the first sleeve; and
a second sleeve coupled to the head and extending from the front surface of the head, the second sleeve circumferentially surrounding a portion of the second tuft of cleaning elements, the second sleeve having a second height measured from the front surface of the head to a distal end of the second sleeve;
wherein the first and second heights are different when the first and second tufts of cleaning elements are in a resting state with no external forces applied.

2. The oral care implement according to claim 1 wherein the first sleeve applies a radial compression force onto the first portion of the first tuft of cleaning elements thereby causing the second portion of the first tuft of cleaning elements to diverge from the axis with increasing distance from the distal end of the first sleeve.

3. The oral care implement according to claim 2 wherein the first tuft of cleaning elements in an uncompressed state is defined by a reference circle having a first diameter, and wherein the first sleeve has an inner surface that defines a passageway within which the first tuft of cleaning elements are disposed, the passageway having a second diameter that is less than the first diameter of the reference circle of the first tuft of cleaning elements.

4. The oral care implement according to claim 2 wherein the first tuft of cleaning elements in an uncompressed state is defined by a reference circle having a first diameter, and when circumferentially surrounded by the first sleeve, has a second diameter at the distal end of the first sleeve and a third diameter at a distal end of the first tuft of cleaning elements, and wherein the third diameter of the first tuft of cleaning elements is greater than the second diameter of the first tuft of cleaning elements.

5. The oral care implement according to claim 1 wherein the first sleeve is formed of an elastomeric material.

6. The oral care implement according to claim 1 wherein the first plurality of cleaning elements are extruded from the elastomeric material, and wherein each of the first plurality of cleaning elements has an outer diameter between 0.25 mm and 1.0 mm.

7. The oral care implement according to claim 1 wherein the first plurality of cleaning elements extend a third height from the front surface of the head, the third height being at least twice the first height of the first sleeve.

8. An oral care implement comprising:
a handle;
a head coupled to the handle and having a front surface, at least one tuft hole formed into the front surface;
a first tuft of cleaning elements having a first portion positioned within the tuft hole and a second portion extending from the front surface of the head along an axis, the tuft of cleaning elements comprising a first plurality of cleaning elements formed of an elastomeric material; and
a second tuft of cleaning elements extending from the front surface of the head and comprising a second plurality of cleaning elements;
a first sleeve extending from the front surface of the head and surrounding the first tuft of cleaning elements, the first sleeve having a first height measured from the front surface of the head to a distal end of the first sleeve; and
a second sleeve extending from the front surface of the head and surrounding the second tuft: of cleaning elements, the second sleeve having a second height measured from the front surface of the head to a distal end of the second sleeve;
wherein the tuft hole applies a radial compression force onto the first portion of the first tuft of cleaning elements thereby causing the second portion of the first tuft of cleaning elements to diverge from the axis with increasing distance from the front surface of the head; and
wherein the first and second heights are different when the first and second tufts of cleaning elements are in a resting state with no external forces applied.

9. The oral care implement according to claim 8 wherein the tuft hole has a first diameter and the first tuft of cleaning elements has a second diameter in an uncompressed state, the second diameter being greater than the first diameter.

10. The oral care implement according to claim 8 wherein the first plurality of cleaning elements are extruded from the elastomeric material and each of the plurality of cleaning elements has an outer diameter between 0.25 mm and 1.0 mm.

11. An oral care implement comprising:
a handle;
a head coupled to the handle and having a front surface;
a first tuft of cleaning elements extending from the front surface of the head along a first axis and comprising a first plurality of cleaning elements;
a second tuft of cleaning elements extending from the front surface of the head along a second axis and comprising a second plurality of cleaning elements;
a first sleeve coupled to the head and extending from the front surface of the head, the first sleeve circumferentially surrounding a portion of the first tuft of cleaning elements, the first sleeve having a first height measured from the front surface of the head to a distal end of the first sleeve;
a second sleeve coupled to the head and extending from the front surface of the head, the second sleeve circumferentially surrounding a portion of the second tuft of cleaning elements, the second sleeve having a second height measured from the front surface of the head to a distal end of the second sleeve; and
wherein the first and second heights are different when the first and second tufts of cleaning elements are in a resting state with no external forces applied.

12. The oral care implement according to claim 11 wherein the first and second plurality of cleaning elements are each formed of an elastomeric material, and wherein the first and second plurality of cleaning elements each has a diameter between 0.25 nun and 1.0 mm.

13. The oral care implement according to claim 11 wherein the first sleeve circumferentially surrounds a first portion of the first tuft of cleaning elements and a second portion of the first tuft of cleaning elements protrudes beyond the distal end of the first sleeve, and wherein the second sleeve circumferentially surrounding a first portion of the second tuft of cleaning elements and a second portion of the second tuft of cleaning elements protrudes beyond the distal end of the second sleeve.

14. The oral care implement according to claim 13 wherein the first sleeve applies a radial compression force onto the first portion of the first tuft of cleaning elements so that the second portion of the first tuft of cleaning elements diverge from the first axis with increasing distance from the distal end of the first sleeve, and wherein the second sleeve applies a radial compression force onto the first portion of the second tuft of cleaning elements so that

Assignees

• Colgate Palmolive Co

Inventors

• Hohlbein Douglas Joseph
• Wong Chi Shing

Classifications

• A46D1/0238

  Bristles with non-round cross-section · CPC title

• A46B9/04 Primary

  {Arranged like in or} for toothbrushes · CPC title

• A46B3/20

  the bristles being fixed or joined in rubber bodies, e.g. in soft rubber · CPC title

• A46B1/00

  Brush bodies and bristles moulded as a unit · CPC title

• A46B9/028

  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 title