Brush with fluid delivery

Patent metadata

Field	Value
Publication number	US-10681976-B2
Application number	US-201516066016-A
Country	US
Kind code	B2
Filing date	Dec 28, 2015
Priority date	Dec 28, 2015
Publication date	Jun 16, 2020
Grant date	Jun 16, 2020

Abstract

A toothbrush includes a handle, a head at a distal end of the handle comprising a bristle plate, a hole extending through the bristle plate, a plurality of bristles at least partially disposed in the hole and extending from the hole in a direction away from the head, and a reservoir in fluid communication with the hole. Fluid in the reservoir enters the tuft holes and is wicked out of the head of the toothbrushes by capillaries formed between the bristles.

First claim

What is claimed is:

1. A toothbrush comprising:
a handle;
a head at a distal end of the handle and comprising a bristle plate;
a hole extending through the bristle plate;
a plurality of bristles at least partially disposed in the hole and extending from the hole in a direction away from the head; and
a reservoir in fluid communication with the hole;
wherein the plurality of bristles is supported on a melt matte is disposed on a side of the bristle plate opposite a side from which the plurality of bristles extend.

2. The toothbrush of claim 1 , wherein the plurality of bristles comprise a bristle tuft.

3. The toothbrush of any claim 1 , further comprising a conduit fluidly connecting the reservoir to the hole.

4. The toothbrush of claim 1 , wherein at least a portion of the reservoir is disposed in the handle.

5. The toothbrush of claim 1 , further comprising a valve disposed between the reservoir and the hole.

6. The toothbrush of claim 1 , wherein the melt matte is porous and the melt matte is in fluid communication with the reservoir.

7. The toothbrush of claim 1 , further comprising a dentifrice or other oral care fluid in the cavity.

8. The toothbrush of claim 1 , further comprising:
a pair of electrodes disposed in the cavity; and
a power source arranged to provide an electrical potential between the pair of electrodes.

9. The toothbrush of claim 1 , further comprising a wick disposed in the reservoir.

10. The toothbrush of claim 9 , wherein the wick extends into the handle.

11. The toothbrush of claim 9 , wherein the wick is movable between a first position contacting the bristles and a second position spaced from the bristles.

12. The toothbrush of claim 9 , wherein the wick has a cross-section comprising a flat portion and an arcuate portion and is selectively rotatable about an axis between a first position in which the arcuate portion of the wick contacts the bristles and a second position in which the arcuate portion of the wick is spaced from the bristles.

13. A brush comprising:
a handle;
a head at a distal end of the handle, the head comprising a housing having an inner surface at least partially defining a cavity and an outer surface spaced from the inner surface;
a plurality of holes extending from the outer surface of the housing to the inner surface of the housing; and
a tuft of bristles associated with each of the plurality of holes, the tuft of bristles disposed partially in a respective hole and extending from the hole past the outer surface to extend from the head;
wherein the plurality of bristles extends from a melt matte disposed in the cavity, the melt matte being porous.

14. The brush of claim 13 , wherein the handle comprises an opening in fluid communication with the cavity.

15. The brush of claim 13 , further comprising a wick disposed in the cavity.

16. A brush comprising:
a handle;
a head at a distal end of the handle, the head comprising a housing having an inner surface at least partially defining a cavity and an outer surface spaced from the inner surface;
a plurality of holes extending from the outer surface of the housing to the inner surface of the housing; and
a tuft of bristles associated with each of the plurality of holes, the tuft of bristles disposed partially in a respective hole and extending from the hole past the outer surface to extend from the head;
a valve disposed in the cavity.

17. The brush of claim 16 , further comprising a deformable member for pressurizing a portion of the cavity to force fluid through the valve.

Assignees

• Colgate Palmolive Co

Inventors

• Gontarz Gerald
• Johansson Patrik
• Gatzemeyer John
• Hohlbein Douglas
• Wainless Daniel
• Bloch Brian
• Khan Najma

Classifications

• A46B11/0082 Primary

  Means for closing, sealing or controlling the flow using capillary action · CPC title

• C25B9/17

  Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof · CPC title

• A46B2200/104

  Hair brush · CPC title

• A46B3/16

  by wires or other anchoring means, specially for U-shaped bristle tufts · CPC title

• A46B2200/1066

  Toothbrush for cleaning the teeth or dentures (A61C17/16 takes precedence; bristles arrangements for toothbrushes A46B9/04) · CPC title