Cleansing brushhead for a facial skin cleansing appliance

Patent metadata

Field	Value
Publication number	US-10966514-B2
Application number	US-201916541935-A
Country	US
Kind code	B2
Filing date	Aug 15, 2019
Priority date	Aug 15, 2019
Publication date	Apr 6, 2021
Grant date	Apr 6, 2021

Abstract

The brushhead includes an outer brushhead which is fixed in operation when the brushhead is attached to a skin brush appliance and an inner brushhead which oscillates in operation. The outer brushhead includes three spaced sections of elastomeric fingers and three spaced sections of tufts positioned, respectively, between the elastomeric finger sections. The inner brushhead includes a plurality of non-circular concentric rows of tufts.

First claim

What is claimed is:

1. A cleansing brushhead for use with a skin cleansing appliance, comprising:
an outer brushhead base member, attachable to a handle of the skin cleansing appliance, wherein the outer brushhead base member remains fixed in position during operation of the appliance;
an outer brushhead mounted on the outer brushhead base member, the outer brushhead including at least two spaced sections each comprising a plurality of rows of elastomeric fingers and at least two sections of tufts positioned, respectively, between the spaced sections of elastomeric fingers, wherein each section of tufts comprises a plurality of rows of tufts having a honeycomb arrangement; and
an inner brushhead mounted on an inner brushhead base member, which oscillates in operation by the appliance, the inner brushhead including a plurality of non-circular rows of tufts, wherein the non-circular rows of tufts are hexagonal.

2. The cleansing brushhead of claim 1 , wherein the heights of the tufts in the inner brushhead and the elastomeric fingers and tufts in the outer brushhead decrease from a center of the cleansing brushhead to a surrounding outer edge thereof, defining a curved surface with a radius of between 100-200 mm.

3. The brushhead of claim 1 , wherein the outer brushhead includes three sections of elastomeric fingers and three sections of tufts, the elastomeric fingers extending around the circumference of the outer brushhead for a distance which is greater than the distance of the tufts.

4. The brushhead of claim 3 , wherein the elastomeric finger sections are equally spaced and have the same distance around the brushhead.

5. The brushhead of claim 1 , wherein the dimensions of the rows of the tufts of the inner brushhead are selected to have a differential stiffness resulting in an opposing movement of the tufts in operation.

6. The brushhead of claim 1 , wherein the inner brushhead includes three rows of tufts having a honeycomb configuration and an outer segmented row of three equally spaced tuft sections.

7. The brushhead of claim 6 , wherein each outer segmented row tuft section comprises three tufts.

8. The brushhead of claim 1 , wherein in operation, the inner brushhead portion oscillates at a frequency of 160-180 Hz and an amplitude of 6-12°.

9. The brushhead of claim 1 , wherein the diameter of the elastomeric fingers in the outer brushhead is 1.2 mm and the diameter of the tufts in the outer brushhead is approximately 1.5 mm.

10. The brushhead of claim 1 , wherein the diameter of the tufts in the inner brushhead is approximately 1.5 mm.

Assignees

• Oreal

Inventors

• Goldberg Samuel Benjamin
• Yeates Kyle

Classifications

• A46B2200/1006

  Brushes for cleaning the hand or the human body · CPC title

• A46B5/0095

  Removable or interchangeable brush heads · CPC title

• A46B7/042

  Clip or snap connection for bristle carriers · CPC title

• A46B9/06

  Arrangement of mixed bristles or tufts of bristles, e.g. wire, fibre, rubber · CPC title

• A46B9/02

  Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups · CPC title