Brush configuration for a powered skin cleansing brush appliance

Inactive Publication Date: 2005-12-22
LOREAL SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some existing arrangements, the skin will be ineffectively cleansed, with little or no sense of cleansing by the

Method used

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  • Brush configuration for a powered skin cleansing brush appliance
  • Brush configuration for a powered skin cleansing brush appliance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007]FIG. 1 shows an example of a hand held power skin care appliance 10 which is useful in facial skin care applications. The appliance includes a large brushhead 12, which in one embodiment is approximately 1.6 inches in diameter and a driving system 15. The brushhead includes two portions, an outer annular-shaped portion 14 comprising two concentric rings of bristle tufts and a circular inner portion 16 comprising a significant number of spaced bristle tufts, sufficient to cover the annular opening defined by the outer bristle portion. In the embodiment shown, there is a gap or space between the inner and outer brushhead portions, in the range of 0.125-0.050 inches, preferably 0.084 inches. In operation of the appliance, outer bristle portion 14 remains stationary, while inner bristle portion 16 oscillates through a specified angle. In one embodiment the angle is within the range of 8° to 26°, although this can be varied, depending upon the particular application.

[0008] The str...

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PUM

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Abstract

The bristle arrangement includes a first brush portion which has a first set of bristles, the first brush portion being arranged in an annular configuration, and remains stationary in operation of the appliance. The bristle arrangement also includes a second brush portion which has a second set of bristles, wherein the second brush portion oscillates at a selected frequency. The second set of bristles has a circular arrangement, fitting within the opening of the annular arrangement of the first set of bristles. The first and second sets of bristles have a diameter within the range of 3 mils to 5 mils, and a length in the range of 0.3 to 0.425 inches. The first bristle set includes 40 to 100 bristle tufts and the second bristle set includes 40 to 120 bristle tufts, which are substantially evenly spread, respectively.

Description

TECHNICAL FIELD [0001] This invention relates generally to powered skin cleansing brushes and more specifically to bristle arrangements for use in such a skin cleansing brush. BACKGROUND OF THE INVENTION [0002] In a skin cleansing brush, particularly a powered brush which is constructed such that a portion of the brushhead and the bristles thereon remain stationary while another portion thereof oscillates, a number of factors are important for good cleansing action. The ability of the powered skin cleansing brush to effectively and safely function, including in addition to cleansing, exfoliation and increasing the absorption of various skin formulations, is significantly affected by the bristle morphology and bristle arrangement of the brush. [0003] In some existing arrangements, the skin will be ineffectively cleansed, with little or no sense of cleansing by the user, while in other cases, the skin may be overly cleansed with a mild sensation of abrasion, which is undesirable. [000...

Claims

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Application Information

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IPC IPC(8): A46B13/00A46B13/02
CPCA46B13/008A47K7/04A46B2200/1006A46B13/02
Inventor AKRIDGE, ROBERT E.PILCHER, KENNETH A.SCHUMAKER, DAVID B.
Owner LOREAL SA
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