Cosmetic product applicator

Patent metadata

Field	Value
Publication number	US-9642448-B2
Application number	US-51447307-A
Country	US
Kind code	B2
Filing date	Mar 6, 2007
Priority date	Dec 1, 2006
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

An applicator for cosmetic products, typically mascara, comprising a brush made up of fibers trapped between two twisted arms extending in an axial direction and defining turns is characterized in that at least one of said turns is a turn that is not circular. More particularly, these turns describe noncircular ellipses. Such an applicator can be obtained by radial crushing of a standard type brush.

First claim

The invention claimed is:

1. A cosmetic product applicator comprising a brush made up of fibers trapped between two twisted arms extending in an axial direction and defining turns, the arms on two adjacent turns being in contact on a portion of a turn and the fibers being driven out on either side of this portion of the turn.

2. The applicator according to claim 1 , wherein the turns describe a noncircular ellipse.

3. The applicator according to claim 2 , wherein the noncircular ellipse has a ratio of large axis to small axis greater than 1.1.

4. The applicator according to claim 3 , wherein the ratio of large axis to small axis ranges between 1.3 and 1.6.

5. The applicator according to claim 1 , wherein the turns are formed by crushing circular turns.

6. The applicator according to claim 4 , wherein the turns are formed by crushing circular turns.

7. A device for conditioning and applying a product designed to be applied to the lashes or the eyebrows, comprising a container containing the product to be applied and an applicator according to claim 1 .

8. A brush manufacturing process comprising the steps of:
taking a brush comprising bristles trapped between two twisted arms extending in an axial direction; and
applying a radial pressure to said twisted arms so that the arms on two adjacent turns are brought in contact on a portion of a turn thus driving out the fibers on either side of this portion of the turn.

9. The manufacturing process according to claim 8 , wherein said radial pressure is applied by tightening said twisted arms between n jaws of a press, n ranging between 2 and 6.

10. The manufacturing process according to claim 9 , wherein the jaws are stopped at the end of their travel by a calibration gauge.

11. The manufacturing process according to claim 8 , further comprising a step of performing a rotation of said twisted arms after application of said radial pressure.

12. The manufacturing process according to claim 8 , further comprising a step of curving said twisted arms after application of said radial pressure.

13. A brush manufacturing process comprising the steps of:
taking a brush comprising bristles trapped between two twisted arms extending in an axial direction; and
applying a radial pressure to said twisted arms so that the arms define turns, wherein radial cross-sections of the arms describe noncircular turns; and
further comprising a step of performing a rotation of said twisted arms after application of said radial pressure.

Assignees

• Lhoyer Patrick
• Albea Services

Inventors

• Lhoyer Patrick

Classifications

• A46B2200/1053

  Cosmetics applicator specifically for mascara · CPC title

• A46B3/18 Primary

  the bristles being fixed on or between belts or wires · CPC title