Applicator end piece having a frustoconical profile

Patent metadata

Field	Value
Publication number	US-12089717-B2
Application number	US-202117996579-A
Country	US
Kind code	B2
Filing date	Mar 3, 2021
Priority date	Apr 21, 2020
Publication date	Sep 17, 2024
Grant date	Sep 17, 2024

Abstract

A device for packaging and applying a cosmetic product, of longitudinal axis X, the device having a container for containing the product and a stem connected by a first end to a gripping part and by a second end to an application element having an application head and an end piece mounted in a housing of the stem, the end piece having a frustoconical portion fitted in a complementary frustoconical space in the housing of the stem.

First claim

The invention claimed is:

1. A device for packaging and applying a cosmetic product, of longitudinal axis X, the device comprising:
a container for containing said product; and
a stem connected by a first end to a gripping part and by a second end to an application element, the application element including an application head and an end piece mounted in a housing of the stem,
wherein the end piece has a frustoconical portion fitted in a complementary frustoconical space provided in the housing of the stem, wherein a length of the frustoconical space is greater than a length of the frustoconical portion,
wherein an outer surface of the frustoconical portion has an elongate first flat along the longitudinal axis X of the device, and
wherein an inner surface of the housing of the stem has a second flat disposed in a position facing the first flat of the frustoconical portion, wherein the stem and the application element are welded to each other.

2. The device as claimed in claim 1 , wherein the frustoconical portion defines an exterior surface that comes fully into contact with an internal surface of the stem defining the complementary frustoconical space.

3. The device as claimed in claim 1 , wherein a proximal end of the end piece is at a distance from an end wall of the housing of the stem.

4. The device as claimed in claim 1 , wherein the application head is at a distance from a distal end of the stem.

5. The device as claimed in claim 1 , wherein the stem and the application element have hardnesses less than 90 Shore A, the stem not having any outward sign of assembly with the application element.

6. The device as claimed in claim 1 , wherein the frustoconical portion defines a small base joined to a first cylindrical portion.

7. The device as claimed in claim 1 , wherein the frustoconical portion is defined by a generatrix that makes an angle (α) with the longitudinal axis of the applicator, the angle α being between 5° and 20°.

8. The device as claimed in claim 1 , wherein the application element is formed in one piece.

9. The device as claimed in claim 1 , wherein the stem has one or more voids or is hollow.

10. The device as claimed in claim 1 , wherein the container and the applicator are separated from one another when the device is being used.

11. A method for manufacturing a device as defined in claim 1 , the method comprising:
manufacturing the application element having the end piece that has the frustoconical portion;
manufacturing the stem provided with the housing comprising the frustoconical space with a form complementary to the frustoconical portion of the end piece;
assembling the application element and the stem by fitting the fastening end piece in the housing; and
securing the application element and the stem together by using a laser beam.

12. A device for packaging and applying a cosmetic product, of longitudinal axis X, which is able to be obtained by way of the method in accordance with claim 11 .

Assignees

• Oreal

Inventors

• Charnay Patrick
• Zhang Hui
• Aubry Laurent

Classifications

• A45D40/265

  connected to the cap of the container · CPC title

• A45D34/045 Primary

  connected to the cap of the container · CPC title

• B29D99/0096

  Producing closure members for containers, e.g. closure caps or stoppers · CPC title

• A45D40/267

  comprising a wiper · CPC title

• A45D34/046 Primary

  comprising a wiper · CPC title