Device for applying a cosmetic product stick

Patent metadata

Field	Value
Publication number	US-12201206-B2
Application number	US-202318202782-A
Country	US
Kind code	B2
Filing date	May 26, 2023
Priority date	May 31, 2022
Publication date	Jan 21, 2025
Grant date	Jan 21, 2025

Abstract

A device for applying a cosmetic product includes a cup comprising at least one lug; a guide comprising a slot passed through by an associated lug of the cup, the slot comprising an upper edge; a sheath comprising internally a helical groove for receiving the lug of the cup; and the lug ( 32 ) having an upper flattened area. The upper edge of the slot is inclined with respect to a radial plane.

First claim

The invention claimed is:

1. A device for applying a cosmetic product stick, having a main axis (A), said device comprising:
a cup for receiving the stick and comprising at least one radial lug;
at least one guide comprising a tubular body which comprises an upper opening through which the stick gets out, in which the cup is mounted so as to slide axially, the guide comprising at least one axial slot extending from a bottom of the guide, which is passed through by the at least one associated lug of the cup, the slot being delimited by a rectilinear upper edge;
a tubular sheath in which the tubular body of the guide is mounted in rotation, the tubular sheath comprising internally at least one helical groove for receiving the at least one lug of the cup, the rotation of the guide with respect to the tubular sheath causing an axial movement of the cup between an extreme extended position in the vicinity of the upper opening in which the lug is in abutment against the upper edge of the slot and an extreme retracted position;
wherein the tubular sheath is integrally made with a base of the device to which a removable cover is intended to be directly attached, the tubular sheath, the base and the guide being made of polypropylene,
wherein the at least one slot is open axially in a direction opposite the upper opening.

2. The device according to claim 1 , wherein the cup is made of 100% polypropylene.

3. The device according to claim 1 , wherein the cup is formed from a blend comprising at least 80% polypropylene, the remainder of the blend being formed from low density polyethylene.

4. The device according to claim 1 , wherein the at least one lug has an upper flattened area.

5. The device according to claim 4 , wherein the lug comprises a lower flattened area parallel to the upper flattened area, the lower flattened area cooperating with a lower wall of the associated helical groove of the sheath.

6. The device according to claim 1 , wherein the upper edge of the at least one slot is inclined with respect to a radial plane orthogonal to the main axis (A).

7. The device according to the claim 6 , wherein the helical groove has a constant angle (α) of inclination, the upper flattened area of the lug having the same angle (α) of inclination as the helical groove and cooperating with an upper wall of said helical groove, the upper edge of the at least one slot having the same angle (α) of inclination as the upper flattened area of the lug so that, in the extreme extended position, the lug bears against the upper edge over the entire width of the upper flattened area.

8. The device according to claim 1 , wherein the at least one slot has an upper end stretch which has a width (I) substantially equal to a width of the lug, the lug being housed in said upper end stretch of the at least one slot in the extreme extended position of the cup.

9. The device according to claim 8 , wherein the at least one slot has a passage restriction arranged at a lower entrance of the upper end stretch of said slot.

10. The device according to the claim 9 , wherein the at least one slot is delimited in a width orientation by two axial edges, the restriction of passage being made by at least one projection made in the one and/or the other of the axial edges.

11. The device according to claim 10 , wherein passage of the lug through the restriction of passage is achieved by elastically spacing apart the axial edges of the at least one slot.

12. The device according to claim 11 , wherein, when the cup occupies its extreme extended position, the lug is tightened axially between the upper edge of the at least one slot and the at least one projection by an elastic return force of the axial edges, the cup thus being blocked in its extreme extended position as long as an axial force greater than a force for overcoming the restriction of passage is not applied to the cup.

13. The device according to claim 1 , wherein there are two at least one slot which are open in a lower end of the body, a lower stretch of the body being therefore divided into two legs by the slots.

14. The device according to claim 13 , wherein the guide has an upper stretch, located axially above the legs, which has a shoulder radially outwards with respect to the legs, this shoulder bearing axially against an upper edge of the sheath.

15. The device according to claim 1 , wherein the upper opening of the guide is delimited by a bevelled edge with respect to the main axis (A) of the device.

16. The device according claim 1 , wherein the upper opening of the guide is delimited by an edge extending in a plane orthogonal to the main axis (A).

17. The device according to claim 1 , wherein the cover is made of polypropylene.

Assignees

• Albea Services

Inventors

• Jourdain Marc
• Edmondson Mark
• Sourdeau Thomas Emmanuel

Classifications

• A45D2040/0062

  Stick holding cups with retaining means, e.g. clamping means · CPC title

• A45D40/04

  effected by a screw · CPC title

• A45D40/06 Primary

  Casings wherein movement of the lipstick or like solid is a screwing movement · CPC title

• A45D40/12 Primary

  Casings with provision for preventing undesired movement of the stick (A45D40/10 takes precedence) · CPC title