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1. WO2020112628 - AIRTIGHT COMPACT

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[ EN ]

CLAIMS

What is claimed is:

1. A cosmetic case comprising:

a base having a recess defined by a recess wall;

a ring free to rotate about said recess wall and retained by said base; a cover;

a hinge affixing said cover to said ring to form a cover assembly;

wherein rotation of said cover assembly about said recess wall forms an airtight seal between said base and said cover;

wherein said ring further comprises at least one ring protrusion;

wherein said base further comprises at least one base protrusion;

wherein at least one of said at least one ring protrusion engages with at least one of said at least one base protrusion to secure said cover assembly in a secured position.

2. A cosmetic case according to claim 1 where said secured position denotes an opened or closed position.

3. A cosmetic case according to claim 1 where said at least one ring protrusion is selected from the group consisting of a bump, a ledge, a hook, and combinations thereof.

4. A cosmetic case according to claim 1 where said at least one base protrusion is selected from the group consisting of a bump, a ledge, a hook, and combinations thereof.

5. A cosmetic case according to claim 1 wherein said base further comprises at least one riser such that during rotation of said cover assembly said at least one ring protrusion engages with said at least one riser and moves said cover assembly in a vertical direction.

6. A cosmetic case according to claim 1 , wherein said cover and said recess wall each further comprise mating threads such that engagement of said threads and rotation of said cover assembly draws said cover towards said base to form said airtight seal.

7. A cosmetic case of claim 1 , further comprising:

a sealing element affixed to said cover, said sealing element having a chamfered perimeter;

a chamfer on said recess wall configured to mate with said chamfered perimeter on said sealing element to form said airtight seal.

8. A cosmetic case of claim 7 wherein said sealing element is selected from the group consisting of an annular gasket, a valve seal ring, a disc, and combinations thereof.

9. A cosmetic case of claim 1 wherein said case further includes a mirror affixed to said case.

10. A cosmetic case of claim 1 wherein said hinge has an outer profile which

substantially matches a profile of an outer diameter of said ring, and said hinge in the closed position is contained within said outer perimeter of said ring.

1 1 . A cosmetic case according to claim 1 , wherein said cover and said base are made of at least two layers, wherein each layer is made of a material different than another layer.

12. A cosmetic case comprising:

a base having a recess defined by a recess wall;

a screw piece inside of said base;

a ring free to rotate within said recess wall;

an elevator;

a cover;

wherein rotation of said cover about said recess wall forms an airtight seal between said base and said cover;

wherein rotation of said ring with respect to said base moves said elevator in a vertical direction.

13. A cosmetic case according to claim 12, wherein said elevator and said screw piece each further comprise mating threads such that engagement of said threads and rotation of said elevator causes said movement of said elevator in said vertical direction.

14. A cosmetic case according to claim 12 wherein said elevator further comprises at least one protrusion for controlling said movement of said elevator in said vertical direction.

15. A cosmetic case according to claim 12 wherein said ring further comprises a shoulder and said screw piece further comprises a groove, and wherein

interaction of said shoulder and said groove secure said ring and said screw piece together.

16. A cosmetic case according to claim 12, wherein said cover and said base are made of at least two layers, wherein each layer is made of a material different than another layer.

17. A cosmetic case according to claim 12, wherein said cover and said recess wall each further comprise mating threads such that engagement of said threads and rotation of said cover draws said cover towards said base to form said airtight seal.

18. A cosmetic case according to claim 12 wherein said base further comprises at least one base protrusion and said cover each further comprises at least one cover protrusion, and wherein at least one of said at least one cover protrusion engages with at least one of said at least one base protrusion to secure said cover in a secured position.

19. A cosmetic case according to claim 18 wherein said secured position is an open or closed position.

20. A cosmetic case comprising:

a base having a recess defined by a recess wall;

a cover;

a ring;

mating threads on said recess wall and said cover;

a sealing element affixed to said cover, said sealing element having a chamfered perimeter;

a chamfer on said recess wall configured to mate with said chamfered perimeter on said sealing element;

wherein rotation of said cover about said recess wall engages said mating threads on said cover and recess wall and draws said cover towards said base;

wherein drawing said cover towards said base engages said chamfered perimeters on said cover and said recess wall and forms an airtight seal between said base and said cover.