WIPER ASSEMBLY

• US 20190059553A1
• Filed: 08/31/2017
• Published: 02/28/2019
• Est. Priority Date: 08/31/2017
• Status: Active Grant

• Current Assignee: L'Oreal SA
• Original Assignee: L'Oreal SA
• Inventors: Tarling, Christopher
• Granted Patent: US 10,517,372 B2
• Time in Patent Office: Days
• CPC Class Codes: A45D 34/046 comprising a wiper
• CPC Class Codes: A45D 40/267 comprising a wiper

Abstract

A wiper assembly includes a non-porous base configured for attachment to an open end of a container body and a porous wiper overmolded onto the base that is configured to wipe formulation from an applicator when removed from the container body.

A wiper assembly includes a collar configured to be positioned within an open end of a container body. The collar includes a substantially cylindrical shaped base portion having a top opening and a substantially dome-shaped secondary wiper portion extending from the base portion that has a bottom opening defining at least one secondary wiper edge. A sponge is configured to be disposed beneath the secondary wiper portion of the collar that has an opening in substantial axial alignment with the top and bottom openings of the collar.

Claims

1. A wiper assembly, comprising:

a non-porous base configured for attachment to an open end of a container body; and

a porous wiper overmolded onto the base that is configured to wipe formulation from an applicator when removed from the container body.

2. The assembly of claim 1, wherein the base and the wiper are made from the same material.

3. The assembly of claim 1, wherein the base and the wiper are made from a material chosen from the group consisting of polyethylene, polypropylene, propylene, styrene-ethylene polymer, butylene-styrene polymer, thermo polymer, and any combination thereof.

4. The assembly of claim 1, wherein the base is formed in a first mold, and the wiper is formed in a second mold.

5. The assembly of claim 4, wherein the wiper is submerged in a bath after being molded to define pores within the wiper.

6. The assembly of claim 5, wherein the base is molded with a first material, and the wiper is molded with the first material having a soluble filler that dissolves in the bath.

7. The assembly of claim 1, wherein the base is substantially cylindrical shaped having a top opening.

8. The assembly of claim 7, wherein the top opening has an inner diameter of less than about 9 mm.

9. The assembly of claim 7, wherein the wiper is substantially dome-shaped having a bottom opening defining at least one wiper edge.

10. The assembly of claim 9, wherein the bottom opening has an inner diameter of less than about 5 mm.

11. The assembly of claim 7, wherein the at least one wiper edge extends substantially axially along a length of the bottom opening.

12. The assembly of claim 1, wherein the base includes a retention portion configured for attachment to a container body and a bonding portion configured to be overmolded with the wiper.

13. The assembly of claim 12, wherein the bonding portion includes a plurality of axial ridges.

14. The assembly of claim 12, wherein the bonding portion includes a plurality of axial fingers.

15. A wiper assembly, comprising:

a collar configured to be positioned within an open end of a container body, the collar comprising;

a substantially cylindrical shaped base portion having a top opening; and

a substantially dome-shaped secondary wiper portion extending from the base portion that has a bottom opening defining at least one secondary wiper edge; and

a sponge configured to be disposed beneath the secondary wiper portion of the collar and having an opening in substantial axial alignment with the top and bottom openings of the collar.

16. The assembly of claim 15, further comprising a cap engaging portion surrounding the collar that is configured to be selectively attached to a cap for enclosing the container body.

17. The assembly of claim 16, further comprising an end cap portion extending from the cap engaging portion that is configured to be secured onto and retained on the container body and at least partially enclose the sponge.

18. The assembly of claim 17, further comprising a sponge housing disposed beneath the sponge and receivable within an upper open end of the container body for securing a lower end of the sponge in at least one of an axial and radial position within the end cap portion.

19. The assembly of claim 18, further comprising a plurality of spikes extending substantially axially from the sponge housing and configured to engage the sponge.

20. The assembly of claim 15, further comprising a plurality of spikes extending substantially axially from the collar and configured to engage the sponge.