Applicator with bristle-ended cartridges

Patent metadata

Field	Value
Publication number	US-9498045-B2
Application number	US-201414557983-A
Country	US
Kind code	B2
Filing date	Dec 2, 2014
Priority date	Dec 27, 2013
Publication date	Nov 22, 2016
Grant date	Nov 22, 2016

Abstract

Cosmetic or pharmaceutical applicator with a supply of the cosmetic or pharmaceutical fluid provided in the brush outside of the bristle facing, a pump mechanism for dispensing the fluid through or in the bristle facing of the brush, whereupon the bristle facing of the brush is a fixed component of a cartridge which provides a supply of the fluid and which can be inserted into and removed again from the applicator chamber intended for this purpose, preferably without the use of tools.

First claim

I claim:

1. A cosmetic or pharmaceutical applicator brush comprising
a supply of a cosmetic or pharmaceutical fluid provided in the brush, the outside of the brush having a bristle facing, a pump mechanism for dispensing the fluid through or in the bristle facing, characterized by the fact that the bristle facing of the brush is a fixed component of a cartridge which keeps a supply of the fluid ready for use and which can be inserted into and removed from an intended compartment of the brush preferably without the use of tools; and
wherein, when in an unused state, the cartridge holds a capsule made up on a tightly sealed shell, preferably in the form of a film or gel shell, which is filled with the fluid to be applied.

2. The brush of claim 1 , wherein the cartridge is a disposable cartridge.

3. The brush of claim 1 , wherein the cartridge has at least one mandrel protruding into its interior which pricks open the shell of the capsule once the pump mechanism is started up to dispense the fluid.

4. The brush of claim 3 , wherein the mandrel has a non-rotund cross-section.

5. The brush of claim 3 , wherein the mandrel has a cross-shaped cross-section.

6. The brush of claim 1 wherein the cartridge is essentially made up of a harder first plastic which at least forms the perimeter walls and one end wall of the cartridge, and a softer, preferably flexible or rubbery-elastic second plastic which forms the bristles inseparably connected to the cartridge.

7. The brush of claim 1 wherein the bristle facing comprises at least one bristle which is hollow and has a bristle channel, the bristle channel connecting the interior cartridge compartment holding the fluid to be applied to the surroundings of the brush.

8. The brush of claim 1 wherein a side of the cartridge facing away from the bristle facing has a base and cartridge plunger which can slide back and forth like a piston, whereupon this is preferably manufactured from a third plastic whose elasticity lies between the plastic forming the bristles and the plastic forming the perimeter wall of the cartridge.

9. The brush of claim 1 wherein a vibrator, which causes the brush and the bristle facing to vibrate, is fitted in the brush body preferably in the direction of its longitudinal axis.

10. A system for the application of cosmetics, comprising a brush according to claim 1 and a number of cartridges which are not refillable without the use of tools, each cartridge containing a supply of cosmetic and designed to suit the cartridge-holding compartment of the brush.

11. The system of claim 10 , wherein several of the cartridges are grouped together in a blister pack to provide a cartridge supply, whereupon the blister pack is structured so that each of the cartridges can be individually removed from the blister pack without subjecting the other cartridges to largely unhindered air admission.

12. A cosmetic or pharmaceutical applicator brush comprising
a supply of a cosmetic or pharmaceutical fluid provided in a brush, the outside of the brush having a bristle facing, a pump mechanism for dispensing the fluid through or in the bristle facing, characterized by the fact that the bristle facing of the brush is a fixed component of a cartridge which keeps a supply of the fluid ready for use and which can be inserted into and removed from an intended compartment of the brush preferably without the use of tools; and
wherein a bristle channel is formed in a hollow bristle of at least one bristle of the bristle facing, the bristle facing designed to be narrow enough so that the fluid contained in the cartridge is prevented by capillary action of the bristle channel from leaking through the bristle channel into the open as long as excess pressure is not applied to the cartridge.

13. A cosmetic or pharmaceutical applicator brush comprising
a supply of a cosmetic or pharmaceutical fluid provided in a brush, the outside of the brush having a bristle facing, a pump mechanism for dispensing the fluid through or in the bristle facing, characterized by the fact that the bristle facing of the brush is a fixed component of a cartridge which keeps a supply of the fluid ready for use and which can be inserted into and removed from an intended compartment of the brush preferably without the use of tools; and
wherein the inside of an end wall of the cartridge is at least partially covered by a layer of the plastic which forms bristles, whereupon this layer is connected to the bristles through local perforations in the plastic forming the cartridge to create one material and one single part.

14. A cosmetic or pharmaceutical applicator brush comprising
a supply of a cosmetic or pharmaceutical fluid provided in a brush, the outside of the brush having a bristle facing, a pump mechanism for dispensing the fluid through or in the bristle facing, characterized by the fact that the bristle facing of the brush is a fixed component of a cartridge which keeps a supply of the fluid ready for use and which can be inserted into and removed from a brush chamber of the brush preferably without the use of tools; and
wherein the brush chamber incorporating the cartridge is accessible by flipping open a part of the brush body away from another part of the brush body along a hinge axis which is fundamentally perpendicular to a longitudinal axis of the brush.

Assignees

• Geka Gmbh

Inventors

• Hartstock-Martin Karl

Classifications

• A45D24/28

  with piston pump {or other types of pumps} · CPC title

• A45D2034/005

  with a cartridge · CPC title

• A45D34/042 Primary

  using a brush or the like · CPC title

• A61M35/003

  Portable hand-held applicators having means for dispensing or spreading integral media (hand-held massage devices with liquid delivery A61H7/003) · CPC title

• A46B11/0062

  Brushes where the reservoir is specifically intended for being refilled when empty · CPC title