Brushhead for use with a non-newtonian cosmetic composition

Patent metadata

Field	Value
Publication number	US-9474358-B2
Application number	US-201414585464-A
Country	US
Kind code	B2
Filing date	Dec 30, 2014
Priority date	Dec 30, 2014
Publication date	Oct 25, 2016
Grant date	Oct 25, 2016

Abstract

The brushhead includes a brushhead base member and at least one outer ring of bristles mounted thereto, the brush base member being non-oscillating. An inner assembly is adapted to capture a solid, semi-solid, gel or the like non-Newtonian balm element having shear thinning characteristics. In an embodiment, the inner assembly is adapted to receive energy from an oscillating action of the inner assembly produced by a motor in the appliance to which the brushhead is attachable. Oscillation of the inner portion at a target frequency and amplitude is sufficient to result in the solid, semi-solid, gel or the like balm element changing to a liquid in a shear thinning effect, the liquid being useful for removal of makeup.

First claim

What is claimed is:

1. A brushhead for use with a non-Newtonian cosmetic composition, comprising:
a brushhead base member, the base member remaining fixed in position relative to an associated appliance during operation of the appliance;
at least one outer ring of bristles mounted on the base member and adapted for comfortable contact with the skin; and
an inner brushhead portion adapted to capture a solid, semi-solid or gel non-Newtonian cosmetic composition which has shear thinning characteristics, the inner portion further adapted to receive energy by virtue of an oscillating action on the inner portion produced by a motor assembly in the appliance to which the brushhead is attachable, wherein oscillation of the inner portion at a selected frequency and amplitude results in a change of state of the non-Newtonian cosmetic composition from solid, semi-solid or gel to liquid, wherein the inner brushhead portion includes one or more rings of bristles, a plurality of elastomeric members supporting the non-Newtonian cosmetic composition and a central stake, taller than the elastomeric members, to which the non-Newtonian cosmetic composition is securable, so that the solid, semi-solid or gel non-Newtonian composition is maintained within the brushhead as the appliance changes orientation.

2. The brushhead of claim 1 , including in combination therewith a solid, semi-solid or gel non-Newtonian cosmetic composition which has shear thinning characteristics, wherein oscillation of the inner portion at a selected frequency and amplitude results in a change of state of the non-Newtonian cosmetic composition from solid, semi-solid or gel to liquid for makeup removal.

3. The brushhead of claim 2 , wherein the frequency of oscillation of the inner portion is in the range of 135-175 Hz, and wherein the amplitude ranges from about 3° to 18° to assist in producing a shear thinning effect.

4. A brushhead for use with a non-Newtonian cosmetic composition, comprising:
a brushhead base member, the base member remaining fixed in position relative to an associated appliance during operation of the appliance;
two fixed concentric outer rings of bristles mounted on the base member and adapted for comfortable contact with the skin;
an inner brushhead portion adapted to receive/capture a solid, semi-solid or gel non-Newtonian cosmetic composition which has shear thinning characteristics, the inner portion further adapted to receive energy by virtue of an oscillating action on the inner portion produced by a motor assembly in the appliance to which the brushhead is attachable, wherein oscillation of the inner portion at a selected frequency and amplitude results in a change of state of the non-Newtonian cosmetic composition from solid, semi-solid or gel to liquid, wherein the inner portion includes at least two concentric rings of bristles, a plurality of elastomeric members supporting the non-Newtonian cosmetic composition and a central stake, taller than the elastomeric members, to which the non-Newtonian cosmetic composition is securable so that the solid, semi-solid or gel non-Newtonian cosmetic composition is maintained within the brushhead as the appliance changes orientation, the inner brushhead portion further including a plurality of rings of elastomeric members between the central stake and inner portion rings of bristles.

5. A brushhead for use with a non-Newtonian cosmetic composition, comprising:
a brushhead base member, the base member remaining fixed in position relative to an associated appliance during operation of the appliance;
two fixed concentric outer rings of bristles mounted on the base member and adapted for comfortable contact with the skin;
an inner brushhead portion adapted to receive/capture a solid, semi-solid or gel non-Newtonian cosmetic composition which has shear thinning characteristics, the inner portion further adapted to receive energy by virtue of an oscillating action on the inner portion produced by a motor assembly in the appliance to which the brushhead is attachable, wherein oscillation of the inner portion at a selected frequency and amplitude results in a change of state of the non-Newtonian cosmetic composition from solid, semi-solid or gel to liquid, wherein the inner portion includes at least two concentric rings of bristles, a plurality of elastomeric members supporting the non-Newtonian cosmetic composition and a central stake, taller than the elastomeric members, to which the non-Newtonian cosmetic composition is securable so that the solid, semi-solid or gel non-Newtonian cosmetic composition is maintained within the brushhead as the appliance changes orientation, the inner brushhead further includes a plurality of rings of elastomeric members between the central stake and the inner portion rings of bristles, wherein the outer bristles and the inner portion bristles are 3 mil DuPont super soft filaments with a height of 0.425 inches and wherein the elastomeric members vary in height from 0.05-0.35 inches with a diameter of approximately 0.6 inches.

Assignees

• L'Oréal
• Oreal

Inventors

• Brewer Gerald K
• Poole Aaron D
• George Kelly M
• Poletti Mickaël

Classifications

• A47K7/03

  containing soap or other cleaning ingredients, e.g. impregnated · CPC title

• A46B11/0006

  specially adapted to feed the bristle upper surface · CPC title

• A46B9/06

  Arrangement of mixed bristles or tufts of bristles, e.g. wire, fibre, rubber · CPC title

• A47K7/04

  {Mechanical} washing or cleaning devices, hand or mechanically, {i.e. power} operated · CPC title

• A46B13/008

  Disc-shaped brush bodies · CPC title