Back to results
US 11,771,198 B2Granted
Pulverizer for cosmetic formulations
AssigneeL'oreal
InventorWilliam Robert Bickford
Life of this patent
Estimating the term…
Abstract
A pulverizing device that include a pulverizing or grinding component for generating powder from the solid product. The pulverizing or grinding component also constrains and/or supports the solid product. The pulverizing or grinding component moves somewhat linearly with respect to the solid product in order to pulverize the solid product. The pulverizing or grinding component includes a spiral spring or a helical spring.
Claims11
An apparatus comprising:
- a housing having a cavity and a dispensing outlet;
- a plunger movably supported by the housing, a first end of the plunger being positioned exteriorly of the housing and a second end of the plunger being positioned inside the cavity;
- an extension spring disposed in the housing, the extension spring arranged and configured to receive or support a friable material adjacent the second end of the plunger,
- wherein continuous movement of the plunger against the friable material causes relative movement between the friable material and the extension spring, wherein during such relative movement the extension spring applies a shearing force to the friable material for pulverizing the friable material into powder to be dispensed from the dispensing outlet.
1 more element
A pulverizing apparatus, comprising:
- a housing having a cavity and a dispensing outlet;
- a cosmetic product disposed in the housing;
- a plunger movably supported by the housing between a first, non-pulverizing position and a second, pulverizing position, a first end of the plunger being positioned exteriorly of the housing and a second end of the plunger being positioned inside the cavity and adjacent the cosmetic product;
- a coil spring disposed in the housing, the coil spring arranged and configured to support the cosmetic product adjacent the second end of the plunger,
- wherein movement of the plunger from the first position to the second position causes the coil spring to apply a shearing force against the cosmetic product to pulverize the cosmetic product into powder to be dispensed from the dispensing outlet.
2 more elements
Dependencies are inferred from the claim text.