US 11,771,198 B2
Pulverizer for cosmetic formulations
William Robert Bickford, Scotch Plains, NJ (US)
Assigned to L'Oreal, Paris (FR)
Filed by L'OREAL, Paris (FR)
Filed on Jun. 30, 2021, as Appl. No. 17/364,190.
Prior Publication US 2023/0000231 A1, Jan. 5, 2023
Int. Cl. B02C 19/08 (2006.01); A45D 33/02 (2006.01)
CPC A45D 33/02 (2013.01) [B02C 19/08 (2013.01)] 11 Claims
OG exemplary drawing
 
1. 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.