An apparatus for applying a cosmetic, such as mascara to eyelashes, includes a handle, a stem, and an applicator head coupled to the stem and supported for rotation relative to the handle. An actuator moves the applicator head in a rotational oscillating motion, in which the applicator head automatically...http://www.google.es/patents/US7762269?utm_source=gb-gplus-sharePatente US7762269 - Cosmetic applicator
