US Patent 8668401 Mascara dispensing device

A cost effective device for storing a fluid material, and controlling the amount of fluid material that will be provided on an applicator for application to a particular surface is disclosed. The device is comprised of few parts including an outer housing having a first chamber and a second chamber, a fluid insert, an applicator, and an adjustment mechanism. This makes the device cheaper to manufacture, and easy to assemble. The embodiments disclosed can be provided in a pre-assembled form to cosmetic companies and the like seeking to fill a dispenser with their fluid cosmetic products.