US Patent 7329038 Mixer

A mixer capable of uniformly mixing a plurality of fluid materials without providing a mixing tank or an agitating vane. Different fluid raw materials are stored in raw material tanks, respectively. The raw materials are fed at a predetermined rate by variable restrictors so as to be supplied to a fluid supply hole of a nozzle. At this moment, the materials are not mixed. When the materials are discharged from a fluid discharge outlet, compressed air introduced from an air supply hole of the nozzle forms a high-speed vortex flow of the compressed air in front of the nozzle and the discharged raw materials are crushed into fine particles and mixed by this vortex flow, thereby obtaining a uniformly mixed material.