Patent ID: 7428446

Claim:
A dry powder dispensing system, comprising: a hopper configured to hold a dry powder therein, the hopper having at least one dispensing port and a wall with an inner surface and outer surface; a quantity of a dry powder disposed in the hopper; at least one vibration energy source operably associated with the hopper, wherein, in operation, the at least one vibration energy source is configured to output a non-linear vibratory energy sufficient to impart a velocity with at least one downward force vector to the dry powder as the dry powder flows downwardly to the dispensing port, wherein the non-linear vibratory energy comprises a carrier frequency modulated by a plurality of different selected modulating frequencies that correspond to a first dry powder formulation; and a controller operably associated with the hopper and the vibration energy source, the controller configured to direct the vibration energy source to output the carrier frequency modulated by the selected modulating frequencies.