Patent ID: 7118010
Filing Date: 2006-10-10
Classification: A61M,B65B,B65D,B65G

Abstract:
1. A method for selecting and/or determining customizable excitation signals for dispensing dry powders, comprising the steps of: providing an elongate flow channel having a floor of piezoelectric material; selecting an angle of orientation for the flow channel such that at least a portion of the flow channel angularly extends in a non-vertical, non-horizontal orientation in the axial direction; providing a quantity of a target dry powder; outputting a vibration excitation signal having a first carrier frequency from a signal generator to the piezoelectric material; flowing the dry powder out of the flow channel; outputting a vibration excitation signal having a second carrier frequency from the signal generator to the piezoelectric material; and determining a dispensing vibration excitation signal for the target dry powder that generates a repeatable or a uniform or a repeatable and uniform fluid-like substantially non-agglomerated flow output based on flow data from the first and second vibration excitation signals.