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Dry powder dose filling systems and related methods

  • US 20040153262A1
  • Filed: 06/26/2003
  • Published: 08/05/2004
  • Est. Priority Date: 05/10/2002
  • Status: Active Grant
First Claim
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1. A method of flowably dispensing dry powders from a hopper having a dispensing port and a dry powder flow path, comprising:

  • generating a first non-linear vibration input signal, the first non-linear input signal comprising a plurality of different selected frequencies that correspond a first dry powder formulation;

    applying the first non-linear vibration input signal to a dispensing hopper having at least one dispensing port while the first dry powder formulation is flowing therethrough; and

    dispensing a first meted quantity of the first dry powder through the dispensing port to a receiving member.

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