Patents Represented by Attorney, Agent or Law Firm Lannie L. Parker
  • Filter apparatus and method therefor
    Patent number: 6423638
    Abstract: An ultrasonic driver (105) is used to vibrate a filter disk (103) at ultrasonic frequencies. Vibrations are used to break up agglomerates into smaller pieces that pass through filter disk (103). The energy is controlled to minimize the translational energy given to the particles as they are broken up to prevent reagglomeration. The frequency and amplitude of the vibration is controlled to operate out of or in low energy cavitation.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: July 23, 2002
    Assignee: Motorola, Inc.
    Inventor: James F. Vanell