Patents by Inventor Norma J. Miller

Norma J. Miller has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for increasing the throw distance and velocity for an impulse ink jet
    Patent number: 6126259
    Abstract: An impulse fluid jet apparatus having pulse generating circuitry for an impulse jet. The circuitry generates driving a longer pulse exciting the resonant frequency of the jet and a shorter pulse for exciting a higher harmonic frequency of the jet. The longer pulse changes the state of energization of the transducer in the jet to eject a droplet of fluid and the shorter pulse changes the state of energization so as to break off the tail of the droplet.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: October 3, 2000
    Assignee: Trident International, Inc.
    Inventors: Christopher M. Stango, Norma J. Miller, Robert L. Rogers, Charles S. Tamarin