Patents by Inventor Anthony M. Di Tommaso

Anthony M. Di Tommaso 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 recording and removing the bipolar bias from a vibration input signal
    Patent number: 6546361
    Abstract: A method for recording and removing the bipolar bias from a vibration input signal. The signal is a time varying signal where the bipolar bias has an amplitude which is many times greater than the amplitude of the time varying waveform of the signal that represents the vibration of the machine. In calculating the level of the bipolar bias the method approaches a predetermined dead band asymptotically and in stable manner. The determination of the bipolar bias level occurs when the next event has occurred and the time for that determination is much shorter than the time between occurrence of the events.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: April 8, 2003
    Assignee: ABB Automation Inc.
    Inventors: Anthony M. Di Tommaso, Ren-Chao Ye
  • Continuous time pulse detection system utilizing automatic bias removal
    Patent number: 6414495
    Abstract: An event marker is generated from the periodic input voltage received from the notch in a shaft of a rotating machine. Positive and negative peak voltages each attenuated by ½ are detected from the periodic input voltage. The attenuated detected positive and negative peak voltages are combined to provide a bias voltage which is subtracted from the periodic input voltage to give an output voltage representative of the event marker.
    Type: Grant
    Filed: November 10, 2000
    Date of Patent: July 2, 2002
    Assignee: ABB Automation Inc.
    Inventors: Anthony M. Di Tommaso, Kevin Dowdell