Patents by Inventor Alan L. Susal

Alan L. Susal 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).

  • Patent number: 6727859
    Abstract: A radiated electric-field meter comprises high frequency and low frequency antennas connected to a pre-amplifier with manually adjustable gain. This feeds a linear-logarithmic amplifier/detector with a mode switch for logarithmic/linear operations. A standard panel meter provides an analog reading. Red and green LED panel lights are set close together and fed opposite signals proportional to the detected field strength. As the measurements change from zero to full-scale, the relative intensities of the green and red LED's change, providing a hue change proportional to field strength. A silent vibrator can also be switched in to provide a vibrator indication of field strength and changes of field strength.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: April 27, 2004
    Inventor: Alan L. Susal
  • Patent number: D458157
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: June 4, 2002
    Inventor: Alan L. Susal