Patents by Inventor Ronald D. San Giovanni

Ronald D. San Giovanni 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: 4455631
    Abstract: The apparatus comprises a geophone connected to a circuitry case containing battery, a voltage regulator, a solid state preamplifier and amplifier tuned to respond to seismic signals between 2 and 25 Hz. The amplified seismic signals are rectified and applied to a microammeter connected to efficiently respond to pulsations at the step frequency of walking or crawling personnel. The apparatus can be used to measure seismic noise and to determine soil conditions prior to the emplacement of an intrusion detection system.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: June 19, 1984
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Ronald D. San Giovanni