Patents by Inventor Peter C. Sundt

Peter C. Sundt 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).

  • Geophone having a non-conductive coilform
    Patent number: 4504932
    Abstract: A geophone having a non-conductive coilform thereby avoiding the disadvantages of conductive coilform damping and allowing closer control of both sensitivity and damping solely through shunt loading of the sensing coil. The coilform is a molded plastic coilform of a high strength lightweight glass filled resin. The coilform is a dimensionally stable and temperature stable thermoplastic. Preferably, the coilform is of polyphenylene sulfide.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: March 12, 1985
    Assignee: Metrix Instrument Co.
    Inventor: Peter C. Sundt