Patents by Inventor Jan Podgorski

Jan Podgorski 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).

  • Oxygen filled, sealed housing for piezoceramic electroacoustic transducer
    Patent number: 4213071
    Abstract: Electroacoustic transducer having a piezoceramic transducer element includes an oxygen-impermeable and oxygen-nonabsorbing enclosure wherein the transducer element is received.
    Type: Grant
    Filed: October 13, 1977
    Date of Patent: July 15, 1980
    Assignee: INTERATOM Internationale Atomreaktorbau GmbH
    Inventor: Jan Podgorski
  • Electroacoustic transducer with a magnetostrictive core
    Patent number: 4129851
    Abstract: Electromechanical transducer includes a magnetostrictive core formed of a superimposed stack of individual plates disposed within a cylindrical protective sheath and having a coil wound thereon in longitudinal direction thereof, the plates having the shape of a circular disc formed with slots therein which leave open an area central to the disc that corresponds to the cross section of the coil and are disposed alternatingly offset from one another at a given angle so that the stack formed by the individual plates is in contact with the inner surface of the protective sheath over the entire periphery thereof.
    Type: Grant
    Filed: January 18, 1977
    Date of Patent: December 12, 1978
    Assignee: INTERATOM, International Atomreaktorbau GmbH
    Inventor: Jan Podgorski