Patents by Inventor Rudolf Sirato

Rudolf Sirato 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).

  • Circuit system for igniting and operating a high-pressure discharge lamp, particularly a sodium vapor lamp
    Patent number: 4749914
    Abstract: A circuit system for igniting and lighting a high-pressure discharge lamp, particularly a sodium vapor lamp, comprising a pulse generator for generating signals of at least 1 kHz frequency being a high-frequency DC/AC converter connected to a direct current source and an ignition circuit coupled with the pulse generator including a high-pressure discharge lamp, a condenser connected in parallel to the high-pressure discharge lamp and an inductive member connected to the condenser and the high-pressure discharge lamp and forming a series member with the condenser the ignition circuit is provided with a transformer having a secondary winding connected in series with the inductive member for ensuring high reliability of igniting and for improving the conditions of lighting.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: June 7, 1988
    Assignee: El-Co Villamos Keszulekek es Szerelesi Anyagok Gyara
    Inventors: Zoltan Feher, Arpad Karpat, Janos Melis, Rudolf Sirato, Andras Szeverenyi, Bela Waldinger