Patents by Inventor János Bajnok

János Bajnok 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).

  • Method for forming cold spot region and discharge lamp with such cold spot region
    Patent number: 7227303
    Abstract: A method for forming a cold spot region on a discharge tube of a discharge lamp is disclosed. In the method, a discharge tube is formed, and a tubular extension is formed on at least one end of the discharge tube. The tubular extension has a smaller diameter than the diameter of the discharge tube end. The tubular extension is formed so that a free end of the tubular extension extends away from the end of the discharge tube. A reduced thickness portion is formed on the tubular extension. The reduced thickness portion is formed as a membrane. A discharge lamp is also disclosed, which comprises a discharge tube with a tubular extension located at an end of the discharge tube. The tubular extension has a smaller diameter than the diameter of the discharge tube end, and the tubular extension comprises a reduced thickness portion. The reduced thickness portion is a membrane, preferably formed of the material of the tubular extension.
    Type: Grant
    Filed: January 2, 2004
    Date of Patent: June 5, 2007
    Assignee: General Electric Company
    Inventors: János Bajnok, András Horváth, Sándor Lukács
  • Method for forming cold spot region and discharge lamp with such cold spot region
    Publication number: 20040207326
    Abstract: A method for forming a cold spot region on a discharge tube of a discharge lamp is disclosed. In the method, a discharge tube is formed, and a tubular extension is formed on at least one end of the discharge tube. The tubular extension has a smaller diameter than the diameter of the discharge tube end. The tubular extension is formed so that a free end of the tubular extension extends away from the end of the discharge tube. A reduced thickness portion is formed on the tubular extension. The reduced thickness portion is formed as a membrane.
    Type: Application
    Filed: January 2, 2004
    Publication date: October 21, 2004
    Inventors: Janos Bajnok, Andras Horvath, Sandor Lukacs