Patents by Inventor Bertalan Fleischer

Bertalan Fleischer 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: 4020534
    Abstract: The invention concerns monitoring of stems of electrical light sources during manufacture. Each stem is positioned or passes between two nozzles blowing compressed air in a direction where a hole in the pinch should be. The parallel axes of symmetry of the nozzles are arranged in a common plane, to intercept at an angle of or less than 180.degree., there being an angle of at most 85.degree. between the common plane and a reference plane that is perpendicular to the axis of symmetry of the stem. A flow-sensing device is disposed above the nozzles. Flow of compressed air detected by the device is indicative of stem quality, that is the presence of a hole on at least one side of the pinch and, is thus used to separate satisfactory stems from unsatisfactory ones.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: May 3, 1977
    Assignee: Egyesult Izzolampa Es. Villamossagi Resveny tarsasag
    Inventors: Bertalan Fleischer, Otto Gaal, Sandor Lengyel, Gyula Pioker