Patents by Inventor Kalman Antal

Kalman Antal 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).

  • Plastic housing and base construction especially for compact fluorescent lamps and electronic operating units thereof
    Patent number: 5997354
    Abstract: Plastic housing and base construction, especially for compact fluorescent lamps and operating units thereof comprising a housing (1) which is a cup-like body and a base (2) having a metal base shell (26) and at least one metal central (3) or end contact part (4, 5). The base shell (26) is electrically insulated from the central (3) or end contact parts (4, 5). The base (2) also includes a plastic insert body (20) which is open at its upper end and closed at least partially at its lower end. The diameters of the plastic insert body (20) decrease in at least one step and it has a cylindrical or slightly conical mantle portion (24) in the region of its upper end. The base shell (26) includes a thread-free opening portion (27) the inner diameter of which fits to the mantle portion (24) of and is pulled over and fixed to the plastic insert body (20).
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: December 7, 1999
    Assignee: General Electric Company
    Inventors: Jozsef Fulop, Sandor Lukacs, Zoltan Vamos, Istvan Wursching, Ferenc Papp, Erzsebet Cserteg, Jozsef Tokes, Akos Ocsovai, Kalman Antal
  • Method of and equipment for ageing a low-pressure hot-cathode discharge light source, particularly a fluorescent lamp
    Patent number: 4898554
    Abstract: The ageing process of a low-pressure hot-cathode gas discharge light source, especially a fluorescent lamp is carried out by applying high alternating voltage being at least 8 times and at most 16 times higher than the burning voltage rating of the gas discharge light source after preheating electrodes thereof, whereby a short discharge arc is generated and then after changing the connecting arrangement of the input terminals of the electrodes the application of high alternating voltage is repeated.
    Type: Grant
    Filed: March 21, 1989
    Date of Patent: February 6, 1990
    Assignee: Tungsram Reszvenytarsasag
    Inventors: Kalman Antal, Bela Rimay, Ferenc Halasz
  • Process for flushing and filling a low pressure gas discharge light source
    Patent number: 4861302
    Abstract: A process for flushing and filling a low pressure gas discharge lamp which has an exhaust tube and discharge electrodes at each of its ends and which is provided with a discharge vessel for limiting or bounding the gas discharge, wherein the course of the process the discharge vessel is coupled via the exhaust tubes to a pumping apparatus. Flushing or fill gas is continually charged into the discharge vessel via one of the exhaust tubes and simultaneously via the other exhaust tube the gas is discharged in such a manner that within the discharge vessel an equilibrium pressure prevails which coincides with the final charging pressure of the lamp, while the flow rate of the flowing gas is expediently maintained at a constant value.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: August 29, 1989
    Assignee: Tungsram Reszvenytarsasag
    Inventors: Kalman Antal, Laszlo Ugrosdy, Bela Rimay