Patents by Inventor Andras Czeiler

Andras Czeiler 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).

  • Process of surface treating luminescent materials
    Patent number: 4689172
    Abstract: The luminescent material(s) optionally composed of more color components are suspended in the solution of active agent(s) and treated with 0.5 to 10% by weight of glass forming acid or a mixture thereof, preferably boric acid or phosphoric acid calculated on the weight of the luminescent material. Then a solution comprising 1 to 15% by weight of aliphatic amines calculated on the weight of the luminescent materials is added and the mixture thus obtained is homogenized.
    Type: Grant
    Filed: May 14, 1986
    Date of Patent: August 25, 1987
    Assignee: Tungsram Reszvenytarsasag
    Inventors: Andras Czeiler, Sandor Lukacs, Tamas Palotai, Tibor Lakatos, Gyorgy Bakdos
  • Apparatus for electrostatic spraying of the insides of lamp envelopes
    Patent number: 4610217
    Abstract: An apparatus for electrostatic spray coating of the insides of light transmissive lamp envelopes, comprising a stand, a turntable mounted on the stand for receiving pairs of the envelopes, gas burners for preheating the envelopes and burning in the sprayed coating layer and serving as an electrode to ground the envelopes, a dust generator for preparing and homogenizing, with a rotary chopper, the particles of the dust to be sprayed on the envelopes as the coating layer, spray guns with dust conduits connected to an exhaust system for collecting the particles of dust not bound in the layer and made free during spraying. The apparatus further comprises an electrostatic voltage source connected to the nozzles of the spray guns for negatively charging the dust particles so that the particles are electrostatically attracted to the envelopes, and elements to allow cleaning of the apparatus.
    Type: Grant
    Filed: December 7, 1984
    Date of Patent: September 9, 1986
    Assignee: Tungsram Reszvenytarsasag
    Inventors: Andras Czeiler, Miklos Keri, Bela Balogh, Erno Fejes, Istvan Kallai, Sandor Lukacs
  • Glass envelope for electric light sources
    Patent number: 4421803
    Abstract: An improved glass envelope for electric light sources is described comprising an outer glass body and a thin glass matrix solidly attached to the glass body and comprising pigment grains fully embedded in the glass matrix. A precursor solution is formed from an organic solvent and a metalorganic and/or inorganic composition suitable for forming a glass having a softening point lower than that of the glass body. The surfaces of pigment grains are coated with the precursor solution and the solvent is evaporated from the pigment grains for obtaining pigment grains covered with a glass layer. The surface of the glass body is covered with the coated pigment grains and then baked at a temperature below the softening point of the glass body.The resulting glass envelopes have decreased light absorption and provide for higher light efficiency and extend life times of the electric light sources.
    Type: Grant
    Filed: December 11, 1979
    Date of Patent: December 20, 1983
    Assignee: Egyesult Izzolampa es Villamossagi Rt.
    Inventors: Andras Czeiler, Istvan Kallai, Laszlo Simenfalvi