Patents by Inventor Gerald Schiazzano

Gerald Schiazzano 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: 5122710
    Abstract: A phosphor blend for a fluorescent lamp having four rare earth phosphors, each of which emits a narrow band of visible light energy in the visible spectrum. The color of the light produced by three of the phosphors is red, blue and green. The fourth phosphor producing light in the blue-green range improves the color rendering index of the visible light output without seriously afflecting the lumen output as compared to a blend in which only the red-blue-green phosphors are used. A fifth rare earth narrow band phosphor capable of producing energy in the ultraviolet A range can be added to the blend when it is desired to simulate various phases of natural daylight. The band of ultraviolet range energy produced can be smoothed by adding to the blend another phosphor capable of producing energy in the Ultraviolet A range.
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: June 16, 1992
    Assignee: Duro-Test Corporation
    Inventors: Donald Northrop, Gerald Schiazzano
  • Patent number: 4891550
    Abstract: A full spectrum fluorescent lamp having a phosphor coating for producing visible light having a high color rendering index and balanced amounts of ultraviolet energy at the same correlated color temperature in which the coating is formed of two groups of phosphors, the first producing the full spectrum when excited and the second narrow bands of visible light to improve the lumen output of the lamp.
    Type: Grant
    Filed: May 1, 1989
    Date of Patent: January 2, 1990
    Assignee: Duro-Test Corporation
    Inventors: Donald Northrop, Gerald Schiazzano, Arpad Pirovic