Patents by Inventor Robert L. McNellis

Robert L. McNellis 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: 4482580
    Abstract: A method for forming a multilayered electroluminescent device having dielectric layers sandwiched between two electrodes. One dielectric layer includes phosphor particles dispersed throughout. Each dielectric layer is subjected to three distinct heat levels: a preheat temperature level; a fusing temperature heat level; and a cooling/heat temperature level which enables the contiguous layers to gradually cool into fusion. One electrode may be a solid substrate which is fused to a contiguous dielectric layer and the other electrode substance may be sprayed in a liquid state onto the surface of the phosphor-dielectric layer when it is also in a liquified state after being cooled to the cooling/heat level prior to solidifying. The illuminating phosphors are mixed in the liquified dielectric material just prior to forming the phosphor-dielectric layer and applying the three heat levels thereto.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: November 13, 1984
    Inventors: Manley D. Emmett, Robert L. McNellis