Patents by Inventor Joseph E. Nitsche

Joseph E. Nitsche 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).

  • Metallized glass-ceramic cooking vessels exhibiting extended service life
    Patent number: 4194042
    Abstract: Aluminum-coated glass-ceramic cooking vessels exhibiting extended service life under use conditions are provided by limiting the ultimate tensile strength of the heat-distributing aluminum coating.
    Type: Grant
    Filed: September 21, 1978
    Date of Patent: March 18, 1980
    Assignee: Corning Glass Works
    Inventors: Harold F. Dates, Joseph E. Nitsche
  • Process for making aluminum-coated glass-ceramic cooking vessel and article produced thereby
    Patent number: 4056650
    Abstract: Aluminum-coated glass-ceramic cookware of improved performance and durability is provided by a process comprising selecting a glass-ceramic vessel of specified strength and expansion characteristics, preheating the surface of the vessel to a temperature in the range of about 120.degree.-600.degree. C., flame-spraying molten powdered aluminum metal onto the surface of the vessel, optionally heat-treating the thus-coated vessel to provide an aluminum metal coating of excellent adherence and good thermal conductivity thereon, providing the aluminum coating with a film of phosphoric acid and heating said aluminum coating and film to a temperature at least sufficient to decompose the phosphoric acid. A supplemental oxide film may also be applied to protect the aluminum metal coating.
    Type: Grant
    Filed: August 9, 1976
    Date of Patent: November 1, 1977
    Assignee: Corning Glass Works
    Inventors: Harold F. Dates, Joseph J. Domicone, Joseph E. Nitsche