Patents by Inventor Thomas J. Maskell

Thomas J. Maskell 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).

  • Method of manufacturing a slide gate
    Patent number: 4554035
    Abstract: A refractory slide gate for a container dispensing molten material is comprised of a metal-supporting can filled with a low-fired coherent bonded refractory. The refractory is formed into a coherent refractory body within the metal supporting can and is directly affixed thereto, without the use of refractory mortar. An orifice through the refractory controls the flow of molten material.
    Type: Grant
    Filed: March 15, 1984
    Date of Patent: November 19, 1985
    Assignee: General Refractories Company
    Inventors: Joseph L. Stein, Thomas J. Maskell
  • Slide gate
    Patent number: 4383624
    Abstract: A refractory slide gate for a container dispensing molten material is comprised of a metal-supporting can filled with a low-fired coherent bonded refractory. The refractory is formed into a coherent refractory body within the metal supporting can and is directly affixed thereto, without the use of refractory mortar. An orifice through the refractory controls the flow of molten material.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: May 17, 1983
    Assignee: General Refractories Company
    Inventors: Joseph L. Stein, Thomas J. Maskell