Patents by Inventor Shri N. Singh

Shri N. Singh 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).

  • Apparatus for injection of inert gas to prevent superspeed effect
    Patent number: 4199087
    Abstract: An apparatus for regulating the rate at which molten metal is supplied from a receiving vessel, through a pouring tube, to the mold of a continuous casting apparatus or the like. The described apparatus is particularly adapted to overcome irregularities that occur in the molten metal as it flows through the pouring tube, such irregularities being known as "superspeed effect". A method is also described for effectively using the disclosed apparatus.
    Type: Grant
    Filed: January 25, 1978
    Date of Patent: April 22, 1980
    Assignee: United States Steel Corporation
    Inventors: Eugene A. Golas, William A. Sech, Shri N. Singh
  • Method and single piece annular nozzle to prevent alumina buildup during continuous casting of al-killed steel
    Patent number: 4117959
    Abstract: A pour passage of particular configuration for controlling the flow of aluminum-killed steels, or the like, is described which is effective for preventing the accumulation of oxide inclusions in an orifice opening disposed in the pour passage. The described pour passage configuration may be formed in a replaceable nozzle insert that is mountable in the pour opening of a molten metal teeming vessel or in the slidable panel of a sliding gate valve operably associated with the vessel. A method of preventing inclusion accumulation in a control orifice opening when pouring aluminum-killed steels or the like is also described.
    Type: Grant
    Filed: May 5, 1977
    Date of Patent: October 3, 1978
    Assignee: United States Steel Corporation
    Inventors: Eugene A. Golas, Shri N. Singh
  • Method and single piece annular nozzle to prevent alumina buildup during continuous casting of Al-killed steel
    Patent number: RE30343
    Abstract: A pour passage of particular configuration for controlling the flow of aluminum-killed steels, or the like, is described which is effective for preventing the accumulation of oxide inclusions in an orifice opening disposed in the pour passage. The described pour passage configuration may be formed in a replaceable nozzle insert that is mountable in the pour opening of a molten metal teeming vessel or in the slidable panel of a sliding gate valve operably associated with the vessel. A method of preventing inclusion accumulation in a control orifice opening when pouring aluminum-killed steels or the like is also described.
    Type: Grant
    Filed: March 16, 1979
    Date of Patent: July 22, 1980
    Assignee: United States Steel Corporation
    Inventors: Eugene A. Golas, Shri N. Singh