Patents by Inventor John Francis Brennan

John Francis Brennan 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).

  • Alloys containing insoluble phases and method of manufacturing thereof
    Patent number: 5858132
    Abstract: The invention provides a new method for casting alloys containing a finely divided phase. A bath of the molten metal having a melting point is provided. A finely divided solid metal having a melting point greater than the melting point of molten metal is introduced into the molten metal. The finely divided metal is reacted with the molten metal to form a solid phase within the molten metal. The molten bath is then mixed to distribute the solid phase within the molten metal. The molten alloy is then cast into a solid object containing the solid phase. The solid phase is insoluble in the matrix and has a size related to the initial size of the finely divided solid. The alloy of the invention advantageously consists essentially of, by weight percent, about 3 to 40 aluminum, about 0.8 to 25 nickel, about 0 to 12 copper and balance zinc and incidental impurities. The alloy has a zinc-containing matrix with nickel-containing aluminides distributed throughout the matrix.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: January 12, 1999
    Assignee: Inco Limited
    Inventors: Malcolm Charles Evert Bell, James Alexander Evert Bell, Carlos Manuel Diaz, Thijs Eerkes, Thomas Francis Stephenson, Scott Thomas Campbell, John Francis Brennan, Anthony Edward Moline Warner
  • Alloys containing insoluble phases and method of manufacture thereof
    Patent number: 5765623
    Abstract: The invention provides a new method for casting alloys containing a finely divided phase. A bath of the molten metal having a melting point is provided. A finely divided solid metal having a melting point greater than the melting point of molten metal is introduced into the molten metal. The finely divided metal is reacted with the molten metal to form a solid phase within the molten metal. The molten bath is then mixed to distribute the solid phase within the molten metal. The molten alloy is then cast into a solid object containing the solid phase. The solid phase is insoluble in the matrix and has a size related to the initial size of the finely divided solid. The alloy of the invention advantageously consists essentially of, by weight percent, about 3 to 40 aluminum, about 0.8 to 25 nickel, about 0 to 12 copper and balance zinc and incidental impurities. The alloy has a zinc-containing matrix with nickel-containing aluminides distributed throughout the matrix.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: June 16, 1998
    Assignee: Inco Limited
    Inventors: Malcolm Charles Evert Bell, James Alexander Evert Bell, Carlos Manuel Diaz, Thijs Eerkes, Thomas Francis Stephenson, Scott Thomas Campbell, John Francis Brennan, Anthony Edward Moline Warner