Patents by Inventor John Jefferson Mason

John Jefferson Mason 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).

  • Low expansion alloys
    Patent number: 3971677
    Abstract: Low expansion alloys consisting essentially of Ni-Fe-Ti and optionally containing Co and/or Nb are provided which in the as-cast, age hardened condition have a thermal expansion coefficient between 20.degree. and 300.degree.C of less than 6 .times. 10.sup..sup.-6 /.degree.C and a 0.2% proof stress at 20.degree.C higher than 350 N/mm.sup.2.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: July 27, 1976
    Assignee: The International Nickel Company, Inc.
    Inventors: John Jefferson Mason, Peter John Penrice
  • Method of producing low expansion alloys
    Patent number: 3954509
    Abstract: A process for producing carbidic low expansion alloy which is especially useful as a cast structure requiring close dimensional tolerances is comprised of about 21 to about 55% nickel, up to about 18% cobalt, from about 0.3 to about 2.5% carbon, up to about 3% chromium, from about 0.2 to about 1.2% vanadium, up to about 3% molybdenum, up to about 2% zirconium, niobium and tungsten, and the balance essentially iron, with the provisos:% Ni + 0.75 (% Co) = 30.5 to 55,Cr + Mo + V + Zr + Nb + W = 1 to 4Ni : Fe .gtoreq. 0.4:1.
    Type: Grant
    Filed: August 11, 1975
    Date of Patent: May 4, 1976
    Assignee: The International Nickel Company, Inc.
    Inventors: David Francis Lupton, John Jefferson Mason, Peter John Penrice
  • Low expansion alloys
    Patent number: 3940295
    Abstract: A carbidic low expansion alloy which is especially useful as a cast structure requiring close dimensional tolerances is comprised of about 21 to about 55% nickel, up to about 18% cobalt, from about 0.3 to about 2.5% carbon, up to about 3% chromium, from about 0.2 to about 1.2% vanadium, up to about 3% molybdenum, up to about 2% zirconium, niobium and tungsten, and the balance essentially iron, with the provisos:% Ni + 0.75 (% Co) = 30.5 to 55, Cr + Mo + V + Zr + Nb + W = 1 to 4 Ni : Fe .gtorsim. 0.4:1.
    Type: Grant
    Filed: October 25, 1974
    Date of Patent: February 24, 1976
    Assignee: The International Nickel Company, Inc.
    Inventors: David Francis Lupton, John Jefferson Mason, Peter John Penrice