Patents by Inventor LeRoy R. Curwick

LeRoy R. Curwick 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).

  • Nickel-chromium-iron alloy
    Patent number: 4401622
    Abstract: A nickel-chromium-iron alloy intended principally for automotive turbocharger applications, the alloy being characterized by good stress - rupture strength, ductility, tensile strength, etc. and containing, generally speaking, 10-15% Cr, 18-30% Fe, 3-4.25% Ti, 2.25-3.5% Al, Ti+Al from 6 to 7.25%, ratio of Ti to Al of at least 0.9 and up to 1.6, 4-6% Mo, 0.01-0.2% B, 0.03-0.3% C, balance essentially nickel.
    Type: Grant
    Filed: April 20, 1981
    Date of Patent: August 30, 1983
    Assignees: The International Nickel Co., Inc., Howmet Corporation
    Inventors: Raymond C. Benn, John R. Mihalisin, Leroy R. Curwick, Howard F. Merrick
  • Dispersion-strengthened nickel-base alloy
    Patent number: 4386976
    Abstract: An oxide dispersion-strengthened, nickel-base alloy containing special amounts of chromium, aluminum, tungsten, molybdenum and yttria has a combination of strength properties over a range of temperatures, together with substantial corrosion resistance.
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: June 7, 1983
    Assignee: Inco Research & Development Center, Inc.
    Inventors: Raymond C. Benn, LeRoy R. Curwick, Kenneth R. Andryszak
  • Nickel-based alloy
    Patent number: 4358318
    Abstract: Nickel-base alloy containing chromium, aluminum, titanium, molybdenum, cobalt and tungsten has combination of strength and ductility at elevated temperatures, particularly including stress-rupture strength at 980.degree. C. and ductility at 760.degree. C., along with resistance against oxidation and to hot corrosion by combustion products from jet engine fuels. The alloy is especially useful in production of gas turbine rotor blade castings.
    Type: Grant
    Filed: May 13, 1980
    Date of Patent: November 9, 1982
    Assignee: The International Nickel Company, Inc.
    Inventors: Howard F. Merrick, LeRoy R. Curwick, Raymond C. Benn
  • Nickel based alloy
    Patent number: 4127410
    Abstract: Nickel-base alloy containing chromium, aluminum, titanium and molybdenum, and desirably including cobalt and metal from group tungsten and tantalum, has combination of strength and ductility at elevated temperatures, particularly including stress-rupture strength at 1800.degree. F. and ductility at 1400.degree. F., along with resistance against oxidation and to hot corrosion by combustion products from jet propulsion fuels. Alloy is especially useful in production of gas turbine rotor blade castings.
    Type: Grant
    Filed: November 16, 1976
    Date of Patent: November 28, 1978
    Assignee: The International Nickel Company, Inc.
    Inventors: Howard F. Merrick, LeRoy R. Curwick