Patents by Inventor Kevin James Durand

Kevin James Durand 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).

  • Heat treatment of iron-nickel-phosphorus-boron glassy metal alloys
    Patent number: 4081298
    Abstract: A process is provided for improving magnetic properties of certain glassy metal alloys which comprises immersing toroidally wound cores of glassy metal alloy filaments in a thermally stable, nonferromagnetic, electrically inert and chemically unreactive liquid, maintaining the liquid at a temperature of between about 310.degree. and 350.degree. C for about 3/4 to 8 hrs., depending on the temperature selected, and cooling the filament to about 25.degree. C at a rate not greater than about 30.degree. C/min. through its Curie temperature. Optionally, a magnetic field of about 1 to 10 Oe may be applied circumferentially around the cores during cooling through the Curie temperature to further improve the magnetic properties of the glassy metal alloy.
    Type: Grant
    Filed: September 7, 1976
    Date of Patent: March 28, 1978
    Assignee: Allied Chemical Corporation
    Inventors: Lewis Isaac Mendelsohn, Kevin James Durand, Ethan Allen Nesbitt