Patents by Inventor Robert Charles O'Handley

Robert Charles O'Handley 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).

  • Patent number: 4038073
    Abstract: A new series of glassy metal alloys with near-zero magnetostriction is disclosed. The glassy alloys have the composition (Co.sub.x Fe.sub.1.sub.-x).sub.a B.sub.b C.sub.c, where x ranges from about 0.84 to 1.0, a ranges from about 78 to 85 atom percent, b ranges from about 10 to 22 atom percent and c ranges from 0 to 12 atom percent, with the proviso that the sum of b and c ranges from about 15 to 22 atom percent. The magnetostriction of these alloys ranges from about +5 .times. 10.sup.-.sup.6 to -5 .times. 10.sup.-.sup.6 and the saturation induction is at least about 10 kGauss. The transition metal content is responsible for the low magnetostriction in these alloys, as well as their high saturation induction. The metalloid content (needed to stabilize the glassy state which is one of low anisotropy) strongly affects the saturation induction and Curie temperature, but not the magnetostriction.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: July 26, 1977
    Assignee: Allied Chemical Corporation
    Inventors: Robert Charles O'Handley, Ethan Allen Nesbitt, Lewis Isaac Mendelsohn