Patents by Inventor Harold K. Nelson

Harold K. Nelson 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: 4269070
    Abstract: A variable reluctance transducer assembly for measuring the strain deflection in a structural member includes an elongate housing which is mounted to a first lug extending transversely outwardly from the structural member. The housing supports a pair of magnetic cores in spaced parallel relationship to each other. Each core in turn supports a wire coil. The coils are wired to each generate a magnetic field when energized by an electric current. The transducer assembly is also composed of an elongate target mounted on a second lug extending transversely from the structural member at a location longitudinally spaced from the other lug. The target includes a plate portion which extends longitudinally toward the housing to lie nominally between the two spaced apart cores and their corresponding coils to form a portion of the path along which the magnetic lines of flux eminating for each of the two coils travels.
    Type: Grant
    Filed: September 28, 1979
    Date of Patent: May 26, 1981
    Assignee: Weico Corporation
    Inventors: Harold K. Nelson, Charles A. Kleingartner, LeRoy E. Vetsch
  • Patent number: RE32746
    Abstract: A variable reluctance transducer assembly for measuring the strain deflection in a structural member includes an elongate housing which is mounted to a first lug extending transversely outwardly from the structural member. The housing supports a pair of magnetic cores in spaced parallel relationship to each other. Each core in turn supports a wire coil. The coils are wired to each generate a magnetic field when energized by an electric current. The transducer assembly is also composed of an elongate target mounted on a second lug extending transversely from the structural member at a location longitudinally spaced from the other lug. The target includes a plate portion which extends longitudinally toward the housing to lie nominally between the two spaced apart cores and their corresponding coils to form a portion of the path along which the magnetic lines of flux eminating for each of the two coils travels.
    Type: Grant
    Filed: January 9, 1987
    Date of Patent: September 13, 1988
    Assignee: Weico Corporation
    Inventors: Harold K. Nelson, Charles A. Kleingartner, LeRoy E. Vetsch