Patents by Inventor Kenneth L. Hull

Kenneth L. Hull 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).

  • Radiation detector using a bulk high T.sub.c superconductor
    Patent number: 5268577
    Abstract: A radiation detector (10) is provided, wherein a bulk high T.sub.c superconducting sample (11) is placed in a magnetic field and maintained at a superconducting temperature. Photons of incident radiation will cause localized heating in superconducting loops of the sample destroying trapped flux and redistributing the fluxons, and reducing the critical current of the loops. Subsequent cooling of the sample in the magnetic field will cause trapped flux redistributed Abrikosov fluxons and trapped Josephson fluxons. The destruction and trapping of the fluxons causes changes in the magnetization of the sample inducing currents in opposite directions in a pickup coil (12) which is coupled by an input coil (15) to an rf SQUID (16).
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: December 7, 1993
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Joseph F. Artuso, Larry A. Franks, Kenneth L. Hull, Orest G. Symko