Patents by Inventor Bradley C. Roth

Bradley C. Roth 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).

  • Shielding means for use with electromagnetic balance
    Patent number: 4878552
    Abstract: For use with weighting apparatus of the electromagnetic-load-compensation type, where a stirring or other magnet creating an external magnetic field is disposed near such apparatus, a protective shield is interposed between that magnet and the apparatus, in flux-transmitting relation to the magnet, so as to shield the apparatus from the externally created field. The shield is formed from ferromagnetic material of sufficiently high permeability to provide a path of least reluctance for transmitting flux from the external field, thereby preventing such flux from interfering with intended operation of the apparatus.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: November 7, 1989
    Assignee: Eastman Kodak Company
    Inventors: Charles H. Gebo, Bradley C. Roth
  • Shielding method for use with electromagnetic balance
    Patent number: 4836293
    Abstract: For use with weighing apparatus of the electromagnetic-load-compensation type, where a stirring or other magnet creating an external magnetic field is disposed near such apparatus, a protective shield is interposed between that magnet and the apparatus, in flux-transmitting relation to the magnet, so as to shield the apparatus from the externally created field. The shield is formed from ferromagnetic material of sufficiently high permeability of provide a path of least reluctance for transmitting flux from the external field, thereby preventing such flux from interfering with intended operation of the apparatus.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: June 6, 1989
    Assignee: Eastman Kodak Company
    Inventors: Charles H. Gebo, Bradley C. Roth