Patents by Inventor Bjarne S. Hansen

Bjarne S. Hansen 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).

  • Pick-up
    Patent number: 4310917
    Abstract: In a pick-up of the type having a relatively flat, square armature disposed perpendicularly to one end of a stylus arm and supported on one side by an elastic damping device which in turn is firmly supported by an air gap defining pole piece, selective damping is provided by the application of a particular damping device consisting of a disc shaped inertia body clamped between two rubber pads.
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: January 12, 1982
    Assignee: Ortofon Manufacturing A/S
    Inventors: Bjarne S. Hansen, Knud H. Andersen, Robert Gudmandsen
  • Compact moving-coil pickup of low weight and high quality
    Patent number: 4237349
    Abstract: In a moving-coil pickup having a flat, wound armature which is fixed to a stylus arm and is movably mounted in a magnet field produced by one or more permanent magnets, said magnet or magnets is/are so arranged as to define a relatively short tube within which the armature is mounted.
    Type: Grant
    Filed: December 28, 1978
    Date of Patent: December 2, 1980
    Assignee: Ortofon Manufacturing A/S
    Inventors: Bjarne S. Hansen, Robert Gudmandsen