Patents by Inventor Richard J Herold

Richard J Herold 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).

  • Magnet retention system in planar loudspeakers
    Patent number: 7627134
    Abstract: An electro-dynamic loudspeaker includes a frame, a magnet and a diaphragm. The frame includes a body portion defining a magnet mounting surface as well as a plurality of protrusions extending from the magnet mounting surface. The magnet is magnetically attracted to the body portion of the frame. The magnet is restricted from movement along the magnet mounting surface by at least one protrusion. The diaphragm is spaced apart from the magnet and coupled to the frame.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: December 1, 2009
    Assignee: Harman International Industries, Incorporated
    Inventors: David B Garner, Richard J Herold