Patents by Inventor Robert Rigondeau

Robert Rigondeau 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: 6111972
    Abstract: An electroacoustic transducer includes a low density diffusing volume which supports on its periphery at least one electrically conductive circuit through which an electric signal representative of the signal to be emitted passes. Magnets are mechanically connected to the diffusing volume's periphery. The magnets provide a magnetic field whose field lines surround the conductive circuits which is positioned on the diffusing volume's periphery. Several embodiments are presented, as well as several modes of electrical connections between the circuit emitting the electrical signals and the conductive circuits.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: August 29, 2000
    Assignee: Jean Marie Bernard Paul Verdier
    Inventor: Robert Rigondeau