Patents by Inventor Ernest J. Ferron

Ernest J. Ferron 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: 4499810
    Abstract: The invention relates to an obturator designed to close the cavity provided next to the mouthpiece hole of a flute or similar instrument, which obturator comprises one auxiliary resonator issuing into the column of air and produced in the form of a chamber the length of which can be adjusted to improve the emission of at least one particular note of the instrument.
    Type: Grant
    Filed: June 21, 1983
    Date of Patent: February 19, 1985
    Inventor: Ernest J. Ferron