Patents by Inventor Pierre-Marie J. Hulot

Pierre-Marie J. Hulot 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).

  • Musical instrument with barrel
    Patent number: 4996902
    Abstract: A musical wind instrument, comprising a cylindrical barrel having an inlet hole (3) communicating with the mouthpiece (1) of the instrument, an outlet hole (5) communicating with the bell (12), a branch hole (6), a return hole (7), the branch hole (6) communicating with the return hole (7) via a circuit (13) for changing of tonality, and means (15, 16) for putting of the inlet hole (3) into communication selectively with the outlet hole (5) or with the branch hole (6), wherein the inlet hole (3) and the outlet hole (5) are at different levels along the axis (X,X') of the barrel.
    Type: Grant
    Filed: January 10, 1990
    Date of Patent: March 5, 1991
    Inventor: Pierre-Marie J. Hulot