Patents by Inventor Alain Barbe

Alain Barbe 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).

  • Omnidirectional electro-accoustical chamber
    Patent number: 5086871
    Abstract: Omnidirectional electro-acoustical chamber comprising two transducers (4) for low/medium tones and (7) for shrill tones disposed coaxially with their membranes facing one another, the transducer (4) being maintained at the end of the extensions (2) of a compartment (1) and the transducer (7) at the end of the compartment (5), a portion of the sounds emitted by the transducers (4, 7) being diffused by means of a diffuser (9) placed between the membranes, the other portion being reflected on the surfaces (12, 13) of the compartments (1, 5).
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: February 11, 1992
    Inventor: Alain Barbe