Patents by Inventor Jean Mattei

Jean Mattei 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).

  • Axial-flow fan with by-pass pipe or pipes
    Patent number: 3951566
    Abstract: In a method of widening the zone of stable operation of an axial-flow fan, and of attenuating noise generated thereby, a portion of the flow medium is drawn off upstream of the fan and is returned to a zone at the periphery of the fan rotor. The invention also includes an axial-flow fan for carrying out the method.
    Type: Grant
    Filed: December 11, 1974
    Date of Patent: April 20, 1976
    Assignee: Electricite de France (Service National)
    Inventors: Jean Mattei, Bernard Simon, Ingrid Vuong nee Adlerberg