Patents by Inventor Jean-Pierre Lecerf

Jean-Pierre Lecerf 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).

  • Electrofluidic transducer of the nozzle/plate type and hydraulic servo-valve equipped with such a transducer
    Patent number: 4705059
    Abstract: The transducer comprises a piezoelectric double-layer plate, the movements of which, under the effect of electrical signals, directly control the flow from one or two spray nozzles. The plate is mounted in a floating manner, without any fastening, between fixed supports of the knuckle-type which do not impede the free deformation (flexion or bending) of the plate. The invention makes it possible to increase the "signal-voltage/movement" ratio of the plate and reduce the hysteresis to obtain greater accuracy and reliability of response.
    Type: Grant
    Filed: June 6, 1986
    Date of Patent: November 10, 1987
    Assignee: Centre Technique des Industries Mecaniques
    Inventors: Jean-Pierre Lecerf, Charles Favey, Pierre Meurice