Patents by Inventor Jean-Pierre Ricouard

Jean-Pierre Ricouard 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: 5513611
    Abstract: A throttle control system includes a pedal (10) and a mechanical linkage , 12, 13) to a casing (6). Stepper motor (5) has a stator mounted on the casing (6), so that as the casing (6) is rotated, it will also move the stator of the stepper motor (5). Stepper motor (5) also controls the position of a shaft (4) which carries a butterfly valve (1) regulating the fuel flow in an internal combustion engine. Position sensor (8) senses angular changes of position between casing (6) and shaft (4). Position changes in shaft (4) resulting from operation of pedal (10) and linkage (11, 12, 13) are signalled to microprocessor (7) which operates motor (5) to provide corrective rotation of shaft (4).
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: May 7, 1996
    Assignee: Societe d'Applications Generales d'Electricite et de Mecanique (SAGEM)
    Inventor: Jean-Pierre Ricouard
  • Patent number: 4357652
    Abstract: A motor-car headlight with a built-in static relay.The headlight lamp is connected in series with a power phototransistor with which it is optically coupled. Turn on and turn off of the phototransistor is effected by temporarily changing the base voltage.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: November 2, 1982
    Assignee: U.S. Philips Corporation
    Inventors: Jean-Pierre R. Coulmance, Jean-Pierre Ricouard
  • Patent number: 4204158
    Abstract: A device for detecting specific positions of a moving part, for example a rapidly rotating part provided with soft-magnetic projecting elements which alternately pass close to the detector device, which comprises a stationary magnetic exciter circuit for a Hall-effect crystal.The magnetic exciter circuit comprises a single permanent magnet having one pole face oriented towards the moving part, and provided with two symmetrical soft-magnetic pole pieces forming a narrow gap in which the Hall-effect crystal is disposed.
    Type: Grant
    Filed: March 30, 1978
    Date of Patent: May 20, 1980
    Assignee: U.S. Philips Corporation
    Inventors: Jean-Pierre Ricouard, Bruno Schorter
  • Patent number: 4086533
    Abstract: A device for determining the angular position of a rotating part includes first and second parallel arranged magnets forming a symmetric magnetic excitation circuit with a Hall-effect element disposed on the axis thereof. The rotating part has first and second elements made of a soft magnetic material which are angularly displaced so as to alternately pass by the first and second magnets, respectively, to produce first and second oppositely directed transverse magnetic field components, H, at the Hall-effect element which thereby generates a signal whose polarity reverses to indicate angular position of the rotating part.
    Type: Grant
    Filed: November 8, 1976
    Date of Patent: April 25, 1978
    Assignee: U.S. Philips Corporation
    Inventors: Jean-Pierre Ricouard, Bruno Schorter