Patents by Inventor Jacques Fleury

Jacques Fleury 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).

  • Servo-steering control systems for vehicles
    Patent number: 4003446
    Abstract: A servo-steering control for a vehicle comprising a jack adapted to operate the steering mechanism including a source of fluid under pressure to supply the jack which fluid is under the control of a slide valve which in turn is controlled by means responsive to the angular separation between a drive shaft and a shaft connected to the steering mechanism; the shafts being connected for limited relative rotation.
    Type: Grant
    Filed: May 9, 1975
    Date of Patent: January 18, 1977
    Assignee: Societe Anonyme Automobiles Citroen
    Inventor: Jacques Fleury
  • Apparatus for measuring the electrical conductivity of a liquid
    Patent number: 3980946
    Abstract: In apparatus for measuring the electrical resistance of a liquid employing two parallel channels for the liquid, a single induction coil is located at one of the points of connection of the channels and a single measuring coil at the other of said points of connection. In this way, parasitic electric circuits in the liquid and mutual interaction between the coils are avoided. The coils are preferably arranged coaxially above respective circular passages connecting the parallel channels.
    Type: Grant
    Filed: April 4, 1975
    Date of Patent: September 14, 1976
    Assignee: Societe Anonyme Automobiles Citroen
    Inventor: Jacques Fleury