Patents by Inventor Jean-Pierre Chopard

Jean-Pierre Chopard 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).

  • Method for making a moineau stator and resulting stator
    Patent number: 6872061
    Abstract: The invention concerns a Moineau type gear pump stator (1), comprising a stator cavity with global axial extension inside an elongated body, characterised in that the stator cavity is defined by a rigid-walled metal tubular element (3) having internall the shape and dimensions of the stator cavity such that, when it is assembled with a rotor, a positive clearance with the rotor is obtained.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: March 29, 2005
    Assignee: PCM Pompes
    Inventors: Lionel Lemay, Jean-Pierre Chopard
  • Method for making a moineau stator and resulting stator
    Publication number: 20040126257
    Abstract: The invention concerns a Moineau type gear pump stator (1), comprising a stator cavity with global axial extension inside an elongated body, characterised in that the stator cavity is defined by a rigid-walled metal tubular element (3) having internally the shape and dimensions of the stator cavity such that, when it is assembled with a rotor, a positive clearance with the rotor is obtained.
    Type: Application
    Filed: November 18, 2003
    Publication date: July 1, 2004
    Inventors: Lionel Lemay, Jean-Pierre Chopard
  • Air carrier steerage control device
    Patent number: 6042056
    Abstract: An apparatus and corresponding method, useful for any type of aircraft, aerostat or space vehicle, for controlling a direction of movement of an air carrier includes a source of energy, at least one rudder, at least one actuator acting on the rudder and a control logic for controlling the actuator, wherein the force exerted by the actuator on the rudder is controlled.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: March 28, 2000
    Assignee: Delegation Generale pour l'Armement
    Inventor: Jean-Pierre Chopard