Patents by Inventor Jean-Marie Bertrand

Jean-Marie Bertrand 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).

  • Publication number: 20240151149
    Abstract: A fan module for an aircraft turbine engine, the module including a fan having variable-pitch blades and an oil transfer device for transferring oil between a stator and a rotor, the device including a stator ring having a cylindrical inner surface and internal oil ducts and a shaft engaged in the ring and having a cylindrical outer surface and internal oil ducts; the device includes a plain bearing located between said cylindrical inner surface and the cylindrical outer surface and defined by a single band; and rolling bearings mounted between the ring and the shaft, on either side of the plain bearing, each of these rolling bearings having one of the rings thereof integrated in one of the elements selected from the ring and the shaft.
    Type: Application
    Filed: March 15, 2022
    Publication date: May 9, 2024
    Inventors: Paul Ghislain Albert LEVISSE, Caroline Marie FRANTZ, Didier Gabriel Bertrand DESOMBRE, Christophe Marcel Lucien PERDRIGEON, Jean-Claude Christian TAILLANT
  • Patent number: 5088767
    Abstract: The tubular member (1) is integral with an assembly member (14) capable of sliding in a fixed U-shaped fitting and traversed by a tie bolt (20) guided in curved slots of the fitting. The tie bolt comprises a conical head (42) facing the conical surface (25) of a washer (24) for bearing against the fitting. Spacer balls (52), guided radially on these facing surfaces, the accommodated in inclined slots of a disc integrally connected to the control lever and displaced by the rotation of the latter about the tie bolt (20).
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: February 18, 1992
    Assignee: ECIA
    Inventors: Andre Hoblingre, Patrick Courvoisier, Jean-Marie Bertrand