Patents by Inventor Christian Dorval

Christian Dorval 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).

  • Mechanical connection between a primary nut and secondary nut
    Patent number: 8052084
    Abstract: The assembly comprises a first and a second nut intended to cooperate with a screw in particular provided in an adjustable tailplane actuator for an aircraft, and a mechanical connection between the first and the second nut comprising means for fusible driving of the second nut by the first nut, in which the mechanical connection also comprises adjustable spacing means forming a wedge between the first and second nuts.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: November 8, 2011
    Assignee: Goodrich Actuation Systems SAS
    Inventors: Isabelle Port-Robach, Raphaël Medina, Christian Dorval, Rui Amaral
  • Mechanical connection between a primary nut and secondary nut
    Publication number: 20090041561
    Abstract: The assembly comprises a first and a second nut intended to cooperate with a screw in particular provided in an adjustable tailplane actuator for an aircraft, and a mechanical connection between the first and the second nut comprising means for fusible driving of the second nut by the first nut, in which the mechanical connection also comprises adjustable spacing means forming a wedge between the first and second nuts.
    Type: Application
    Filed: May 9, 2008
    Publication date: February 12, 2009
    Inventors: Isabelle Port-Robach, Raphael Medina, Christian Dorval, Rui Amaral
  • Use of an electrified pin to detect load transfer to a secondary nut in a screw actuator
    Patent number: 7353723
    Abstract: The invention relates to an actuator for actuating a moving member, said actuator essentially comprising a screw and at least two nuts engaged on the screw, relative movement between the screw and the nuts generating said actuation, said actuator further comprising a pin through which an electrical link passes, a force-transmitting element placed in the path of the force between the screw and the moving member via one of the nuts, and a mechanical extension of said force-transmitting element that extends to the vicinity of the other nut, the pin passing both through the mechanical extension and through an element coupled to the other nut so that any abnormal shift in the force-transmitting element relative to the screw results in shear between its mechanical extension and the element coupled to the other nut, causing the pin to break and causing the electrical link to be broken.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: April 8, 2008
    Assignee: Goodrich Actuation System SAS
    Inventors: Pascal Lardy, Patrice Nevoret, Olivier Pansanel, Christian Dorval
  • Use of an electrified pin to detect load transfer to a secondary nut in a screw actuator
    Publication number: 20050016305
    Abstract: The invention relates to an actuator for actuating a moving member, said actuator essentially comprising a screw and at least two nuts engaged on the screw, relative movement between the screw and the nuts generating said actuation, said actuator further comprising a pin through which an electrical link passes, a force-transmitting element placed in the path of the force between the screw and the moving member via one of the nuts, and a mechanical extension of said force-transmitting element that extends to the vicinity of the other nut, the pin passing both through the mechanical extension and through an element coupled to the other nut so that any abnormal shift in the force-transmitting element relative to the screw results in shear between its mechanical extension and the element coupled to the other nut, causing the pin to break and causing the electrical link to be broken.
    Type: Application
    Filed: September 11, 2003
    Publication date: January 27, 2005
    Inventors: Pascal Lardy, Patrice Nevoret, Olivier Pansanel, Christian Dorval