Patents by Inventor Julien Pruss

Julien Pruss 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).

  • Variable damping of haptic feedback for a flight-attitude changing linkage of an aircraft
    Patent number: 8240617
    Abstract: The present invention relates to haptic feedback for operating at least one manual flight control device (21) for controlling the cyclic pitch of the blades (5) of a rotary wing (4) of a hybrid helicopter (1) via power assistance (27). Said operations of said control device (21) are defined according to a predetermined damping force relationship (A) that is a function of an instantaneous load factor of the hybrid helicopter (1) in such a manner that the instantaneous load factor is maintained between its minimum and maximum limit values in proportion to a position of a thrust control member (20) between its minimum and maximum thrust values (23, 22).
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: August 14, 2012
    Assignee: Eurocopter
    Inventors: Romuald Biest, Bernard Gemmati, Julien Pruss
  • VARIABLE DAMPING OF HAPTIC FEEDBACK FOR A FLIGHT-ATTITUDE CHANGING LINKAGE OF AN AIRCRAFT
    Publication number: 20110024551
    Abstract: The present invention relates to haptic feedback for operating at least one manual flight control device (21) for controlling the cyclic pitch of the blades (5) of a rotary wing (4) of a hybrid helicopter (1) via power assistance (27). Said operations of said control device (21) are defined according to a predetermined damping force relationship (A) that is a function of an instantaneous load factor of the hybrid helicopter (1) in such a manner that the instantaneous load factor is maintained between its minimum and maximum limit values in proportion to a position of a thrust control member (20) between its minimum and maximum thrust values (23, 22).
    Type: Application
    Filed: July 15, 2010
    Publication date: February 3, 2011
    Applicant: EUROCOPTER
    Inventors: Romuald Biest, Bernard Gemmati, Julien Pruss