Patents by Inventor Laurent Girard

Laurent Girard 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 and device for filtering the vibratory excitations transmitted between two parts especially between the rotor and the fuselage of a helicopter
    Patent number: 5316240
    Abstract: The present invention relates to a device for elastic linking between two parts (3, 5) in order to filter the vibratory excitations which are transmitted from one to the other, comprising:at least one linking element (7) between said parts (3, 5) comprising a transmission member (8) for the static force between said parts (3, 5), and an actuator (9) associated with said transmission member (8),at least one means of measurement (10) of a physical quantity which is representative of said vibratory excitations, and able to supply corresponding first signals, andelectronic processing means (12) for said first signals in order to convert them into second control signals for said actuator (9).According to the invention, said measurement means (10) is mounted on said linking element (7).
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: May 31, 1994
    Assignee: Aerospatiale Societe Nationale Industrielle
    Inventors: Laurent Girard, Tomasz Krysinski, Pierre Michel