Patents by Inventor Laetitia Pollet

Laetitia Pollet 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).

  • Vibration damper for a turbomachine rotor vane
    Patent number: 11333027
    Abstract: A turbomachine rotor has a disk carrying vanes, each vane having a blade linked by a platform to a root. For at least one vane, a recess is defined between the platform and the disk, and a vibration damper is mounted in the recess. The vibration damper includes a first structural portion configured to contact the platform of which the vibrations are to be dampened, and a second mass portion configured to dampen these vibrations. The second mass portion is a powder and the first structural portion is a box containing the powder.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: May 17, 2022
    Assignee: SAFRAN HELICOPTER ENGINES
    Inventor: Laetitia Pollet
  • VIBRATION DAMPER FOR A TURBOMACHINE ROTOR VANE
    Publication number: 20210180460
    Abstract: A turbomachine rotor has a disk carrying vanes, each vane having a blade linked by a platform to a root. For at least one vane, a recess is defined between the platform and the disk, and a vibration damper is mounted in the recess. The vibration damper includes a first structural portion configured to contact the platform of which the vibrations are to be dampened, and a second mass portion configured to dampen these vibrations. The second mass portion is a powder and the first structural portion is a box containing the powder.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 17, 2021
    Applicant: SAFRAN HELICOPTER ENGINES
    Inventor: Laetitia Pollet