Patents by Inventor Sebastien Pascal

Sebastien Pascal 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).

  • Propulsion device having unducted counter-rotating and coaxial rotors
    Patent number: 9593582
    Abstract: A propulsion device including an unducted upstream propeller and a counter-rotating and coaxial downstream propeller. At least one blade of the upstream propeller is configured to generate a corotating secondary vortex for acting upstream of the downstream propeller to destabilize a blade tip vortex of the same at least one blade.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: March 14, 2017
    Assignees: SNECMA, CENAERO
    Inventors: Clement Marcel Maurice Dejeu, Sebastien Pascal, Jerome Talbotec, Michael Leborgne, Ingrid Irene Catherine Lepot
  • Blade, particularly variable-pitch blade, propellor comprising such blades and corresponding turbomachine
    Patent number: 9481449
    Abstract: A blade, configured to be mounted on a hub of a turbomachine propeller so that an empty space is defined between a base of the blade and a face of the hub facing the base. The blade includes a retractable blanking mechanism configured to reversibly occupy at least one of following two positions: a deployed position in which the retractable blanking mechanism at least partially closes off the empty space; and an extreme retracted position in which the retractable mechanism is kept out of the empty space.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: November 1, 2016
    Assignee: SNECMA
    Inventor: Sebastien Pascal
  • PROPULSION DEVICE HAVING UNDUCTED COUNTER-ROTATING AND COAXIAL ROTORS
    Publication number: 20140133982
    Abstract: A propulsion device including an unducted upstream propeller and a counter-rotating and coaxial downstream propeller. At least one blade of the upstream propeller is configured to generate a corotating secondary vortex for acting upstream of the downstream propeller to destabilize a blade tip vortex of the same at least one blade.
    Type: Application
    Filed: April 13, 2012
    Publication date: May 15, 2014
    Applicants: CENTRE DE RECHERCHE EN AERONAUTIQUE ASBL-CENAERO, SNECMA
    Inventors: Clement Marcel, Maurice Dejeu, Sebastien Pascal, Jerome Talbotec, Michael Leborgne, Ingrid Irene, Catherine Lepot
  • BLADE, PARTICULARLY VARIABLE-PITCH BLADE, PROPELLOR COMPRISING SUCH BLADES AND CORRESPONDING TURBOMACHINE
    Publication number: 20140112784
    Abstract: A blade, configured to be mounted on a hub of a turbomachine propeller so that an empty space is defined between a base of the blade and a face of the hub facing the base. The blade includes a retractable blanking mechanism configured to reversibly occupy at least one of following two positions: a deployed position in which the retractable blanking mechanism at least partially closes off the empty space; and an extreme retracted position in which the retractable mechanism is kept out of the empty space.
    Type: Application
    Filed: June 19, 2012
    Publication date: April 24, 2014
    Applicant: SNECMA
    Inventor: Sebastien Pascal