Patents by Inventor Bernard Jaugey

Bernard Jaugey 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).

  • Process for manufacturing a variable pitch multi-blade propeller by molding resin-impregnated fails around a preform
    Patent number: 4639284
    Abstract: A variable pitch multi-blade propeller suitable for use on a helicopter is constructed of a foam preform joined with a fibrous spar enclosed in resin-impregnated foils and fitted with a metal leading edge. Various components are assembled in a mold and the resins, then cured. The structure may further include a reinforcing yoke of carbon fiber fabrics preimpregnated with a polymerizable synthetic resin. The process may further include a heat treating step to effect polymerization.
    Type: Grant
    Filed: January 4, 1985
    Date of Patent: January 27, 1987
    Assignee: Societe Nationale Industrielle Aerospatiale
    Inventors: Rene L. Mouille, Marc Declerco, Jean-Pierre Jalaguier, Bernard Jaugey
  • Variable-pitch multi-blade propeller incorporating individually dismountable blades made of composite materials, process for manufacturing such blades and blades thus produced
    Patent number: 4626173
    Abstract: Each blade is fixed to the hub by the root part of the spar, arranged in the form of a loop surrounding a connection element bolted on the hub, with the interposition of rigid rings by a pin simultaneously fixing the hub on a drive sleeve transmitting thereto the driving torque of the central shaft. The hub comprises two coaxial cylindrical walls in each of which is pierced, for each blade, a circular opening in which the member for controlling the angle of attach which is fast with the blade root is mounted to rotate via self-lubricating rings. The invention is particularly applicable to helicopters.
    Type: Grant
    Filed: March 8, 1984
    Date of Patent: December 2, 1986
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventors: Rene L. Mouille, Marc Declerco, Jean-Pierre Jalaguier, Bernard Jaugey
  • Variable-pitch multi-blade propeller incorporating individually dismountable blades made of composite materials, process for manufacturing such blades and blades thus produced
    Patent number: 4626172
    Abstract: Each blade is fixed to the hub by the root part of the spar, arranged in the form of a loop surrounding a connection element bolted on the hub, with the interposition of rigid rings by a pin simultaneously fixing the hub on a drive sleeve transmitting thereto the driving torque of the central shaft. The hub comprises two coaxial cylindrical walls in each of which is pierced, for each blade, a circular opening in which the member for controlling the angle of attack which is fast with the blade root is mounted to rotate via self-lubricating rings. The invention is particularly applicable to helicopters.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: December 2, 1986
    Assignee: Societe Nationale Industrielle Aerospatiale
    Inventors: Rene L. Mouille, Marc Declerco, Jean-Pierre Jalaguier, Bernard Jaugey