Patents by Inventor Felix BEDNAR

Felix BEDNAR 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).

  • Modular mandrel for monolithic composite fuselage
    Patent number: 10173348
    Abstract: A method of manufacturing a self-supporting, monolithic fuselage body, including engaging peripheral mandrel sections around at least one central mandrel section, placing uncured composite material on the mold surface, curing the composite material on the mold surface, and sliding the central mandrel section(s) out of engagement with the peripheral mandrel sections and disengaging the peripheral mandrel sections from the cured composite material without collapsing the mandrel sections. The peripheral mandrel sections each include a shape-retaining core of a thermally insulating material and an outer layer on an outer surface of the shape-retaining core. The outer layer has a coefficient of thermal expansion within the range of variation of that of the coefficient of thermal expansion of the composite material. A mandrel for layup and cure of a predetermined composite material in the manufacture of a monolithic fuselage is also discussed.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: January 8, 2019
    Assignee: Bell Helicopter Textron Inc.
    Inventors: Sylvain Tessier, Richard Gingras, Jacques Dionne, Felix Bednar
  • MODULAR MANDREL FOR MONOLITHIC COMPOSITE FUSELAGE
    Publication number: 20170072598
    Abstract: A method of manufacturing a self-supporting, monolithic fuselage body, including engaging peripheral mandrel sections around at least one central mandrel section, placing uncured composite material on the mold surface, curing the composite material on the mold surface, and sliding the central mandrel section(s) out of engagement with the peripheral mandrel sections and disengaging the peripheral mandrel sections from the cured composite material without collapsing the mandrel sections. The peripheral mandrel sections each include a shape-retaining core of a thermally insulating material and an outer layer on an outer surface of the shape-retaining core. The outer layer has a coefficient of thermal expansion within the range of variation of that of the coefficient of thermal expansion of the composite material. A mandrel for layup and cure of a predetermined composite material in the manufacture of a monolithic fuselage is also discussed.
    Type: Application
    Filed: September 13, 2016
    Publication date: March 16, 2017
    Applicant: Bell Helicopter Textron Inc.
    Inventors: Sylvain TESSIER, Richard GINGRAS, Jacques DIONNE, Felix BEDNAR