Patents by Inventor Alexander C. Dublinski

Alexander C. Dublinski 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 of fabricating a structural member having a stiffener bead therein
    Patent number: 5356586
    Abstract: A method of fabricating a structural member having a stiffener bead therein. Prepreg plies or layers of high tensile strength fabric are laid up on a conformable caul plate. A rubber-like plug is prefabricated to the shape of the stiffener bead and is urged into a stiffener bead cavity of the caul plate by a metal tool to sandwich the prepreg plies between the caul and the plug. The caul and the plug cooperate to cause the prepreg plies to conform to the desired shape of the stiffener bead.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: October 18, 1994
    Assignee: United Technologies Corporation
    Inventors: Alexander C. Dublinski, Edward J. Fabian, Philip J. Ramey, Darryl M. Toni
  • Method of fabricating a complex part made of composite material
    Patent number: 5286438
    Abstract: The method of fabricating a complex part made of composite material and having a plurality of panels oriented in diverse angular relationship, and utilizing a plurality of conformable cauls upon which the composite material is individually laid up and which cauls cooperate to form one of the molds used in the co-curing of the individually laid-up composite materials.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: February 15, 1994
    Assignee: United Technologies Corporation
    Inventors: Alexander C. Dublinski, Ronald J. Cooper, Edward J. Fabian, Gary J. Jacaruso, Philip J. Ramey, Darryl M. Toni, Matthew T. Turner
  • Structural member having a stiffener bead therein and comprising plies of composite material extending for the full length and width of the structural member and continuously through the stiffener bead, and the article so made
    Patent number: 5271986
    Abstract: A structural member made up of a plurality of bonded plies of high tensile strength woven fabric and molded to include at least one stiffener bead having elliptically shaped ends, and a structural part so fabricated.
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: December 21, 1993
    Assignee: United Technologies Corporation
    Inventors: Alexander C. Dublinski, Edward J. Fabian, Philip J. Ramey, Darryl M. Toni
  • Tooling method for resin transfer molding
    Patent number: 5152949
    Abstract: A method for resin transfer molding composite articles of complex configuration that have high fiber-to-resin ratios. The molding apparatus includes a compliant mold subassembly having one or more conformable cauls and a complementary, non-permeable membrane that function, in combination, as a semi-rigid molding tool. The compliant mold subassembly is relatively insensitive to bulk variations of layed-up fiber reinforcement material, facilitating fiber reinforcement material lay up and closure of the molding apparatus. The compliant mold subassembly provides uniform pressures during various molding stages, i.e., resin injection, expulsion of excess resin, curing, to enhance the homogeneity and dimensional stability of the finished composite article. The semi-rigid aspect of the compliant mold subassembly facilitates demolding of the finished composite article.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: October 6, 1992
    Assignee: United Technologies Corporation
    Inventors: Peter B. Leoni, Philip Ramey, Alexander C. Dublinski
  • Molding apparatus for composite materials
    Patent number: 4836765
    Abstract: Permanent magnets embedded within the periphery of a vacuum bag seal the bag to rigid mold during the curing of composite laminate lay-ups.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: June 6, 1989
    Assignee: United Technologies Corporation
    Inventors: Michael A. Kornitzky, Alexander C. Dublinski