Patents by Inventor Stephen R. Dark

Stephen R. Dark 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).

  • Patent number: 11491686
    Abstract: Compression mold assembly for forming a preform of a cascade includes first and second die elements and an axis of alignment. Line of removal of a formed preform is positioned perpendicular to a plane perpendicular to the axis of alignment. First die portion includes first curved surface forming interior surface of first strong back and second die portion includes first curved surface forming interior surface of a second strong back of a cell of a formed preform. Second die portion includes second curved surface forming an interior surface of a first vane on forward side of the cell of the formed preform and first die portion further includes first wall member which extends along line of removal and a second wall member which extends angularly from first wall portion forming an interior surface of a second vane positioned on an aft side of the cell.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: November 8, 2022
    Assignee: THE BOEING COMPANY
    Inventors: Zachariah VanDeMark, David J. Barene, Everette D. Gray, Chen Chuck, Tunde A. Olaniyan, Garry A. Booker, Douglas G. Cogswell, Stephen R. Dark
  • Publication number: 20210023745
    Abstract: Compression mold assembly for forming a preform of a cascade includes first and second die elements and an axis of alignment. Line of removal of a formed preform is positioned perpendicular to a plane perpendicular to the axis of alignment. First die portion includes first curved surface forming interior surface of first strong back and second die portion includes first curved surface forming interior surface of a second strong back of a cell of a formed preform. Second die portion includes second curved surface forming an interior surface of a first vane on forward side of the cell of the formed preform and first die portion further includes first wall member which extends along line of removal and a second wall member which extends angularly from first wall portion forming an interior surface of a second vane positioned on an aft side of the cell.
    Type: Application
    Filed: July 22, 2019
    Publication date: January 28, 2021
    Inventors: Zachariah VanDeMark, David J. Barene, Everette D. Gray, Chen Chuck, Tunde A. Olaniyan, Garry A. Booker, Douglas G. Cogswell, Stephen R. Dark
  • Patent number: 10828804
    Abstract: A molding system for forming a composite structure having trapped volumes is presented. The molding system comprises a plurality of removeable inserts, a bottom tool member, and a plurality of restraints. Each removeable insert of the plurality of removeable inserts comprises a plurality of pieces configured to be disassembled for removal from the composite structure. Each removeable insert is configured to be placed in contact with the bottom tool member. The plurality of restraints is configured to restrain the plurality of removeable inserts in a vertical direction relative to the bottom tool member.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: November 10, 2020
    Assignee: The Boeing Company
    Inventor: Stephen R. Dark
  • Publication number: 20200108525
    Abstract: A molding system for forming a composite structure having trapped volumes is presented. The molding system comprises a plurality of removeable inserts, a bottom tool assembly, and a plurality of vents formed at a parting line of the molding system. Each removeable insert of the plurality of removeable inserts comprises a plurality of pieces configured to be disassembled for removal from the composite structure. Each removeable insert is configured to be placed in contact with the bottom tool assembly.
    Type: Application
    Filed: October 3, 2018
    Publication date: April 9, 2020
    Inventor: Stephen R. Dark
  • Publication number: 20200108526
    Abstract: A molding system for forming a composite structure having trapped volumes is presented. The molding system comprises a plurality of removeable inserts, a bottom tool member, and a plurality of restraints. Each removeable insert of the plurality of removeable inserts comprises a plurality of pieces configured to be disassembled for removal from the composite structure. Each removeable insert is configured to be placed in contact with the bottom tool member. The plurality of restraints is configured to restrain the plurality of removeable inserts in a vertical direction relative to the bottom tool member.
    Type: Application
    Filed: October 3, 2018
    Publication date: April 9, 2020
    Inventor: Stephen R. Dark
  • Patent number: 10406729
    Abstract: A compression molding assembly for molding a honeycomb core, including a plurality of cells defined by a plurality of walls, of a blocker door is provided. The compression molding assembly includes a ram plate comprising a plurality of openings defined therethrough and a plurality of core inserts coupled to the ram plate such that the plurality of core inserts are configured to form the honeycomb core of the blocker door. Each core insert is removably coupled with a respective opening of the plurality of openings such that each core insert is configured to form a respective cell of the plurality of cells.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: September 10, 2019
    Assignee: The Boeing Company
    Inventors: Kevin O'Brien Gaw, Michael A. Nill, Garry Anthony Booker, Stephen R. Dark, Laura Fournier, Randy J. Grove, David John Barene, Jeston Lingelbach, Kory Shaffer, David W. Foutch, Michael H. Larson
  • Patent number: 5199559
    Abstract: The present invention is directed to an intraocular lens (IOL) holder or case for holding, storing and transporting various types of intraocular lenses. The IOL holder or case is comprised of (a) a base having a recessed portion which contains a concave portion sized to hold and support an IOL of various sizes; (b) a cover for the base which has disposed therein a flexible insert; and (c) a system for locking the cover and the base in secure relationship to one another.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: April 6, 1993
    Assignee: Ioptex Research, Inc.
    Inventor: Stephen R. Dark