Patents by Inventor David Patrick Stewart

David Patrick Stewart 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).

  • Publication number: 20240159665
    Abstract: A method for detecting a contaminant. A Fourier transform infrared scan for a section of the unconsolidated composite material is received in real time during manufacturing of the unconsolidated composite material by a composite material manufacturing system. A determination is made as to whether a contaminant is present in the section of the unconsolidated composite material in real time during manufacturing of the unconsolidated composite material by the composite material manufacturing system using the Fourier transform infrared scan and a machine learning model system trained to classify contaminants in unconsolidated composite materials using the Fourier transform infrared scan of the unconsolidated composite materials.
    Type: Application
    Filed: January 18, 2024
    Publication date: May 16, 2024
    Inventors: David Williamson Shahan, Ashley Marie Dustin, Tiffany Allison Stewart, Russell Patrick Mott, Yuksel Can Yabansu, Andrew L. Bauer, Gwen Marie Lanphere Gross
  • Publication number: 20240153063
    Abstract: A method, apparatus, system, and computer program product for detecting inconsistencies in an unconsolidated composite material. Fiber inconsistencies are detected in sections of the fibers input into a composite material manufacturing system in real time during operation of the composite material manufacturing system. Material inconsistencies are detected in the unconsolidated composite material in real time as the unconsolidated composite material is being manufactured by the composite material manufacturing system using the fibers. A determination is made as to whether the material inconsistencies are present in a number of the sections in which the fiber inconsistencies are detected in real time as the unconsolidated composite material is being manufactured by the composite material manufacturing system.
    Type: Application
    Filed: January 18, 2024
    Publication date: May 9, 2024
    Inventors: David Williamson Shahan, Rashmi Sundareswara, Tiffany Allison Stewart, Russell Patrick Mott, Andrew L. Bauer, Gwen Marie Lanphere Gross
  • Patent number: 7879391
    Abstract: An apparatus and process are used to make tape which can be used as cap plies, breakers and reinforcement in the carcass of tires. The tape is made by dipping a plurality of single end cords in a solvent-based cement. The cords are converged before entering the dip pan so that they are fixed in a single plane when they are dipped. The cement, which contains solvent and an elastomeric composition, is dried so that the majority of the solvent evaporates. The elastomeric composition remains, encapsulating the cords, thereby forming the tape.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: February 1, 2011
    Assignee: Kordsa USA, Inc.
    Inventors: Rodney Gene Stamper, David Patrick Stewart
  • Publication number: 20090317543
    Abstract: An apparatus and process are used to make tape which can be used as cap plies, breakers and reinforcement in the carcass of tires. The tape is made by dipping a plurality of single end cords in a solvent-based cement. The cords are converged before entering the dip pan so that they are fixed in a single plane when they are dipped. The cement, which contains solvent and an elastomeric composition, is dried so that the majority of the solvent evaporates. The elastomeric composition remains, encapsulating the cords, thereby forming the tape.
    Type: Application
    Filed: April 20, 2009
    Publication date: December 24, 2009
    Inventors: Rodney Gene Stamper, David Patrick Stewart