Patents by Inventor Daniel L. Lichtenstein

Daniel L. Lichtenstein 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: 20250162269
    Abstract: Disclosed herein is a method of repairing a contoured composite structure. The method includes applying a first facesheet, a core layer, and a second facesheet onto a contoured composite structure to form a repair tool. The method further includes removing the repair tool from the contoured surface of the contoured composite structure. After removing the repair tool from the contoured surface of the contoured composite structure, the method includes replacing a structural abnormality of a contoured composite structure with an uncured repair structure. The method also includes applying the repair tool onto the contoured composite structure such that the repair tool overlays the uncured repair structure. The method additionally includes curing the uncured repair structure when the repair tool is applied onto the contoured composite structure over the uncured repair structure.
    Type: Application
    Filed: November 16, 2023
    Publication date: May 22, 2025
    Inventors: Kyle A. Witzel, Daniel L. Lichtenstein, Larry D. Ridgeway, Pradeep Krishnaswamy
  • Patent number: 12097672
    Abstract: Systems and methods for actualizing simulated scarfing and patching for repair of composite laminates. A virtual environment is provided that enables engineers to optimize a repair design and provide the most robust repair solution that meets structural requirements, while minimizing the material removal and the impact to the composite structure. An optimization algorithm is configured to adjust contour offsets for pad-up plies and adjust scarf taper ratios in any direction to reduce the amount of material removed or avoid underlying structures. Scarf repair designs are subsequently transmitted to repair technicians for manual scarfing via printed templates or automated/robotic scarfing using converted computer-readable code. The technology also provides digital data for automated repair ply cutting.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: September 24, 2024
    Assignee: The Boeing Company
    Inventors: Larry D. Ridgeway, Pradeep Krishnaswamy, Daniel L. Lichtenstein, John V. Van Horn, Paul J. Shirron
  • Publication number: 20220134691
    Abstract: Systems and methods for actualizing simulated scarfing and patching for repair of composite laminates. A virtual environment is provided that enables engineers to optimize a repair design and provide the most robust repair solution that meets structural requirements, while minimizing the material removal and the impact to the composite structure. An optimization algorithm is configured to adjust contour offsets for pad-up plies and adjust scarf taper ratios in any direction to reduce the amount of material removed or avoid underlying structures. Scarf repair designs are subsequently transmitted to repair technicians for manual scarfing via printed templates or automated/robotic scarfing using converted computer-readable code. The technology also provides digital data for automated repair ply cutting.
    Type: Application
    Filed: May 11, 2021
    Publication date: May 5, 2022
    Applicant: The Boeing Company
    Inventors: Larry D. Ridgeway, Pradeep Krishnaswamy, Daniel L. Lichtenstein, John V. Van Horn, Paul J. Shirron