Patents by Inventor John E. Van Doren

John E. Van Doren 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: 12600487
    Abstract: An assembly for an aircraft propulsion system includes a nacelle inlet structure which extends axially along and circumferentially around a centerline. The nacelle inlet structure includes an inlet lip, an inner barrel, an outer barrel and a plurality of structure segments. The inlet lip forms a leading edge of the nacelle inlet structure. The inner barrel projects axially aft away from the inlet lip. The outer barrel projects axially aft away from the inlet lip. The outer barrel is radially outboard of and axially overlaps the inner barrel. Each of the structure segments includes an exterior skin, a mount and an electric heater configured to heat the exterior skin. The exterior skin forms a respective circumferential section of the inlet lip. The mount is connected to the exterior skin. A fastener extends radially through the mount and attaches a respective one of the structure segments to the inner barrel.
    Type: Grant
    Filed: August 8, 2023
    Date of Patent: April 14, 2026
    Assignee: Rohr, Inc.
    Inventors: Jeffrey W. Moe, John E. Van Doren, Aleksandar Ratajac
  • Patent number: 12326113
    Abstract: An assembly for an aircraft propulsion system includes a nacelle inlet structure. The nacelle inlet structure includes an inlet lip, an inner barrel, an outer barrel, a bulkhead and a plurality of structure segments. Each of the structure segments includes an exterior skin, an inner mount flange, an outer mount flange and an electric heater configured to heat the exterior skin. The exterior skin forms at least a respective circumferential section of the inlet lip. The inner mount flange is connected to and projects radially outward away from the exterior skin. An inner fastener extends axially through the inner mount flange and couples the inner mount flange to the inner barrel. The outer mount flange is connected to and projects radially inward away from the exterior skin. An outer fastener extends axially through the outer mount flange and couples the outer mount flange to the bulkhead.
    Type: Grant
    Filed: August 8, 2023
    Date of Patent: June 10, 2025
    Assignee: Rohr, Inc.
    Inventors: Jeffrey W. Moe, John E. Van Doren, Aleksandar Ratajac
  • Patent number: 12296971
    Abstract: An assembly is provided for an aircraft propulsion system. This assembly includes a nacelle inlet structure which extends axially along and circumferentially around a centerline. The nacelle inlet structure includes an inlet lip, an inner barrel, an outer barrel and a plurality of structure segments. The inlet lip forms a leading edge of the nacelle inlet structure. The inner barrel projects axially aft away from the inlet lip. The outer barrel projects axially aft away from the inlet lip. The outer barrel is radially outboard of and axially overlaps the inner barrel. Each of the structure segments includes an exterior skin, a mount and an electric heater configured to heat the exterior skin. The exterior skin forms a respective circumferential section of the inlet lip and a respective circumferential section of the outer barrel. The mount is bonded to the exterior skin and mechanically attached to the inner barrel.
    Type: Grant
    Filed: August 8, 2023
    Date of Patent: May 13, 2025
    Assignee: Rohr, Inc.
    Inventors: Jeffrey W. Moe, John E. Van Doren, Aleksandar Ratajac
  • Publication number: 20250051025
    Abstract: An assembly is provided for an aircraft propulsion system. This assembly includes a nacelle inlet structure which extends axially along and circumferentially around a centerline. The nacelle inlet structure includes an inlet lip, an inner barrel, an outer barrel and a plurality of structure segments. The inlet lip forms a leading edge of the nacelle inlet structure. The inner barrel projects axially aft away from the inlet lip. The outer barrel projects axially aft away from the inlet lip. The outer barrel is radially outboard of and axially overlaps the inner barrel. Each of the structure segments includes an exterior skin, a mount and an electric heater configured to heat the exterior skin. The exterior skin forms a respective circumferential section of the inlet lip and a respective circumferential section of the outer barrel. The mount is bonded to the exterior skin and mechanically attached to the inner barrel.
    Type: Application
    Filed: August 8, 2023
    Publication date: February 13, 2025
    Inventors: Jeffrey W. Moe, John E. Van Doren, Aleksandar Ratajac
  • Publication number: 20250052195
    Abstract: An assembly for an aircraft propulsion system includes a nacelle inlet structure. The nacelle inlet structure includes an inlet lip, an inner barrel, an outer barrel, a bulkhead and a plurality of structure segments. Each of the structure segments includes an exterior skin, an inner mount flange, an outer mount flange and an electric heater configured to heat the exterior skin. The exterior skin forms at least a respective circumferential section of the inlet lip. The inner mount flange is connected to and projects radially outward away from the exterior skin. An inner fastener extends axially through the inner mount flange and couples the inner mount flange to the inner barrel. The outer mount flange is connected to and projects radially inward away from the exterior skin. An outer fastener extends axially through the outer mount flange and couples the outer mount flange to the bulkhead.
    Type: Application
    Filed: August 8, 2023
    Publication date: February 13, 2025
    Inventors: Jeffrey W. Moe, John E. Van Doren, Aleksandar Ratajac
  • Publication number: 20250051026
    Abstract: An assembly for an aircraft propulsion system includes a nacelle inlet structure which extends axially along and circumferentially around a centerline. The nacelle inlet structure includes an inlet lip, an inner barrel, an outer barrel and a plurality of structure segments. The inlet lip forms a leading edge of the nacelle inlet structure. The inner barrel projects axially aft away from the inlet lip. The outer barrel projects axially aft away from the inlet lip. The outer barrel is radially outboard of and axially overlaps the inner barrel. Each of the structure segments includes an exterior skin, a mount and an electric heater configured to heat the exterior skin. The exterior skin forms a respective circumferential section of the inlet lip. The mount is connected to the exterior skin. A fastener extends radially through the mount and attaches a respective one of the structure segments to the inner barrel.
    Type: Application
    Filed: August 8, 2023
    Publication date: February 13, 2025
    Inventors: Jeffrey W. Moe, John E. Van Doren, Aleksandar Ratajac