Patents by Inventor William DiMaggio

William DiMaggio 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: 12049830
    Abstract: A drain assembly includes a drain tube and a flapper assembly. The drain tube extends between a first tube end and a second tube end. The first tube end is configured to fluidly attach to an inlet plenum assembly of an engine system of a rotorcraft. The flapper assembly is positioned along the second tube end and comprises a flapper door that is configured to allow fluid to drain from the drain assembly to an engine compartment of the engine system of the rotorcraft. The flapper door is configured to prevent fluid, engine compartment gases, or flame from flowing into the drain assembly through the second tube end of the drain tube.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: July 30, 2024
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Robert J. Andrejczyk, William DiMaggio
  • Publication number: 20230340895
    Abstract: A drain assembly includes a drain tube and a flapper assembly. The drain tube extends between a first tube end and a second tube end. The first tube end is configured to fluidly attach to an inlet plenum assembly of an engine system of a rotorcraft. The flapper assembly is positioned along the second tube end and comprises a flapper door that is configured to allow fluid to drain from the drain assembly to an engine compartment of the engine system of the rotorcraft. The flapper door is configured to prevent fluid, engine compartment gases, or flame from flowing into the drain assembly through the second tube end of the drain tube.
    Type: Application
    Filed: April 22, 2022
    Publication date: October 26, 2023
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Robert J. Andrejczyk, William DiMaggio