Patents by Inventor Alan H. Marsh

Alan H. Marsh 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).

  • Quiet nacelle system and hush kit
    Patent number: 4817756
    Abstract: A quiet nacelle system for jet aircraft engines includes a nose cowl and nose dome having a sound-attenuating liner, a concentric ring between the nose cowl and nose dome, and fan duct components having a sound-attenuating liner. The system is particularly suitable for JT3D-3B and JT3D-7 engines for use with DC-8 aircraft. The components may be combined as a hush kit for retrofit in existing nacelle systems.
    Type: Grant
    Filed: July 28, 1987
    Date of Patent: April 4, 1989
    Assignee: Aeronautic Development Corp. Ltd.
    Inventors: Thomas W. Carr, Philip M. Rose, Alan H. Marsh