Patents by Inventor William Paschal

William Paschal 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).

  • S-duct for a turbo-jet aircraft engine
    Patent number: 5299760
    Abstract: An improved S-duct for turbo-jet engined aircraft. The present invention allows a high volume of high energy air to traverse the S-duct at a high pressure recovery ratio.
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: April 5, 1994
    Assignee: The Dee Howard Company
    Inventors: Thomas E. Finch, Enrico Cavatorta, William Paschal