Patents by Inventor Dean Fedewa

Dean Fedewa 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).

  • NACELLE ANTI-ICING TROUBLESHOOTING FOR A TWO VALVE SYSTEM
    Publication number: 20180355797
    Abstract: A gas turbine engine anti-icing system troubleshooting method comprising providing an anti-icing system comprising a bleed air source coupled to a pressure regulating valve set having an upper valve coupled end-to-end in series with a lower valve; and an air pressure sensor coupled to the pressure regulating valve set downstream of the pressure regulating valve set; detecting at least one valve fault; checking the upper valve for the at least one valve fault; checking the lower valve for the at least one valve fault; deactivating at least one of the upper valve and the lower valve; and replacing at least one of the upper valve and lower valve.
    Type: Application
    Filed: June 12, 2017
    Publication date: December 13, 2018
    Applicant: United Technologies Corporation
    Inventors: Mainul M. Islam, Dean Fedewa, Zhijun (David) Zheng, Tommy B. Dixon