Patents by Inventor John J. Frantz

John J. Frantz 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).

  • Variable double lip quiet inlet
    Patent number: 4132240
    Abstract: An inlet for a gas turbine engine is provided with a fixed geometry upstream lip defining the primary inlet flow passage, and a variable position downstream lip partially defining an efficient auxiliary fluid flow passage through the inlet. The upstream lip is sized to pass all of the engine flow requirements at a near-sonic average Mach number during engine approach operating conditions. Apparatus is provided to position the variable lip for modulating flow through the auxiliary passage during higher engine power settings.
    Type: Grant
    Filed: March 28, 1977
    Date of Patent: January 2, 1979
    Assignee: General Electric Company
    Inventor: John J. Frantz