Patents by Inventor Roy D. Franceschet

Roy D. Franceschet 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).

  • Apparatus for supporting a rotating shaft in a rotary machine
    Patent number: 5110257
    Abstract: A rotary machine 10 includes a rotor shaft 40 and a support system 63 for the shaft. The support system includes a spring 68 and viscous damper 70. Apparatus for removing oil from the damper at preselected rotor speeds is provided and in one embodiment permits operating the engine over a rotor speed range which avoids critical speeds.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: May 5, 1992
    Assignee: United Technologies Corporation
    Inventors: David H. Hibner, Dennis F. Buono, Kurt M. Dembeck, Roy D. Franceschet
  • Apparatus for supporting a rotating shaft in a rotary machine
    Patent number: 4983051
    Abstract: A rotary machine 10 includes a rotor shaft 40 and a support system 63 for the shaft. The support system includes a spring 68 and viscous damper 70.Means for removing oil from the damper at preselected rotor speeds is provided and in one embodiment permits operating the engine over a rotor speed range which avoids critical speeds.
    Type: Grant
    Filed: April 11, 1990
    Date of Patent: January 8, 1991
    Assignee: United Technologies Corporation
    Inventors: David H. Hibner, Dennis F. Buono, Kurt M. Dembeck, Roy D. Franceschet
  • Apparatus and method for supporting a rotating shaft in a rotary machine
    Patent number: 4947639
    Abstract: A rotary machine 10 includes a rotor shaft 40 and a support system 63 for the shaft. The support system includes a spring 68 and viscous damper 70.Means for removing oil from the damper at preselected rotor speeds is provided and in one embodiment permits operating the engine over a rotor speed range which avoids critical speeds.
    Type: Grant
    Filed: May 12, 1988
    Date of Patent: August 14, 1990
    Assignee: United Technologies Corporation
    Inventors: David H. Hibner, Dennis F. Buono, Kurt M. Dembeck, Roy D. Franceschet