Patents by Inventor William DeGroff

William DeGroff 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).

  • Fan driven emergency generator
    Publication number: 20060137355
    Abstract: An emergency electrical power generating apparatus for use with a turbofan engine comprises an electrical generator and a clutch assembly. The clutch connects the generator with a fan assembly of the engine only during a windmill action of the fan assembly.
    Type: Application
    Filed: December 27, 2004
    Publication date: June 29, 2006
    Inventors: Richard Welch, Jose Albero, Gerard Bueche, William Degroff, Jerzy Makuszewski
  • Ram air turbine over-speed protection using redundant yoke plate linear bearings
    Publication number: 20060078430
    Abstract: An improved ram air turbine for generating emergency aeronautical supplemental power with a plurality of concentric or nested linear bearings for supporting a speed governor yoke plate on a speed governor shaft comprising a movable sleeve that supports the yoke plate and rides on the governor shaft.
    Type: Application
    Filed: October 12, 2004
    Publication date: April 13, 2006
    Inventors: William DeGroff, Harry Carter