Patents by Inventor Edward Stiftar

Edward Stiftar 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).

  • Rotor thrust balancing apparatus and method
    Publication number: 20070122265
    Abstract: Apparatus and method of balancing thrust bearing load on a rotor thrust bearing employ a first thrust balance piston cavity for exerting an aft directed thrust balancing force and a second balance piston cavity for exerting an independently controlled forward directed thrust balancing force to allow flexible and wide range balancing of thrust load on the rotor thrust bearing.
    Type: Application
    Filed: November 30, 2005
    Publication date: May 31, 2007
    Inventors: Amid Ansari, Emil Chouinard, Edward Stiftar