Patents by Inventor George Zipfel

George Zipfel 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).

  • Blade vibration control in turbo-machinery
    Patent number: 6409465
    Abstract: A method for reducing blade vibration in turbo-machinery is described. The method involves inserting flow obstructions and/or gas injections upstream of vibrating blades in such a manner that power flow into the blades is reduced by means of cancellation within a modal power integral.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: June 25, 2002
    Assignee: Hood Technology Corporation
    Inventors: Andreas von Flotow, George Zipfel