Patents by Inventor Petra Bracko

Petra Bracko 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).

  • Tool for repair of airfoil edges
    Patent number: 5281062
    Abstract: The present invention provides an apparatus to repair gouged out and damaged leading and trailing edges of gas turbine engine blades, particularly fan blades, by cutting away a curved section including the damaged area and forming a blend radius along the repaired edge. The apparatus includes a unique machine tool guide having an adjustable cutting depth guide and mountable to a hand held machine tool driver, such as a 90 degree angle head air motor, that drives a rotary cutter.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: January 25, 1994
    Assignee: General Electric Company
    Inventors: Dewey D. Dunkman, Warren D. Grossklaus, Jr., Petra Bracko
  • Repair of airfoil edges
    Patent number: 5197191
    Abstract: The present invention provides a method and apparatus to repair gouged out and damaged leading and trailing edges of gas turbine engine blades, particularly fan blades, by cutting away a curved section including the damaged area and forming a blend radius along the repaired edge. The apparatus includes a unique machine tool guide having an adjustable cutting depth guide and mountable to a hand held machine tool driver, such as 90 degree angle head air motor, that drives a rotary cutter.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: March 30, 1993
    Assignee: General Electric Company
    Inventors: Dewey D. Dunkman, Warren D. Grossklaus, Jr., Petra Bracko