Patents by Inventor Dan Anastas, deceased

Dan Anastas, deceased 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 and method for folding and locking rotor blades
    Patent number: 5031858
    Abstract: Folding and folding locking apparatus for rotor blades that includes a power actuator for rotating the blades and locking means for securing the blade in the deployed position and securing the blades against rotation of the pitch angle during and when the blades are folded. The apparatus also provides for the complete fairing of the blades at their connections with the rotary drive hub and provides a powered door in the fairing that can be opened and closed to permit the quick and easy folding and redeployment of the blades.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: July 16, 1991
    Assignee: Bell Helicopter Textron, Inc.
    Inventors: Ernst C. Schellhase, Dan Anastas, deceased, by Peggy Anastas, executrix, Paul E. Keefer, Cecil E. Covington, Joseph J. Zierer, William D. Neathery