Patents by Inventor Duncan B. Cox deceased

Duncan B. Cox 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).

  • Strain-resistant heated helicopter rotor blade
    Patent number: 4841124
    Abstract: Wire is flat braided into a straight component on a braiding machine, and carrier threads keep the component from deforming as it is drawn off the machine. The carrier threads are removed. The braid component is cut into straight strips with terminals connected to the ends of the strips. The braid component with leads extending therefrom is mounted to or in the surface of a high strain aerodynamic component. The axis of the heater is parallel to the direction of applied stress. The wires lie along directions of reduced strain.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: June 20, 1989
    Assignee: Cox & Company, Inc.
    Inventors: Duncan B. Cox deceased, Martin Schuyler