Patents by Inventor PHILIP D. BRADFORD

PHILIP D. BRADFORD 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).

  • CARBON NANOTUBE COMPOSITES AND METHODS AND APPARATUS FOR FABRICATING SAME
    Publication number: 20120282453
    Abstract: In a method for fabricating a carbon nanotube (CNT) composite, an array of CNTs is provided. A CNT ribbon is pulled from the array and wound on a rotating mandrel. A polymer solution is applied to the ribbon to form a CNT composite laminate. The CNTs in the ribbon may be substantially aligned in a single direction. The ribbon may be attached to the mandrel such that the ribbon may be wound on the mandrel as the mandrel rotates. A CNT composite is provided that may include a polymer integrated with long, substantially straight CNTs that are highly aligned in a single direction. An apparatus for fabricating a CNT composite is provided that may include a rotatable mandrel and a spray gun. The spray gun may be configured for spraying a polymer solution on the CNT ribbon as the CNT ribbon is taken up on the rotating mandrel.
    Type: Application
    Filed: May 4, 2012
    Publication date: November 8, 2012
    Applicant: NORTH CAROLINA STATE UNIVERSITY
    Inventors: XIN WANG, YUNTIAN T. ZHU, PHILIP D. BRADFORD, WEI LIU