Patents by Inventor Fred Callahan

Fred Callahan 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).

  • METHOD OF MAKING BRAKE DISCS AND ROTORS WITH OPEN SLOTS AND BRAKE DISCS AND ROTORS MADE THEREWITH
    Publication number: 20050252739
    Abstract: The present invention broadly comprises a brake disc having superior cooling characteristics and a method for manufacturing brake discs with superior cooling characteristics. The brake disc has at least one slot arranged at an angle greater than zero degrees and less than ninety degrees with respect to a radius of said disc passing through said slot. The angle can be selected to enhance cooling under specified conditions. Slots in the disc can open to an inner or outer perimeter of the disc or may be fully enclosed within the disc. The shape and width of the slots and the spacing between the slots can be selected to enhance cooling properties of the disc.
    Type: Application
    Filed: May 12, 2004
    Publication date: November 17, 2005
    Inventors: Fred Callahan, George Talia