Patents by Inventor James B. Knizely

James B. Knizely 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).

  • Patent number: 4272309
    Abstract: A reinforcing cord is positioned in a mold cavity for reinforcing an annular article such as a tire by wrapping the cord on an annular spacer band which is supported on a mold core and then placed in the mold. The mold is charged with a liquid polyurethane reaction mixture to form an outer polymeric ring of the annular article which is adhered to the cord and partially cured. The spacer band is removed, the mold closed and charged with additional liquid polyurethane reaction mixture to form an inner polymeric ring of the annular article adjacent the reinforcing cord carried by the outer ring. The partially cured outer ring and the inner ring are then cured to adhere the inner ring to the outer ring with the layer of reinforcing cord encapsulated between the rings. An additional layer of reinforcing cord may be positioned in the article by wrapping another cord around a second spacer band having a smaller diameter than the first spacer band.
    Type: Grant
    Filed: May 1, 1980
    Date of Patent: June 9, 1981
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Roger E. Payne, Robert K. Rossi, James B. Knizely