Patents by Inventor Paul D. Yakuboff

Paul D. Yakuboff 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).

  • Impregnating die
    Patent number: 4046103
    Abstract: A die for impregnating yarn is provided with a die insert having a minimum inside diameter. An inlet duct opening into the die has walls with length L, the walls sloping at an angle within the range of from about 5 degrees to about 25 degrees. The length of the inlet duct is within the range of from about 10 to about 25 times the minimum inside diameter of the die insert. The maximum diameter of the inlet duct is within the range of from about 15 to about 35 times the minimum inside diameter of the die insert.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: September 6, 1977
    Assignee: Owens-Corning Fiberglas Corporation
    Inventor: Paul D. Yakuboff