Patents by Inventor Stanley A. Shemchek

Stanley A. Shemchek 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).

  • Foam coated carpet primary backing material
    Patent number: 4217383
    Abstract: A tufted carpet product including a woven or non-woven primary backing material, a layer of foam compound adhered to the undersurface of said primary backing, rows of yarn elements tufted through the primary backing and the layer of foam compound to form a face of yarn on the upper surface of the primary backing and loop backs on the undersurface of the backing and foam compound, and optionally a thin layer of adhesive compound applied to the loop backs of the yarn elements.
    Type: Grant
    Filed: January 9, 1979
    Date of Patent: August 12, 1980
    Assignees: Textile Rubber & Chemical Company, Inc., Exxon Research & Engineering Co.
    Inventors: Henry G. Patterson, Stanley A. Shemchek, Robert G. Doone, Henry B. Christopher