Patents by Inventor George R. Hartranft

George R. Hartranft 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).

  • Product and method of printing carpet with a transfer paper- II
    Patent number: 4007003
    Abstract: A pattern is placed on a porous transfer sheet by the use of sublimable dyes. Carpet face yarns are tufted into a backing material. The transfer sheet is placed adjacent the back of the carpet on the side of the carpet opposite from the carpet face yarns. Heated air causes the sublimable dye to move from the transfer sheet, through the carpet backing to the face yarns of the carpet to provide the dye pattern on the face yarns.
    Type: Grant
    Filed: September 12, 1975
    Date of Patent: February 8, 1977
    Assignee: Armstrong Cork Company
    Inventors: Walter T. Bulson, George R. Hartranft, Leonard N. Ray, Jr.