Patents by Inventor Donald F. Dreher

Donald F. Dreher 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 and apparatus for flocking continuous webs
    Patent number: 3959059
    Abstract: This application discloses methods reflected in specialized apparatus for application of a flocked covering to the receptive surface of a formed base, such as that of a thermoplastic film concatenate with its extrusion, to produce a flocked composite web. A vacuous foraminous conveyance provides positive means for transferring flock to the base and influencing the depth of embedment.
    Type: Grant
    Filed: September 6, 1972
    Date of Patent: May 25, 1976
    Inventors: Leon Rollin Alexander, Donald F. Dreher