Patents by Inventor Watson M. Dufour

Watson M. Dufour 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: 4263766
    Abstract: An improved machine for automatically applying transfers such as tax stamps to multiple packages contained in a carton is disclosed. The machine comprises a conveyor for advancing a carton through an opening station, where it is opened to expose the packages therein, through a stamping station, where tax stamps in the form of heat or water transfers or ink printing are applied to each of the packages by a movable platen, and through a closing station where the carton is closed and resealed. The machine is adjustable to accommodate a variety of carton and package sizes and to apply the transfers to a selected part of each package in the carton accurately, while using stock transfer sheets on which the transfers are mounted with a predetermined spacing that does not necessarily correspond to the spacing of packages within the carton.
    Type: Grant
    Filed: September 30, 1977
    Date of Patent: April 28, 1981
    Assignee: R. J. Reynolds Tobacco Co.
    Inventors: Max N. Baker, Watson M. Dufour, Julian R. Martin, John D. Welch, Donald R. Wilkinson, Marvin G. Woempner