Patents by Inventor Robert M. Thatcher

Robert M. Thatcher 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: 5775220
    Abstract: A method for screen printing is provided where multiple screen frames used to facilitate multiple images are carried in fixed registration for an entire screen printing process. The method includes positioning and registering at least two screen frames in fixed registration inside a master frame with the screen frames disposed adjacent to one another and lying in a common plane with the master frame. The steps of coating the screens with emulsion, drying the coated screens, and producing an image on the screens are provided. The master frame is loaded in a printing press and the screens are inked. Printing occurs by repeatably positioning an object in adjacency to each screen for transferring ink through each screen onto the object to produce multiple images on the object where the screens are maintained in fixed registration relative to one another.
    Type: Grant
    Filed: May 22, 1996
    Date of Patent: July 7, 1998
    Inventor: Robert M. Thatcher