Patents by Inventor Stephen M. Callahan

Stephen M. Callahan 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 applying article to inside of bag
    Patent number: 4726171
    Abstract: A bag having an article applied to an inside surface thereof is formed in a continuous bag-making operation by conveying a bag-making film web and a continuous strip of material in joinable proximity with each other. The article is formed by severing the strip of material and at least one edge portion of the severed article is bonded to the continuous web of bag film. The longitudinal margins of the web are then brought together and bonded to form a tube with the article bonded to the inner surface of the tube, and bags are formed and severed from the tube with the article bonded to one inner surface of the bag.
    Type: Grant
    Filed: September 12, 1986
    Date of Patent: February 23, 1988
    Assignee: Frito-Lay, Inc.
    Inventors: William D. Kreager, Stephen R. Holten, Stephen M. Callahan, Kenneth R. Berger