Patents by Inventor Stephen N. Johnson

Stephen N. Johnson 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 of sealing a shrink wrap package
    Patent number: 4956963
    Abstract: An article is wrapped in a shrink film having a longitudinal seal. The longitudinal seal is formed by swirling hot melt fibers onto a longitudinal edge of the film and bringing longitudinal edges together to form an initial pressure-sensitive seal. The shrink film and hot melt are then subjected to the elevated temperature of shrink oven to shrink the film and to form a more complete bond at the longitudinal seam.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: September 18, 1990
    Assignee: Nordson Corporation
    Inventor: Stephen N. Johnson