Patents by Inventor Stephen P. Schaller

Stephen P. Schaller 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: 7351188
    Abstract: A reclosable package comprising a hooded zipper with a pair of off-center lines of perforations that are hermetically sealed by a layer of material. The lines of perforations facilitate tearing off the hood to gain access to the zipper. One method of manufacture involves joining the hooded zipper to respective web portions formed by folding a web and then slitting the folded web in two. Another method of manufacture involves joining the hooded zipper to respective web portions formed by slitting a web in two and then orienting the two web portions into mutually confronting positions. The package may be constructed to have a wicket flap.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: April 1, 2008
    Assignee: Illinois Tool Works Inc.
    Inventors: Stephen P. Schaller, Eric Paul Plourde
  • Publication number: 20030235352
    Abstract: The reclosable container or bag (100) includes a zipper tape (18) with interlocking profiles (14, 16) of a zipper (12). First and second lines of perforation (28, 30) are formed parallel to and between the interlocking profiles (14, 16). Furthermore, the zipper tape (18) is looped so as to align the first and second lines of perforation (28, 30) with each other thereby forming a perforated cap structure (10). An additional layer of material (24) is formed to cover the first and second lines of perforation (28, 30) to maintain a hermetic seal prior to tearing of the first and second lines of perforation (28, 30). Typically, a notch (120, 122) is formed in at least one of the crush areas (116, 118) on the end of the zipper tape (18) to direct the user's tearing force to the lines of perforation (28, 30) thereby providing access to the zipper (12) and providing subsequent evidence of prior opening of reclosable container or bag (100).
    Type: Application
    Filed: June 24, 2002
    Publication date: December 25, 2003
    Inventors: Eric P. Plourde, Stephen P. Schaller