Patents by Inventor John Pelszynski

John Pelszynski 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).

  • Casing for binders and books
    Patent number: 5931505
    Abstract: A casing for a binder or book is disclosed in which there is at least one stiff panel portion and a thermoplastic sheet for covering the panel portion with the end and/or edge portions of the sheet being folded under and secured to the underside of the panel portions. The sheet comprises between about 30% and about 55% copolymer of propylene and ethylene; from 0% to about 12% propylene homopolymer; between 0% to about 20% high density polyethylene; between about 23% and about 35% calcium carbonate or talc filler. The product is especially adapted for high speed machines for making binder casings.
    Type: Grant
    Filed: February 11, 1997
    Date of Patent: August 3, 1999
    Assignee: Industrial Coatings Group, Inc.
    Inventors: Thomas H. Malpass, John Pelszynski, Ronald V. Mounts