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Teaching and demonstration system

  • US 4,832,605 A
  • Filed: 01/21/1988
  • Issued: 05/23/1989
  • Est. Priority Date: 01/21/1988
  • Status: Expired due to Term
First Claim
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1. A teaching or demonstration system comprising:

  • A. a looseleaf notebook consisting of front and back covers connected together by a hinged back having openable rings for retaining matching hole-punched paper between said covers;

    B. said front cover having an overlayed clear plastic sheet substantially coextensive in area with said front cover and connected to the outer edges of said front cover on three sides to form a clear plastic pocket on the outside of said front cover;

    C. a metallic sheet substantially coextensive with but slightly smaller in area than said clear plastic pocket positioned in said clear plastic pocket;

    D. a nonmetallic sheet substantially coextensive with but slightly smaller in area than said clear plastic pocket positioned in said clear plastic pocket between said metallic sheet and said overlayed plastic sheet, said nonmetallic sheet having printed subject matter on the side adjacent said overlayed clear plastic sheet; and

    E. a plurality of magnetic elements adapted to be magnetically positioned on the outside of said overlayed clear plastic sheet in association with said printed subject matter on said nonmetallic sheet;

    F. whereby the magnetic attraction between each of said plurality of magnetic elements and said metallic sheet is sufficient to maintain each of said magnetic elements in a fixed position with respect to said printed subject matter on said nonmetallic sheet until moved to another position on said overlayed clear plastic sheet.

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