Heat-sealed die cut binder
AssigneeThe Mead Corporation
InventorMarc L. Moor
Life of this patent
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Abstract
A binder is provided having a cover featuring a three-dimensional design produced by depressing plastic cover sheets into an opening in an underlying cover panel. The cover sheets are heat sealed together around the perimeter of the cover panel and in the regional of the depression. A plurality of such openings may be provided, all so shaped and positioned as to avoid substantially impairing the structural integrity of the cover.
Claims7
A binder comprising relatively stiff front and rear hingedly connected covers, each of said covers comprising a cover panel, an inner cover sheet coextensive with and covering the inner surface of said cover panel, and an outer cover sheet coextensive with and covering the outer surface of said cover panel;
- said cover sheets joined about the periphery of the cover panel associated therewith, characterized in that:
- at least one cover panel is provided with an interior opening positioned and sized so as not to impair substantially the structural integrity of said cover and into which opposing surfaces of said cover sheets are depressed together and joined so as to create a three-dimensional geometric cover design.
Dependencies are inferred from the claim text.