Paperboard bottle
AssigneeWestvaco Corporation
InventorsRobert A. Farrell, Hampton E. Forbes, Todd H. Huffman, William R. Rigby
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Abstract
A bottle type container is fabricated by blow molding a continuous wall liner of thermoplastic polymer integrally to the interior wall surface of an oppositely matched pair of paperboard cladding jackets. Paperboard cladding jackets respective to each pair are joined substantially edge-to-edge along the meeting seam exclusively by the continuous liner wall lap. For container stability when resting on a flat surface, at least one folded ridge is formed in the bottom edge panel of both jackets.
Claims12
A composite fluid container having a paperboard exterior surface and a blow molded polymer interior lining comprising:
- a structural paperboard jacket having a plurality of fold-formed planar facets to substantially envelope an interior volume of said container and having substantially edge-to-edge joint seams between meeting perimeter edges of said jacket;
- a blow molded polymer lining bonded intimately and continuously to substantially all interior surface area of said jacket and continuously bridging said edge-to-edge joint seams;
- and
- a container aperture means formed as a continuously extended portion of said blow molded lining.
A substantially fluid impermeable container of the bottle type comprising:
- a pair of cut and break folded paperboard blanks aligned along substantially edge-to-edge joints to substantially enclose a container volume within side, end, top and bottom portions, said bottom portion having at least two break folded ridges in a common plane for stable support of said container on a flat surface;
- and,
- a thermoplastic polymer lining blow molded into intimate bonded contact with substantially all interior surface area of said blanks, said lining bridging said end-to-end joints to unitize said blanks and said lining as a single, integral article.
Dependencies are inferred from the claim text.