An insulating cup or container (50) and a method of manufacturing it comprises (first embodiment) providing a sidewall blank (12B) having two sections separated by a fold score (15), and a separate insulating sheet (18)(corrugated, ribbed, embossed, foamed, perforated, etc.) which is adhesively fast
An insulating cup or container (50) and a method of manufacturing it comprises (first embodiment) providing a sidewall blank (12B) having two sections separated by a fold score (15), and a separate insulating sheet (18)(corrugated, ribbed, embossed, foamed, perforated, etc.) which is adhesively fastened to one of the sections. The blank is folded in half along the fold score, to form a three-layered assembly with the insulating sheet in the middle. To reduce the thickness of the seam, the blank is thinned in the area adjacent a fold score prior to folding. The assembly is wrapped around a mandrel to bring the outer edges together at a side seam (22S) to form a sidewall 12. The side seam is sealed, the bottom is added, and the rim is formed. In a second embodiment, the insulating layer can be a coating on one or both of the sections of the two-section starting blank. In a third embodiment, the insulating section (40) can be integral with, and extend from, one edge of the starting blank. It is folded over first to form the middle layer of the wrappable assembly.
대표청구항▼
1. A thermally insulated container, comprising:a sidewall enclosure, said sidewall enclosure having top and bottom portions, with an opening at said top portion, a bottom closure attached to said bottom portion, said sidewall enclosure being formed from a sheet, said sheet having first and second se
1. A thermally insulated container, comprising:a sidewall enclosure, said sidewall enclosure having top and bottom portions, with an opening at said top portion, a bottom closure attached to said bottom portion, said sidewall enclosure being formed from a sheet, said sheet having first and second sections, said sheet being folded at a junction of said first and second sections to form a folded sheet having a fold edge at said junction, said first section providing an inner layer of said sidewall enclosure and said second section providing an outer layer of said sidewall enclosure, said second section having a plurality of deformities formed therein to provide insulating air space adjacent said outer layer, said folded sheet having a predetermined thickness of material removed from an area adjacent said fold edge.
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이 특허에 인용된 특허 (31)
Owens Claudia R. (West Jordan UT) Thurman Dennis (Salt Lake City UT), Beverage cooling wrap method of manufacture.
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