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▼
[I claim:] [1.]a side wall enclosure which defmes an interior volume, said enclosure having top and bottom portions, with an opening at said top portion,a bottom closure attached to said bottom portion,said side wall enclosure being formed from a sheet, said sheet having first and second sections wh
[I claim:] [1.]a side wall enclosure which defmes an interior volume, said enclosure having top and bottom portions, with an opening at said top portion,a bottom closure attached to said bottom portion,said side wall enclosure being formed from a sheet, said sheet having first and second sections which are folded to form a folded sheet having a fold edge,said first section providing an inner layer of said enclosure and said second section providing an outer layer of said enclosure, said first and second sections having an inner surface,said folded sheet having a predetermined thickness of material removed from an area adjacent said fold edge, andan insulating middle layer sandwiched between said inner and outer layers.
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이 특허에 인용된 특허 (29)
Owens Claudia R. (West Jordan UT) Thurman Dennis (Salt Lake City UT), Beverage cooling wrap method of manufacture.
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