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US 7,938,313 B1Granted
Disposable thermally insulated cup and blank therefor
AssigneeDixie Consumer Products LLC
InventorGerald J. Van Handel
Life of this patent
Estimating the term…
Abstract
A container blank comprises at least one substrate layer made of disposable material and at least one film layer disposed substantially over the substrate layer and having at least one portion adapted to shrink away from the substrate layer upon application of heat. The shrunk film layer portion is adapted to thermally insulate the substrate layer located substantially behind the shrunk film layer portion.
Claims19
A beverage container, comprising:
- (a) a sidewall having an outer surface and an inner surface as well as one or more perforations to allow air intrusion;
- and
- (b) at least one air pocket formed on said inner surface by at least one strip of shrink film being coupled to said inner surface in at least one pattern and adapted to pull away from said inner surface of said sidewall according to said at least one pattern upon application of heat sufficient to form said at least one air pocket, said at least one air pocket thermally insulating a portion of said outer surface located directly behind said at least one air pocket.
A beverage container, comprising:
- (a) a sidewall extending between a closed bottom and an open top, said sidewall having an outer surface, an inner surface, and a substantially elongated seam area defined between said closed bottom and said open top as well as one or more perforations to allow air intrusion;
- and
- (b) at least one substantially horizontal air pocket formed on said inner surface by at least one strip of shrink film being coupled to said inner surface in at least one pattern and adapted to pull away from said inner surface of said sidewall according to said at least one pattern upon application of heat at a temperature range sufficient to form said at least one substantially horizontal air pocket, said at least one substantially horizontal air pocket adapted to cover said substantially elongated seam area and to thermally insulate a portion of said outer surface located directly behind said at least one substantially horizontal air pocket.
A beverage container, comprising:
- (a) a sidewall extending between a closed bottom and an open top, said sidewall having an outer surface, an inner surface, and a substantially elongated seam area defined between said closed bottom and said open top as well as one or more perforations to allow air intrusion;
- and
- (b) at least one substantially horizontal air pocket formed on said inner surface by at least one strip of shrink film being coupled to said inner surface in at least one pattern and adapted to pull away from said inner surface of said sidewall according to said at least one pattern upon application of heat sufficient to form said at least one substantially horizontal air pocket, said at least one substantially horizontal air pocket adapted to thermally insulate a portion of said outer surface located directly behind said at least one substantially horizontal air pocket except for said substantially elongated seam area.
A container blank, comprising:
- (a) a substrate layer made of a disposable material suitable for forming a sidewall of a container, wherein the substrate layer has an interior and an exterior as well as one or more perforations to allow air intrusion;
- (b) a shrink film layer having upper and lower portions corresponding to their relative positions on the sidewall of the container, secured to the interior of the substrate layer on both the upper and lower portions of the shrink film layer, wherein the shrink film layer is adapted to shrink away from the substrate layer upon application of heat thereto, thereby providing a shrunk film layer secured to the interior of the substrate layer on both the upper and lower portions of the shrink film layer after heat is applied to the shrink film layer;
- and
- whereby the shrunk film layer provides at least one thermal insulating pocket between the substrate layer and the shrunk film layer and wherein the shrunk film layer is secured at both its upper and lower portions to the container sidewall.
1 more element
Dependencies are inferred from the claim text.