Insulated container, method of fabricating same and apparatus for fabricating
First Claim
Patent Images
1. An insulated container comprising:
- an inner cup having a generally frusto-conical cup body, the cup body including an annular upper shoulder;
a generally frusto-conical outer shell having an inward curl at a lower edge thereof;
a substantially uniform annular air gap disposed between the cup body and the outer shell having a predetermined spacing provided by the inward curl and the annular upper shoulder; and
a bonding material disposed on at least one of an inner surface of the outer shell and an outer surface of the cup body;
wherein the cup body is seated within the outer shell so that the bonding material is disposed in a contact path at the annular upper shoulder and near an upper edge of the outer shell in which the outer surface of the cup body and the inner surface of the shell are in contact;
wherein at least a first bond and a second bond fastening the outer shell to the cup body is formed in less than the entire contact path and by applying pressure and heat, such that the first and second bonds are separated by an unbonded portion of the contact path, andwherein the bonding material comprises at least one of a thermo sealable plastic coating or a thermo sealable varnish.
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Abstract
The invention relates to an insulated container for hot drinks or the like comprising an inner cup having a generally frusto-conical cup body and a generally frusto-conical outer shell. The cup is seated within the shell so that a contact path is disposed near the upper edge of the shell, along which contact path the outer surface of the cup body and inner surface of the shell are in contact. At least one bonding spot and/or bonding area for bonding said shell to said cup body is locally formed within said contact path.
384 Citations
20 Claims
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1. An insulated container comprising:
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an inner cup having a generally frusto-conical cup body, the cup body including an annular upper shoulder; a generally frusto-conical outer shell having an inward curl at a lower edge thereof; a substantially uniform annular air gap disposed between the cup body and the outer shell having a predetermined spacing provided by the inward curl and the annular upper shoulder; and a bonding material disposed on at least one of an inner surface of the outer shell and an outer surface of the cup body; wherein the cup body is seated within the outer shell so that the bonding material is disposed in a contact path at the annular upper shoulder and near an upper edge of the outer shell in which the outer surface of the cup body and the inner surface of the shell are in contact; wherein at least a first bond and a second bond fastening the outer shell to the cup body is formed in less than the entire contact path and by applying pressure and heat, such that the first and second bonds are separated by an unbonded portion of the contact path, and wherein the bonding material comprises at least one of a thermo sealable plastic coating or a thermo sealable varnish. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14)
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13. An insulated container comprising:
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an inner cup having a generally frusto-conical cup body, the cup body including an annular upper shoulder; a generally frusto-conical outer shell having an inward curl at a lower edge thereof; a substantially uniform annular air gap disposed between the cup body and the outer shell having a predetermined spacing provided by the inward curl and the annular upper shoulder; and a bonding material disposed on at least a first and second bond point of an inner surface of the outer shell and an outer surface of the cup body; wherein the cup body is seated within the outer shell so that the bonding material is disposed in a contact path at the annular upper shoulder and near an upper edge of the outer shell in which the outer surface of the cup body and the inner surface of the shell are in contact; wherein the first and second bonding points bonding the outer shell to the cup body are formed by locally applying heat and pressure to the bonding material at the contact path, so that the at least first and second bond points are formed in less than the entire contact path and are separated by an unbonded portion of the contact path and by applying pressure and heat, and wherein the bonding material comprises at least one of a thermo sealable plastic coating or a thermo sealable varnish. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification