Metal cans with peelable lids
AssigneeCrown Packaging Technology, Inc.
InventorFlorian Christian Gregory Combe
Life of this patent
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Abstract
A tubular metal can body having one end for attachment of a removable overcap, the can body having an inwardly projecting flange (1) formed therein by folding the can wall (2) circumferentially, part-way along its length, the flange providing a convex upper surface (8) to which a peelable lid (12) can be sealed.
Claims22
A tubular metal can body comprising a seamless can wall that defines a can wall length, the seamless can wall including a circumferential fold part-way along the can wall length that forms an inwardly projecting flange, the fold defining a radial distance with a peak at a midpoint of the radial distance of the fold, the can body configured such that a peelable lid can be directly adhered to substantially an entire length of an upper portion of the fold, such that a portion of the peelable lid that is adhered to substantially the entire length of the upper portion of the fold has a radial distance and a peak at a midpoint of the radial distance of the portion of the peelable lid, wherein the upper portion of the fold is continuously convex across its radial extent, and wherein a maximum height of the upper portion of the fold from the peak to its bottommost point is up to half of a radial extent defined by the convex upper surface.
A food storage container comprising:
- a tubular metal can body comprising a seamless can wall that defines a can wall length, the seamless can wall including a circumferential fold part-way along the can wall length that forms an inwardly projecting flange, the fold defining a radial distance with a peak at a midpoint of the radial distance of the fold, wherein the upper surface of the flange is continuously convex across its radial extent;
- and
- a peelable lid, the peelable lid being directly adhered to substantially an entire length of an upper portion of the fold, such that a portion of the peelable lid that is adhered to substantially the entire length of the upper portion of the fold has a radial distance and a peak at a midpoint of the radial distance of the portion of the peelable lid, wherein a maximum height of the upper portion of the fold from the peak to its bottommost point is up to half of a radial extent defined by the convex upper surface.
A food storage container consisting essentially of:
- a tubular metal can body comprising a seamless can wall that defines a can wall length, the seamless can wall including a circumferential fold part-way along the can wall length that forms an inwardly projecting flange, the flange having a convex upper surface that defines an upwardly extending peak, the peak defining an upper-most point of the convex upper surface, wherein the upper surface of the flange is continuously convex across its radial extent, and wherein a maximum height of the upper portion of the fold from the peak to its bottommost point is up to half of a radial extent defined by the convex upper surface;
- and
- a peelable lid, the peelable lid being directly adhered to the upper-most point of the convex upper surface of the flange.
Dependencies are inferred from the claim text.