Microwave heating container
AssigneeGraphic Packaging International, Inc.
InventorsLaurence M. C. Lai, Sandra M. Tsontzidis, Bing Liu, Angela Chen Li, Neilson Zeng
Life of this patent
Estimating the term…
Abstract
A microwave heating construct comprises a base, a wall extending upwardly around the base for defining a cavity for receiving a food item, and a microwave energy shielding element overlying a lower margin of the wall, the microwave energy shielding element having an upper edge including a substantially incurved portion.
Claims46
A microwave heating construct comprising:
- a base;
- a wall extending upwardly around the base, wherein
- the wall and the base define a cavity for receiving a food item, and
- a lower margin of the wall is adjacent to the base;
- and
- a microwave energy shielding element overlying the lower margin of the wall, wherein
- the microwave energy shielding element has an upper edge,
- the upper edge of the microwave energy shielding element includes a substantially downwardly curved portion positioned in a corner of the construct,
- the downwardly curved portion of the upper edge of the microwave energy shielding element curves downwardly toward the base, and
- the downwardly curved portion of the upper edge of the microwave energy shielding element is positioned both
- along the lower margin of the wall, and
- proximate to the base.
A construct for heating a food item in a microwave oven, the construct including a pair of ends opposite one another, the construct comprising:
- a base;
- a wall extending upwardly from the base, wherein
- an uppermost portion of the wall comprises an outwardly protruding rim that is spaced apart from the base and extends around an opening to a cavity of the construct, and
- a lower margin of the wall is adjacent to the base;
- and
- a microwave energy shielding element including
- a lower edge extending along a peripheral margin of the base, and
- an upper edge extending along the lower margin of the wall, wherein
- the upper edge of the microwave energy shielding element includes a first downwardly curved portion positioned at a first end of the construct,
- the first downwardly curved portion of the upper edge of the microwave energy shielding element curves downwardly toward the base,
- the first downwardly curved portion of the upper edge of the microwave energy shielding element is spaced apart from the rim,
- the upper edge of the microwave energy shielding element includes a second downwardly curved portion positioned at a second end of the construct,
- the second downwardly curved portion of the upper edge of the microwave energy shielding element curves downwardly toward the base, and
- the second downwardly curved portion of the upper edge of the microwave energy shielding element is spaced apart from the rim.
A microwave heating construct, comprising:
- a base;
- a wall extending upwardly around the base, wherein the wall and base define a cavity for receiving a food item;
- a rim extending along an uppermost portion of the wall;
- and
- a microwave energy shielding element overlying a lower margin of the wall, the lower margin of the wall being adjacent to the base, wherein
- the microwave energy shielding element has an upper edge including a downwardly curved portion,
- the downwardly curved portion of the microwave energy shielding element is positioned in a corner of the construct, and
- the downwardly curved portion of the upper edge of the microwave energy shielding element is spaced apart from both the base and the rim.
A construct for heating a food item in a microwave oven, the construct including a pair of ends opposite one another, the construct comprising:
- a base;
- a wall extending upwardly from the base, the uppermost portion of the wall defining a rim of the construct;
- and
- a microwave energy shielding element including
- a lower edge extending along a peripheral margin of the base, and
- an upper edge extending along a lower margin of the wall, wherein
- the upper edge of the microwave energy shielding element includes a first downwardly curved portion,
- the first downwardly curved portion of the upper edge of the microwave energy shielding element curves downwardly toward the base,
- the first downwardly curved portion of the upper edge of the microwave energy shielding element is positioned at a first end of the pair of opposite ends of the construct,
- the first downwardly curved portion of the upper edge of the microwave energy shielding element is spaced apart from both the base and the rim of the construct,
- the upper edge of the microwave energy shielding element includes a second downwardly curved portion,
- the second downwardly curved portion of the upper edge of the microwave energy shielding element curves downwardly toward the base,
- the second downwardly curved portion of the upper edge of the microwave energy shielding element is positioned at a second end of the pair of opposite ends of the construct, and
- the second downwardly curved portion of the upper edge of the microwave energy shielding element is spaced apart from both the base and the rim of the construct.
A microwave heating construct, comprising:
- a base including a curvilinear peripheral edge, and the base having an elongate shape bounded by the curvilinear peripheral edge of the base, wherein elongate shape of the base defines opposite lengthwise ends of the construct;
- a wall extending along the curvilinear peripheral edge of the base, such that the wall extends around and defines an interior space of the construct, wherein the wall includes
- an upper margin distal from the base, and
- a lower margin, wherein the lower margin of the wall is adjacent the base, so that the lower margin of the wall is positioned between the based and the upper margin of the wall;
- and
- a metallic patch extending around the interior space, wherein
- the metallic patch includes opposite upper and lower edges,
- the metallic patch is positioned so that the upper edge of the metallic patch extends continuously along the lower margin of the wall distal from the upper margin of the wall, and the lower edge of the metallic patch extends continuously along the curvilinear peripheral edge of the base,
- the upper edge of the metallic patch includes a first downwardly curved portion,
- the first downwardly curved portion of the upper edge of the metallic patch curves downwardly toward the base,
- the first downwardly curved portion of the upper edge of the metallic patch is positioned at a first end of the lengthwise ends of the construct,
- the first downwardly curved portion of the upper edge of the metallic patch is positioned along the lower margin of the wall,
- the first downwardly curved portion of the upper edge of the metallic patch is spaced apart from the upper margin of the wall,
- the upper edge of the metallic patch includes a second downwardly curved portion,
- the second downwardly curved portion of the upper edge of the metallic patch curves downwardly toward the base,
- the second downwardly curved portion of the upper edge of the metallic patch is positioned at a second end of the lengthwise ends of the construct,
- the second downwardly curved portion of the upper edge of the metallic patch is positioned along the lower margin of the wall, and
- the second downwardly curved portion of the upper edge of the metallic patch is spaced apart from the upper margin of the wall.
A construct for heating a food item in a microwave oven, the construct comprising:
- a base;
- an upright wall extending upwardly from the base, the base and the upright wall together at least partially defining a cavity for receiving a food item;
- and
- a microwave energy shielding element overlying a portion of the wall, wherein
- the microwave energy shielding element includes an upper edge extending around the cavity,
- the upper edge of the microwave energy shielding element includes a downwardly curved portion,
- the downwardly curved portion of the upper edge of the microwave energy shielding element curves downwardly toward the base,
- the downwardly curved portion of the upper edge of the microwave energy shielding element extends partially around the cavity, and
- the downwardly curved portion of the upper edge of the microwave energy shielding element overlies a portion of the wall.
Dependencies are inferred from the claim text.