IP Library Granted Patent US 7,473,875
Granted Patent B2
US 7,473,875 · App. 11/567,385 · Granted Jan 6, 2009

Microwave food heating package with removable portion

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Quick Facts
Patent No.
US 7,473,875
App. No.
11/567,385
Granted
Jan 6, 2009
Kind
B2
Abstract

Various blanks are provided for forming sleeves, containers, and other constructs for heating, browning, and/or crisping of a food item in a microwave oven, and for holding and/or transporting the food item after heating. The various blanks, sleeves, containers, and other constructs include a removable portion defined by one or more lines of disruption that enable the removable portion to be separated from the remainder of the blank, sleeve, container, or other construct.

Claims (45)

1. A blank for forming a construct, comprising:

a plurality of adjoined panels, each panel having a first dimension extending in a first direction and a second dimension extending in a second direction substantially perpendicular to the first direction, the plurality of adjoined panels including

a main panel having

a first end defining at least a portion of a peripheral edge of the blank,

a second end opposite the first end, and

a pair of opposed side edges, and

an end panel joined to the second end of the main panel along a pair of spaced apart, substantially arcuate fold lines; and

a microwave energy interactive element overlying at least a portion of at least one of the adjoined panels,

wherein the blank includes a removable portion defined by a line of disruption initiating and terminating at the peripheral edge between and at a distance from each side edge of the main panel, the line of disruption including a portion that extends into the end panel between the arcuate fold lines to define a tab.

2. The blank of claim 1 , wherein the line of disruption comprises a cut line, a score line, a kiss cut line, a perforated line, a zigzag cut line, a zipper cut line, or any combination thereof.

3. The blank of claim 1 , wherein

the plurality of adjoined panels further includes

a first minor panel joined to the main panel,

a second minor panel joined to the main panel,

a first major panel joined to the first minor panel, and

a second major panel joined to the second minor panel, and

the main panel, the first minor panel, the second minor panel, the first major panel, and the second major panel are joined respectively to one another along respective substantially parallel fold lines extending in the first direction.

4. The blank of claim 3 , wherein the plurality of adjoined panels further includes

a first partial end panel joined to the first major panel along a first curved fold line, and

a second partial end panel joined to the second major panel along a second curved fold line.

5. The blank of claim 1 , wherein the peripheral edge extends in the second direction.

6. The blank of claim 1 , wherein the end panel is substantially lentiform in shape.

7. The blank of claim 1 , wherein the portion of the line of disruption that extends into the end panel comprises a substantially continuous cut line.

8. The blank of claim 1 , wherein the microwave energy interactive element comprises a susceptor, a foil, a segmented foil, or any combination thereof.

9. The blank of claim 1 , wherein the microwave energy interactive element converts at least a portion of impinging microwave energy into thermal energy.

10. A construct for heating, browning, and/or crisping a food item therein, comprising:

a first main panel and a second main panel in an opposed configuration;

a first minor panel and a second minor panel in an opposed configuration, the first minor panel and the second minor panel being joined to the first main panel and the second main panel along respective fold lines to at least partially define an interior space, wherein the first main panel, the second main panel, the first minor panel, and the second minor panel each have a respective first end defining an opening at a first end of the construct and a respective second end opposite the first end;

an end panel foldably joined to the second end of the first main panel, the end panel being adapted to be folded inwardly towards the interior space; and

a microwave energy interactive element overlying at least a portion of at least one of the first main panel, second main panel, first minor panel, and second minor panel on a side of the respective panel facing the interior space,

wherein the construct includes a removable portion defined by a line of disruption initiating and terminating at the first end of the construct within the first main panel, the line of disruption including a portion that extends into the end panel to define a tab, wherein the tab extends from and lies in the same plane as the first main panel.

11. The construct of claim 10 , wherein the portion of the line of disruption that extends into the end panel is a substantially continuous cut line configured to strike the tab from the end panel when the end panel is folded towards the interior space.

12. The construct of claim 10 , wherein

the end panel is a first end panel, and

the construct further comprises a second end panel foldably joined to the second end of the second main panel.

13. The construct of claim 12 , wherein the line of disruption includes a first portion extending in a first direction from the first end of the first main panel, a second portion extending obliquely from the first portion, and a third, arcuate portion.

14. The construct of claim 13 , wherein the arcuate portion lies substantially within the first end panel.

15. The construct of claim 12 , wherein the first end panel and the second end panel are foldably joined to the first main panel and the second main panel along respective arcuate fold lines.

16. The construct of claim 12 , wherein the first end panel and the second end panel are adapted to be folded toward the interior space in a superposed configuration.

17. The construct of claim 16 , wherein

the first end panel and the second end panel folded towards the interior space in a superposed configuration define a second end of the construct opposite the first end.

18. The construct of claim 10 , wherein the microwave energy interactive element comprises a susceptor, a foil, a segmented foil, or any combination thereof.

19. The construct of claim 10 , wherein

the microwave energy interactive element comprises a susceptor, and

the susceptor overlies substantially all of the first main panel, second main panel, first minor panel, and second minor panel on the side of each respective panel facing the interior space.

Assignments (8)
RELEASE OF SECURITY INTEREST Recorded Apr 15, 2026
From: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS SUCCESSOR‑IN‑INTEREST TO U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: GRAPHIC PACKAGING INTERNATIONAL, LLC
Reel/Frame 075415/0575 →
SECURITY INTEREST Recorded Apr 1, 2021
From: GRAPHIC PACKAGING INTERNATIONAL, LLC
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 055811/0676 →
RELEASE OF SECURITY INTEREST Recorded Mar 10, 2021
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: GRAPHIC PACKAGING INTERNATIONAL, LLC; FIELD CONTAINER QUERETARO (USA), L.L.C.
Reel/Frame 055545/0204 →
SECURITY AGREEMENT Recorded Mar 8, 2021
From: GRAPHIC PACKAGING INTERNATIONAL, LLC
To: U.S. BANK NATIONAL ASSOCIATION
Reel/Frame 055520/0204 →
CERTIFICATE OF CONVERSION Recorded Jan 29, 2018
From: GRAPHIC PACKAGING INTERNATIONAL, INC.
To: GRAPHIC PACKAGING INTERNATIONAL, LLC
Reel/Frame 045182/0983 →
SECURITY AGREEMENT Recorded Jan 8, 2018
From: GRAPHIC PACKAGING INTERNATIONAL, LLC
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 045020/0746 →
SECURITY INTEREST Recorded Jan 5, 2018
From: GRAPHIC PACKAGING INTERNATIONAL, LLC (FORMERLY KNOWN AS GRAPHIC PACKAGING INTERNATIONAL, INC.); FIELD CONTAINER QUERETARO (USA), L.L.C.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 045009/0001 →
NOTICE AND CONFIRMATION OF GRANT OF SECURITY INTEREST IN PATENTS Recorded Dec 22, 2014
From: GRAPHIC PACKAGING HOLDING COMPANY; GRAPHIC PACKAGING CORPORATION; GRAPHIC PACKAGING INTERNATIONAL, INC.; BLUEGRASS LABELS COMPANY, LLC; FIELD CONTAINER QUERETARO (USA), L.L.C.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 034689/0185 →