Apparatus for preparing a food item in a microwave oven
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H05B-006/80
H05B-006/64
A47J-036/02
출원번호
US-0378574
(2009-02-17)
등록번호
US-8872079
(2014-10-28)
발명자
/ 주소
Lafferty, Terrence P.
출원인 / 주소
Graphic Packaging International, Inc.
대리인 / 주소
Womble Carlyle Sandridge & Rice, LLP
인용정보
피인용 횟수 :
0인용 특허 :
73
초록▼
An apparatus for preparing a food item in a microwave oven comprises a tray including a plurality of elevated heating areas and a plurality of channels disposed between the elevated heating areas, the elevated heating areas each including a microwave energy interactive material, a cover pivotably co
An apparatus for preparing a food item in a microwave oven comprises a tray including a plurality of elevated heating areas and a plurality of channels disposed between the elevated heating areas, the elevated heating areas each including a microwave energy interactive material, a cover pivotably connected to the tray for pivoting the cover relative to the tray between an open position and a closed position, and a locking feature operative for releasably maintaining the cover in the closed position.
대표청구항▼
1. A microwave heating apparatus, comprising: a single piece of a laminate, wherein the single piece of the laminate comprises microwave energy interactive material supported on a polymer film, the microwave energy interactive material being operative for heating in response to microwave energy;a po
1. A microwave heating apparatus, comprising: a single piece of a laminate, wherein the single piece of the laminate comprises microwave energy interactive material supported on a polymer film, the microwave energy interactive material being operative for heating in response to microwave energy;a portion of the single piece of the laminate being a press-formed integral tray of the apparatus;another portion of the single piece of the laminate being a press-formed integral cover of the apparatus; andthe press-formed integral tray and the press-formed integral cover being foldably joined to one another along a line of disruption in the single piece of the laminate,wherein the press-formed integral tray includes a base and a peripheral wall that define an interior space of the press-formed integral tray,the wall extends upwardly from a periphery of the base,the upwardly extending wall extends around the interior space,an upper surface of the base comprises a plurality of heating areas and a plurality of downwardly extending press-formed channels disposed between the heating areas,a lower, exterior surface of the base comprises a plurality downwardly extending press-formed protrusions, the press-formed protrusions being respectively vertically aligned with the press-formed channels,the heating areas are elevated relative to the press-formed channels, andthe heating areas each include the microwave energy interactive material. 2. The apparatus of claim 1, wherein the heating areas have a substantially planar surface for being in contact with food. 3. The apparatus of claim 1, wherein the press-formed channels have a substantially arcuate profile. 4. The apparatus of claim 1, wherein the press-formed channels are substantially parallel to one another. 5. The apparatus of claim 1, wherein the press-formed integral cover includes a plurality of heating areas, the heating areas each including the microwave energy interactive material, anda plurality of press-formed channels disposed between the heating areas, wherein the press-formed channels extend upwardly away from the press-formed integral tray when the press-formed integral cover is in a closed position. 6. The apparatus of claim 5, wherein the heating areas of the press-formed integral cover have a substantially planar surface for being in contact with food. 7. The apparatus of claim 5, wherein the heating areas of the press-formed integral tray and the heating areas of the press-formed integral cover are in register with one another when the press-formed integral cover is in the closed position. 8. The apparatus of claim 5, wherein the heating areas of the press-formed integral tray and the heating areas of the press-formed integral cover are out of register with one another when the press-formed integral cover is in the closed position. 9. The apparatus of claim 5, wherein the press-formed integral cover further includes a substantially planar rim extending along a peripheral margin of the press-formed integral cover. 10. The apparatus of claim 9, wherein the rim defines an uppermost portion of the press-formed integral cover when the press-formed integral cover is in the closed position. 11. The apparatus of claim 9, wherein the rim is substantially coplanar with the heating areas of the press-formed integral cover. 12. The apparatus of claim 1, wherein a peripheral portion of the base extends around the heating areas and defines a lowermost portion of the press-formed integral tray. 13. The apparatus of claim 5, wherein the heating areas of the press-formed integral cover extend into the interior space when the press-formed integral cover is in a closed position. 14. The apparatus of claim 1, wherein the press-formed integral cover includes a locking tab extending from the press-formed integral cover, andthe press-formed integral tray includes a receptacle for receiving the locking tab. 15. The apparatus of claim 1, wherein another portion of the single piece of the laminate is shaped to further define a separator panel disposed between the press-formed integral cover and the press-formed integral tray. 16. A microwave heating apparatus, comprising: a piece of a laminate, wherein the laminate comprises microwave energy interactive material supported on a polymer film, the microwave energy interactive material being operative for heating in response to microwave energy;a portion of the piece of the laminate being a press-formed integral tray of the apparatus; andanother portion of the piece of laminate being a press-formed integral cover of the apparatus;the press-formed integral tray and the press-formed integral cover being foldably joined to one another along a line of disruption in the laminate so that the press-formed integral cover can be moved between an open position and a closed position,the press-formed integral tray including an upright wall extending around an interior space of the press-formed integral tray,wherein the press-formed integral tray and the press-formed integral cover each comprise an interior side and an exterior side, andthe interior side of the press-formed integral tray and the interior side of the press-formed integral cover each include a plurality of elongate press-formed protrusions that extend towards the interior space when the press-formed integral cover is in the closed position, anda plurality of elongate press-formed indentations between the press-formed protrusions, wherein the press-formed indentations extend away from the interior space when the press-formed integral cover is in the closed position, andthe exterior side of the press-formed integral tray and the exterior side of the press-formed integral cover each respectively include a plurality of press-formed protrusions in register with the press-formed indentations on the interior side of the press-formed integral tray and the interior side of the press-formed integral cover. 17. A microwave heating apparatus, comprising: a single piece of a laminate, wherein the single piece of the laminate comprises microwave energy interactive material supported on a polymer film, the microwave energy interactive material being operative for heating in response to microwave energy;a portion of the single piece of the laminate being a press-formed integral tray of the apparatus;the press-formed integral tray including an upright wall extending around an interior space of the press-formed integral tray;another portion of the single piece of the laminate being a press-formed integral cover of the apparatus;the press-formed integral tray and the press-formed integral cover being foldably joined to one another along a line of disruption in the single piece of laminate so that the press-formed integral cover can be moved between an open position and a closed position relative to an upper opening of the press-formed integral tray,wherein the press-formed integral tray includes an interior side and an exterior side, the interior side of the press-formed integral tray including a plurality of substantially planar heating areas for being in contact with food on the press-formed integral tray, anda plurality of elongate press-formed channels between the heating areas, wherein the press-formed channels extend downwardly away from the heating areas so that the elongate press-formed channels are not for being in contact with food on the press-formed integral tray, andthe exterior side of the press-formed integral tray including a plurality of indentations in register with the heating areas on the interior side of the press-formed integral tray, anda plurality of press-formed protrusions in register with the press-formed channels on the interior side of the press-formed integral tray. 18. A microwave heating apparatus, comprising: a piece of a laminate, wherein the piece of the laminate comprises microwave energy interactive material on a polymer film, the microwave energy interactive material being operative for heating in response to microwave energy;a portion of the piece of the laminate being a press-formed integral tray of the apparatus;the press-formed integral tray including an upright wall extending around an interior space of the press-formed integral tray;another portion of the laminate being a press-formed integral cover of the apparatus;the press-formed integral tray and the press-formed integral cover being joined to one another along a fold line in the piece of laminate so that the press-formed integral cover can be moved between an open position and a closed position relative to an upper opening of the press-formed integral tray,wherein the press-formed integral tray and the press-formed integral cover each comprise an interior side and an exterior side, andthe interior side of the press-formed integral tray and the interior side of the press-formed integral cover each include a plurality of substantially planar heating surfaces for being in contact with food, anda plurality of press-formed channels between the heating surfaces, wherein the press-formed channels extend away from the heating surfaces so that the press-formed channels are not for being in contact with food, andwherein the press-formed integral cover includes a tab opposite the fold line joining the press-formed integral tray and the press-formed integral cover to one another, wherein the tab comprises the laminate so that the tab is integral with the press-formed integral tray and the press-formed integral cover,the press-formed integral tray includes a slot for receiving the tab within the interior space of the press-formed integral tray, the slot being opposite the fold line joining the press-formed integral tray and the press-formed integral cover to one another, andwhen the press-formed integral cover is in the closed position with the tab received in the slot, the press-formed integral cover extends obliquely downwardly from the fold line towards the tab and slot. 19. A microwave heating apparatus, comprising: a single piece of a laminate consisting essentially of a layer of microwave energy interactive material supported on a polymer film, the microwave energy interactive material being operative for heating in response to microwave energy,a layer of paperboard having a basis weight of from about 60 to about 330 lb/ream, anda layer of adhesive positioned directly between the layer of microwave energy interactive material and the layer of paperboard, so that the layer of microwave energy interactive material is joined to the layer of paperboard by the layer of adhesive;a portion of the single piece of the laminate being a press-formed integral tray of the apparatus;the press-formed integral tray including a base, and an upright peripheral wall extending around an interior space of the press-formed integral tray;another portion of the single piece of the laminate being a press-formed integral cover of the apparatus;the press-formed integral tray and the press-formed integral cover being foldably joined to one another along a line of disruption in the single piece of laminate so that the press-formed integral cover can be moved between an open position and a closed position relative to an upper opening of the press-formed integral tray, whereinthe polymer film defines an interior surface on an interior side of the press-formed integral tray and the press-formed integral cover,the paperboard defines an exterior surface on an exterior side of the press-formed integral tray and the press-formed integral cover,the interior side of the press-formed integral tray and the interior side of the press-formed integral cover include elongate press-formed protrusions that extend towards one another when the press-formed integral cover is in the closed position, the press-formed protrusions of the press-formed integral cover extending into the interior space of the press-formed integral tray, wherein the press-formed protrusions of the press-formed integral tray and the press-formed protrusions of the press-formed integral cover are substantially parallel to one another when the press-formed integral cover is in the closed position, andelongate, arcuate press-formed indentations between the press-formed protrusions, wherein the press-formed indentations extend away from one another when the press-formed integral cover is in the closed position, andthe exterior side of the press-formed integral tray and the exterior side of the press-formed integral cover include a plurality of press-formed protrusions in register with the respective press-formed indentations on the interior side of the press-formed integral tray and the interior side of the press-formed integral cover.
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