Multi-component food packaging for microwave oven

Patent metadata

Field	Value
Publication number	US-9737085-B2
Application number	US-201414280316-A
Country	US
Kind code	B2
Filing date	May 16, 2014
Priority date	Nov 19, 2009
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

A multi-component package is provided which enables simultaneous heat cooking of a food product which does not require a long cooking time and a food product which requires a longer cooking time. The multi-component package includes a lower container including a bottomed, lower container main body for containing a first food product. The container further includes an upper container including an upper container main body for containing a second filled food product. A flange of the lower container main body and a flange of the upper container main body are engaged with each other so that the lower container and the upper container are combined integrally. A vapor vent is provided in a lower container lid material, whereby water vapor generated upon heating of the first food product heats the second food product in the upper container.

First claim

We claim:

1. A method for microwave heating a first and second food product, the method comprising:
providing a multi-component package having a first food product sealed in a lower container by a lid material and a second food product sealed in an upper container, the upper and lower containers being releasably coupled to each other,
shielding the second food product to reduce the amount of microwave radiation heating the second food product to less than the amount of microwave radiation heating the first food product during heating of the first and second food products together in a microwave oven,
venting the lower container through at least one opening in the lid material so that water vapor produced during the heating of the first food product in the lower container will be released through the at least one opening and into a space under the upper container to heat the second food product in the upper container, and
directing the water vapor produced by the first food product through a channel to heat the first food product before venting the water vapor into the space under the upper container, wherein at least a portion of the channel is disposed underneath the first food product.

2. The method according to claim 1 , wherein the lower container further comprises an inner tray nested in the opening of the lower container main body, the inner tray configured to contain the first food product.

3. The method according to claim 1 , wherein the upper container main body comprises a material effective to at least partially shield microwave radiation.

Assignees

• Kraft Foods Group Brands Llc
• Dainippon Printing Co Ltd

Inventors

• Birchmeier Kathryn Marie
• Cogley Paul Andrew
• Sakamoto Noriko
• Otsuka Koji
• Kado Takashi

Classifications

• B65D77/2016

  the cover being maintained by projections or recesses on the container · CPC title

• A23L5/15 Primary

  using wave energy, irradiation, electrical means or magnetic fields, e.g. oven cooking or roasting using radiant dry heat · CPC title

• B65D1/36 Primary

  with moulded compartments or partitions · CPC title

• B65D81/3453

  Rigid containers, e.g. trays, bottles, boxes, cups · CPC title

• H05B6/6408

  Supports or covers specially adapted for use in microwave heating apparatus · CPC title