Packaging with passage regions and sealing tool for production thereof
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United States of America Patent
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Apr 10, 2012
Grant Date -
Feb 21, 2008
app pub date -
Dec 13, 2002
filing date -
Dec 14, 2001
priority date (Note) -
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Abstract
A packaging (1) for a material that can be heated, especially microwave-heated, in the packaged state, which packaging has at least one sealing region (5) which becomes locally permeable when a predetermined internal pressure is exceeded. The or each sealing region of such a kind has at least one intended passage region (7, 9), which comprises a choke (9) for the contents of the packaging and an apex (7) pointing towards the interior of the packaging. As the choke there is used a channel-like, triangular or star-shaped interrupt ion or cut-out.
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