Paperboard container having increased rigidity and method of manufacturing thereof
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United States of America Patent
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Jan 31, 2017
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app pub date -
Jan 12, 2007
filing date -
Jan 13, 2006
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Abstract
The invention relates to pressed paperboard containers, such as disposable paper plates and bowls, having increased strength and rigidity, and the processes used to form such containers by the formation of non-radial pleats at outer regions of the container. The invention also provides pleats about the outer periphery that are non-linear along the length of the pleat. Such non-radial and non-linear pleats are formed by forming non-radial and non-linear scores in a blank of paperboard converted into the container geometry.
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