发明名称 |
Method for evacuating a vacuum package filled with granular material and apparatus for carrying out the method |
摘要 |
<p>Method and apparatus for evacuating a vacuum package made from a thin-walled and flexible packaging material and filled with granular material. An open end of a filled package is folded in such a manner that a narrow gap is formed which constitutes an open communication between an interior and an exterior of the package. At least a part of the package is placed in a vacuum space and vacuumized for removing gasses from the package through the gap. Upon evacuation the package is sealed airtightly. Further, on at least a part of the packaging material defining the gap a force is exerted which reduces the gap width, so that the gap constitutes a filter for the granular material, whereby the granular material is retained inside the package during the evacuation of the package. <IMAGE></p> |
申请公布号 |
EP0714831(A1) |
申请公布日期 |
1996.06.05 |
申请号 |
EP19950203206 |
申请日期 |
1995.11.22 |
申请人 |
SARA LEE/DE N.V. |
发明人 |
AARTS, MATHIAS LEONARDUS CORNELIS |
分类号 |
B65B31/02;(IPC1-7):B65B31/02 |
主分类号 |
B65B31/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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