发明名称 |
VERFAHREN ZUM ENTLEEREN VON BEHAELTERN UND VENTIL ZUM AUFRECHTERHALTEN DES NIEDEREN DRUCKES IN BEHAELTERN |
摘要 |
In a method of evacuating a container e.g. by a water-suction device to enable foodstuffs to be preserved, in which a plug 7 is locatable in a container aperture through which air is sucked out, the plug is drawn into the aperture after removal of the low pressure source, and during evacuation a free airway is maintained between the plug and a connecting piece 3 between the container and low pressure source. The airway may comprise radial grooves 10 in the connecting piece 3, or slits (11 Figs. 5, 6) in a plug having flanges (8 Figs. 2, 5, 6) to prevent the plug from coming out of the aperture. <IMAGE>
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申请公布号 |
DE3936098(A1) |
申请公布日期 |
1990.05.03 |
申请号 |
DE19893936098 |
申请日期 |
1989.10.30 |
申请人 |
TEKNOVIA AB, STOCKHOLM, SE |
发明人 |
SVENSSON, GOESTA, STOCKHOLM, SE |
分类号 |
B65D81/20 |
主分类号 |
B65D81/20 |
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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