专利名称：Process and device for testing the tightness
of a flexible plastic container
发明人：Bernd Schenk申请号：US07/487210申请日：19900301公开号：US05025657A公开日：19910625
摘要：In a process for testing the tightness of a flexible collapsible container which incondition of use is sealed by means of a screw cap screwed on a spout, the container isevacuated after its manufacture, tightly sealed and subsequently subjected toatmospheric pressure. If the container is tight, it will remain its shape caused by thevacuum. The device for the application of this process consists essentially of a suctionbell on which the container is placed and features a rotor unit with the aid of which a capcan be screwed on the container. The invention enables as such a simple and dependabletesting of collapsible plastic containers, but also of containers of stable form as well asclosures, specifically screw caps.
申请人：SCHENK; HELGA
代理机构：Jeffers, Hoffman & Niewyk
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