发明授权
US4964538A Package for flowable material 失效
可流动材料包装

Package for flowable material
摘要:
A package for a flowable material comprising, an elongated collapsible tube defining a chamber to receive the material, the tube having a tapered shoulder, with the shoulder having a generally central opening. The package has a separate insert comprising a hollow tubular section received in the opening, with the tubular section having an outer end portion located outside of the shoulder, and an inner end portion extending into the chamber a sufficient distance to prevent extrusion of the material in the region of the shoulder through the tubular section, and a device for sealingly engaging the shoulder around the opening.
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