发明名称 Dust-free sealer for valve bags
摘要 The invention provides for a sealing device for a valve bag. The sealing device has two sections separated by a perforated seam. Each section is secured to one side of the valve channel and has an adhesive surface covered by a protective sheet. The two sections are perforated by the filling tube when the valve bag is filled, once the valve bag is filled the protective sheet is cleaned and removed and the two sections of the sealing device are pressed together and secured by the interaction of their adhesive surfaces.
申请公布号 US7166344(B2) 申请公布日期 2007.01.23
申请号 US20030360165 申请日期 2003.02.06
申请人 DEAN JAMES 发明人 DEAN JAMES
分类号 B32B3/00;B65D30/24 主分类号 B32B3/00
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