发明授权
- 专利标题： Method for making foil packaging
- 专利标题（中）： 箔包装方法
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申请号： US293317申请日： 1989-01-04
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公开(公告)号： US4951446A公开(公告)日： 1990-08-28
- 发明人: Walter Holzer
- 申请人： Walter Holzer
- 专利权人： Walter Holzer
- 当前专利权人： Walter Holzer
- 主分类号： B29C65/00
- IPC分类号： B29C65/00 ; B29C65/18 ; B29C65/76 ; B65B61/18 ; B65D75/48 ; B65D75/58
摘要：
A method for making easily openable foil packages. The method comprises the step of forming a longitudinal seam and a transverse seam intersecting with each other, thereby providing grip surfaces which, when pulled apart, break the seal. The apparatus for forming the seam comprises bifurcated tool elements which come together in two orthogonal steps. The package so formed by the apparatus operating in accordance with the method is also novel.