发明授权
US4894975A Method and apparatus for making reclosable bags with fastener strips in
a form fill and seal machine
失效
用于制造具有紧固件条的可再封闭袋的方法和装置，其形式为填充和密封机
- 专利标题： Method and apparatus for making reclosable bags with fastener strips in a form fill and seal machine
- 专利标题（中）： 用于制造具有紧固件条的可再封闭袋的方法和装置，其形式为填充和密封机
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申请号： US166024申请日： 1988-03-09
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公开(公告)号： US4894975A公开(公告)日： 1990-01-23
- 发明人: Steven Ausnit
- 申请人： Steven Ausnit
- 申请人地址： NY Orangeburg
- 专利权人： Minigrip, Inc.
- 当前专利权人： Minigrip, Inc.
- 当前专利权人地址： NY Orangeburg
- 主分类号： B31B19/90
- IPC分类号： B31B19/90 ; B65B9/20 ; B65B9/213 ; B65B61/18
摘要：
A method and apparatus for forming a tube and bag from a supply of thin thermoplastic film with the film being formed into tubular shape about a filling tube with the edges of the film brought together and joined solely by a zipper strip having reclosable pressure interlocking members thereon with the zipper strip preferably heat sealed to the film and the zipper strip having a web between the pressure interlocking members which provides a tamper-evident juncture between the edges of the film so that the web must be severed for access to the interior of a bag formed from the film, and individual bags formed from the continuous tube by filling the tube through the filling tube and cross-seaming and cutting individual bags from the continuous film tube.
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