公开(公告)号：US3958390A

公开(公告)日：1976-05-25

申请号：US538136

申请日：1975-01-02

申请人： Frank E. Pringle, Jr. ,  Harvey Heiner ,  Gary Lee Gehrke

发明人： Frank E. Pringle, Jr. ,  Harvey Heiner ,  Gary Lee Gehrke

IPC分类号： B29C65/00 ,  B29C65/10 ,  B65B9/06 ,  B65B9/22 ,  B65B31/04 ,  B65B51/20

CPC分类号： B65B51/20 ,  B29C65/10 ,  B29C66/1122 ,  B29C66/133 ,  B29C66/4312 ,  B29C66/4322 ,  B29C66/49 ,  B29C66/83413 ,  B29C66/849 ,  B29C66/8744 ,  B65B31/04 ,  B65B9/06

摘要： The method of and apparatus for packaging units in flexible sheet material which is heat-sealable at least on one side, in which a web of the material is formed into a tube with an inside-face-to-inside-face longitudinal seam by bringing the side margins of the web into inside-face-to-inside-face engagement and pressing them together at a sealing station, and heating the inside faces of said margins as they converge toward one another and meet at the sealing station by directing a stream of hot gas against them. Transverse seals are formed across the tube at package length intervals with a unit to be packaged in the tube between successive transverse seals. The gas may be a preservative gas for preservation of the unit in each package. Additionally, preservative gas may be introduced into the tube downstream from said sealing station.

摘要翻译： 用于将柔性片材中的​​单元封装的方法和装置，其至少在一侧可热封，其中材料的网状物通过带有内表面到内侧的纵向接缝形成为管 纸幅的侧边缘进入内对面接合并在密封站处将它们压在一起，并且当它们朝向彼此会聚时加热所述边缘的内侧面，并且通过引导流 对他们的热气。 以封装长度间隔跨越管形成横向密封，其中待封装在连续横向密封件之间的管中的单元。 气体可以是用于保存每个包装中的单元的防腐气体。 此外，防腐气体可以从所述密封站下游引入管中。