发明授权
- 专利标题： Film drive unit for a packaging machine
- 专利标题（中）： 包装机的胶片驱动装置
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申请号： US144816申请日： 1988-01-13
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公开(公告)号： US4910943A公开(公告)日： 1990-03-27
- 发明人: Alfred A. Taylor , John P. North
- 申请人： Alfred A. Taylor , John P. North
- 专利权人： Taylor Alfred A,North John P
- 当前专利权人： Taylor Alfred A,North John P
- 优先权： AUXPH9866 19870114
- 主分类号： B65B41/16
- IPC分类号： B65B41/16 ; B65B9/20 ; B65B41/00 ; B65B41/12 ; B65H20/12
摘要：
A film drive unit 10 for a packaging machine to move sheet material 16 through the unit 10, the film drive unit 10 includes at least one rotatably driven roller 18 which is hollow and to which a vacuum is delivered to the interior thereof, with the roller 18 having an outer cylindrical member 30 with radially extending passages 39 to which the vacuum is applied to draw the sheet material 16 into contact with the cylindrical outer surface of the roller 18.
公开/授权文献
- US6024389A Vehicle door latch with stiffness adjustment 公开/授权日：2000-02-15