发明授权
- 专利标题: Roll for guiding web type material
- 专利标题(中): 滚动指导WEB类型材料
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申请号: US453619申请日: 1989-12-19
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公开(公告)号: US5114062A公开(公告)日: 1992-05-19
- 发明人: Friedrich Kuhn , Wolfgang Drefs , Hans Ruff , Siegbert Scheuter
- 申请人: Friedrich Kuhn , Wolfgang Drefs , Hans Ruff , Siegbert Scheuter
- 申请人地址: DEX Heidenheim
- 专利权人: J.M. Voith GmbH
- 当前专利权人: J.M. Voith GmbH
- 当前专利权人地址: DEX Heidenheim
- 优先权: DEX3843246 19881222
- 主分类号: B65H18/20
- IPC分类号: B65H18/20 ; B65H19/28 ; B65H20/12 ; B65H27/00
摘要:
A roll for guidance of web type material, such as paper or cardboard, has a shell that features a multitude of bores. The roll is coordinated with a device for subjecting the roll interior to suction. To hold the web on the roll at standstill, part of these bores can be subjected to suction. In the operation of the roll, air trapped between the web and the roll shell can enter the roll also through the remaining bores and escape in the roll area that is not looped by the web.
公开/授权文献
- US6138558A Trash and recycling center 公开/授权日:2000-10-31
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