发明授权
- 专利标题： Tobacco smoke filter
- 专利标题（中）： 烟草烟雾过滤器
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申请号： US511688申请日： 1983-07-07
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公开(公告)号： US4583560A公开(公告)日： 1986-04-22
- 发明人: Takashi Sakai , Kazuo Maeda , Masuo Kawabata , Mituo Kono
- 申请人： Takashi Sakai , Kazuo Maeda , Masuo Kawabata , Mituo Kono
- 申请人地址： JPX Tokyo JPX Tokyo
- 专利权人： Mitsubishi Acetate Co., Ltd,Japan Tobacco Inc.
- 当前专利权人： Mitsubishi Acetate Co., Ltd,Japan Tobacco Inc.
- 当前专利权人地址： JPX Tokyo JPX Tokyo
- 优先权： JPX57-116826 19820707
- 主分类号： A24D3/02
- IPC分类号： A24D3/02 ; A24D3/04 ; A24D3/10
摘要：
A tobacco smoke filter includes a corrugated tape-like wrapping which, together with an outer perforated or otherwise air-permeable paper, defines a set of longitudinal grooves. Each of the grooves includes a blocking member, so as to inhibit direct smoke flow through the grooves and promote a ventilation effect. The blocking members in each groove are longitudinally staggered from one groove to the next to simplify the production of the device.
公开/授权文献
- US5138282A Plural phase-lock loops sharing a common frequency control 公开/授权日：1992-08-11
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