发明授权
- 专利标题： Filter cigarette
- 专利标题（中）： 过滤香烟
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申请号： US691052申请日： 1985-01-14
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公开(公告)号： US4601298A公开(公告)日： 1986-07-22
- 发明人: Walter A. Nichols , Reginald W. Newsome
- 申请人： Walter A. Nichols , Reginald W. Newsome
- 申请人地址： NY New York
- 专利权人： Philip Morris Incorporated
- 当前专利权人： Philip Morris Incorporated
- 当前专利权人地址： NY New York
- 主分类号： A24D1/04
- IPC分类号： A24D1/04 ; A24D3/04 ; A24B3/04
摘要：
A filter cigarette is provided which comprises a tobacco rod which includes a charge of tobacco wrapped in cigarette paper, an integral, axially aligned wrapped cylindrical filter plug, and tipping paper. The filter plug is divided into first and second segments with the first segment being rotatable with respect to the second segment. Rotation of the first segment with respect to the second segment causes axial movement of the first segment which serves to vary the air dilution value of the cigarette by uncovering a permeable region in the plug wrapping.