发明名称 |
PRODUCTION OF CIGARETTE FILTER UNITS |
摘要 |
<p>Cigarette filter units are made in a long strip with alternate portions of fibrous and pourable filter material. The fibrous portions are first attached at spaced intervals to a sheathing strip which is wrapped practically right around them to form a cylinder with regular empty spaces between the fibrous portions and openings into the spaces. In a special unit, air is extracted from these spaces so that when the spaces enter a chamber containing pourable filter material, they suck the material in to fully fill the spaces. excess filter material is brushed off the filter unit, and a sealing strip is stuck over the openings.</p> |
申请公布号 |
CA1040047(A) |
申请公布日期 |
1978.10.10 |
申请号 |
CA19760267337 |
申请日期 |
1976.12.07 |
申请人 |
F. J. BURRUS & CIE;BAUMGARTNER PAPIERS S.A. |
发明人 |
BOEGLI, SERGE;LEBET, JEAN-PIERRE |
分类号 |
A24D3/02;(IPC1-7):24C5/50 |
主分类号 |
A24D3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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