Manufacturing container or tube from paper; or other manufacturi – Cigarette filter making – With shaping or compacting of filter material
Patent
1984-11-09
1987-04-07
Millin, Vincent
Manufacturing container or tube from paper; or other manufacturi
Cigarette filter making
With shaping or compacting of filter material
493 42, 131339, 131340, 131336, A24D 302
Patent
active
046557369
ABSTRACT:
A method of manufacturing tobacco smoke filter of filamentous material with at least one end thereof having a preselected fused area embedded in and over at least a portion of the cross-sectional area thereof having a preselected fused area extending over at least a portion of the cross-sectional area thereof to provide a flow directing baffle to direct smoke through the unfused end portion. The method includes forming a longitudinally extending porous rod of fusible material, cutting the rod into filter unit lengths and conveying the filter units in a longitudinal path normal to the longitudinal axis of the filter units past a fusing station located to one side of the conveying path. The fusing station forms an indented and fused area in one end of each filter unit as the filter units are conveyed there past. The fusing station can be a rotating wheel with conical teeth corresponding to the configuration of the indented area which teeth are embedded into the filter units. As the filter units are conveyed past the wheel the wheel rotates embedding a tooth into a filter unit.
REFERENCES:
patent: 3958498 (1976-05-01), Payne
patent: 4256122 (1981-03-01), Johnson
patent: 4331166 (1982-05-01), Hale
patent: 4457319 (1984-07-01), Lamb et al.
Brown & Williamson Tobacco Corporation
Lamb Charles G.
Millin Vincent
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