Patent References 2948282 3288145 3353543 3368566 3477440 3804695 3858587 Tobacco smoke filter Apparatus for combining a tube with a cigarette filter Smoking article having an ignition suppression disk InventorAssigneeApplicationNo. 06/250839 filed on 04/03/1981US Classes:493/43, Including heating493/44, Including fluid contact for forming493/47, By assembling dissimilar filter materials (e.g., fiber and powdered charcoal, etc.)493/48, With application of forced air, vacuum or vibration to assist handling493/49Including plasticizer, adhesive, coating, or impregnantExaminersPrimary: Millin, V.Attorney, Agent or FirmInternational ClassesA24D 3/00 (20060101)A24D 3/04 (20060101) AbstractA tobacco smoke filter is disclosed, which provides tobacco flavor enrichment of smoke passing therethrough. The filter comprises a reconstituted tobacco member formed from a coherent sheet of reconstituted tobacco which has been uniformly embossed with a series of parallel grooves, and then compacted and bonded into a self-sustaining dimensionally stable axially elongated body whose longitudinal axis extends parallel to the embossed grooves. The embossed grooves provide the reconstituted tobacco member with flow passages having a high surface area for contact with smoke passing therethrough, so as to enable the smoke to become tobacco flavor-enriched by extracting tobacco flavor from the reconstituted tobacco. The filter may also include an axially elongated fibrous filtering material member disposed concentrically with respect to the reconstituted tobacco member and having a draw resistance greater than that of the reconstituted tobacco member, whereby smoke passing through the filter will be directed primarily through the reconstituted tobacco member.Field of SearchSMOKE SEPARATOR OR TREATERHaving a polymer By adding constituent to smoke stream Air Having destructible, fusible, soluble, or deformable container for treatment material Having means to vary smoke flow rate Interior surface causes particular flow characteristic By use of specific filter mass Plural diverse elements Including particulate material Plasticizer or adhesive coating Occupying plural, separate, distinct zones | |