Tobacco smoke filter
AssigneeCigarette Components Limited
InventorsPaul Francis Clarke, John Charlton
Life of this patent
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Abstract
The present invention provides a tobacco smoke filter or filter element having a longitudinally extending core (2) and a wrapper (4) engaged around the core (2), the wrapper (4) having particulate additive (6) adhered to one or more portion(s) of the radially inner face thereof with said wrapper (4) being free of additive around its circumference at one or both ends of the core.
Claims8
A tobacco smoke filter or filter element comprising a longitudinally extending core and a wrapper engaged around the core from end to end, wherein said wrapper having a radial inner face to which particulate additive adhere at one or more portion(s) thereof and having a circumference free of said additive at one or both ends of the core.
A filter cigarette comprising a filter or filter element, said filter or filter element comprises a longitudinally extending core and a wrapper engaged around the core from end to end, said wrapper having a radial inner face to which particulate additive adhere at one or more portion(s) thereof and having a circumference free of said additive at one or both ends of the core.
A multiple length rod comprising a plurality of filter or filter elements joined integrally end to end in mirror image relation, wherein said filter or filter element comprises a longitudinally extending core and a wrapper engaged around the core from end to end, said wrapper having a radial inner face to which a particulate additive adhere at one or more portion(s) thereof and having a circumference free of said additive at one or both ends of the core.
A method of making a smoke filter or element which comprises continuously advancing a continuous core and a continuous strip having particulate additive adhered to a face thereof at longitudinally spaced regions, continuously wrapping the advancing strip around the advancing core (optionally simultaneously with core formation) with particulate additive against the core, and cutting the resulting continuously produced wrapped core into finite length.
Dependencies are inferred from the claim text.