Cardboard Filter For Cigarettes, Cigarette And Manufacturing Method Thereof
AssigneeRepublic Technologies (NA) LLC
InventorOlivier Partouche
Life of this patent
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Abstract
The invention relates to a cardboard filter (1) for cigarettes, formed by folding, winding and gluing a cardboard strip (2). According to the invention, the cardboard strip (2) is folded to form a central portion (21) having a series of lobes (3, 4, 5, 6, 7) angularly equally distributed around a central axis (22) of the filter (2) and a peripheral portion (23) surrounding the central portion (21), the lobes (3, 4, 5, 6, 7) and the peripheral portion (23) delimiting gas passage channels (24) around the central axis (22).
Claims14
A cardboard filter for cigarettes, formed by folding, winding and gluing a cardboard strip, wherein the cardboard strip is folded to form a central portion having a series of lobes angularly equally distributed around a central axis of the filter and a peripheral portion surrounding the central portion, the lobes and the peripheral portion delimiting gas passage channels around the central axis.
Dependencies are inferred from the claim text.