Back to results
US 4,303,080 AGranted
Method for producing filter cigarettes
AssigneesF. J. Burrus SA, Cie and Baumgartner Papier S. A.
InventorsSerge Boegli, Jean-Pierre Lebet
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneesF. J. Burrus SA, Cie and Baumgartner Papier S. A.
InventorsSerge Boegli, Jean-Pierre Lebet
Estimating the term…
The invention concerns a method for producing a filter cigarette with a filter unit which is provided with a porous or perforated covering strip. A porous or perforated connecting strip joins the tobacco part to the filter unit. The adhesive for connecting the covering strip to the outside of the filter element on the one hand and the adhesive for connecting the connecting strip to the outsides of the filter unit and of the tobacco part on the other hand is applied on those surfaces on the one hand of the covering strip and on the other hand of the connecting strip which are inwardly oriented on the filter cigarette. The adhesive is applied on coating tracks on the sheating strip and on the connecting strip, which said tracks extend so that for any given relative displacement between the said two strips in the longitudinal direction of the filter unit the adhesive coating tracks on the covering strip and on the connecting strip on the other hand always intersect at an angle or at right angles in the radial direction with respect to the longitudinal axis of the filter unit.
In a method of producing a filter cigarette from
In an apparatus for producing a filter cigarette from a filter element, a tobacco unit, a porous or perforated sheathing strip, a connecting strip, and adhesive material, by applying the adhesive material to a portion of the sheathing strip along a set of first coating tracks in a preset direction, subsequently adhesively wrapping the sheathing strip around the filter element, so as to constitute therewith a filter unit, said filter unit having a longitudinal axis, applying the adhesive material along portions of the connecting strip along a set of second coating tracks in a prearranged direction, and thereafter joining said filter unit to said tobacco unit, said preset and prearranged directions forming a prearranged angle with one another, so that in the event of any relative displacement of said strips along said longitudinal axis, said coating tracks in projection appear to intersect one another as viewed in a direction perpendicular to said longitudinal axis,
A filter cigarette produced from
Dependencies are inferred from the claim text.