Patent EA-000312-B1 (EA)
Title: Cigarette and method of manufacturing cigarette for electrical smoking system
Inventor: ADAMS JOHN M
IPC: A24D3/17
Filed: 1996-06-06
Abstract: 1. A method of manufacturing cigarettes having a tobacco rod portion and a filter tipping portion, said tobacco rod portion comprising a tobacco plug at one end and a tubular element at an opposite end and a void between said tobacco plug and tubular element, said method comprising the steps of: - forming a continuous tobacco rod by placing 2-up tobacco plugs and 2-up hollow plugs in spaced, alternating relation from one another and wrapping a tobacco web and an overwrap about said spaced apart plugs; - severing said continuous rod at a mid-point of selected ones of consecutive tobacco plugs so as to form a plurality of 2-up tobacco rod portions; - establishing an associated pair of individual tobacco rod portions by severing at least one of said 2-up tobacco rod portions; - separating said associated pair of individual tobacco rod portions so as to define a space axially disposed between said separated singular tobacco rod portions; - establishing 2-up filter tipping plugs; - establishing 2-up cigarette rods by interposing said established 2-up filter tipping plugs between said separated, associated pair of individual tobacco rod portions, by bringing said individual tobacco rod portions and said interposed 2-up filter tipping plug into abutting relationship and by subsequently wrapping a tipping paper about said 2-up filter tipping plug and adjacent portions of said abutting, pair of individual tobacco rod portions; and - severing the 2-up cigarette rod into individual cigarettes. 2. The method of manufacturing cigarettes as claimed in Claim 1, wherein said step of wrapping tobacco web and overwrap comprises the steps of directing a ribbon of tobacco mat and a ribbon of overwrap together with a continuous succession of alternating spaced apart tobacco and hollow plugs through a garniture such that the tobacco web is wrapped immediately about the tobacco and hollow plugs and the overwrap is wrapped about the tobacco mat. 3. The method as claimed in Claim 2, wherein an anchoring bead of adhesive is applied along a side of the tobacco web which contacts said tobacco and hollow plugs. 4. The method as claimed in Claim 3, wherein said wrapping step includes applying a plurality of laminating beads of adhesive to a side of the overwrap which contacts the tobacco web upon completion of the wrapping step. 5. The method as claimed in Claim 4, wherein said adhesive applying steps are proximate in time to completion of the wrapping step so as to permit relative movement between said tobacco web and said overwrap during said wrapping step. 6. The method as claimed in Claim 4, wherein said wrapping step includes application of adhesive along one edge portion of the overwrap and folding said first edge portion over an opposite edge portion of the overwrap to form a seam along the continuous tobacco rod. 7. The method as claimed in Claim 6, wherein opposing edge portions of the tobacco web are folded into an abutting relationship, said tobacco web being retained in its folded condition by said seam along the edge portions of the overwrap. 8. A cigarette comprising a tobacco rod portion and a filter tipping portion, said tobacco rod portion and filter tipping portion attached by a tipping paper so as to define a tipped end of said tobacco rod portion; said tobacco rod portion comprising a tobacco plug at a second end of said tobacco rod portion, a tubular element at the tipped end of said tobacco rod portion, a tobacco web wrapped about said tobacco plug and said tubular element and an overwrap wrapped about said tobacco web; said tobacco rod including a bead of adhesive between said tobacco plug and said tobacco web, said first bead of adhesive adhering said tubular plug and said tobacco plug to said tobacco web; said overwrap including a seam along said tobacco rod whereat an edge portion of said overwrap overlaps an opposite edge portion of said overwrap, said seam including a bead of adhesive between said overlapping edge portions of said overwrap; said tobacco web having opposite edge portions folded into opposing edge to edge relation along said tobacco rod portion, said overwrap retaining said tobacco web in its folded condition. 9. The cigarette as claimed in Claim 8 wherein said opposite edge portions of said tobacco web are situated adjacent to said seam of said overwrap. 10. A cigarette constructed in accordance with Claim 1. 11. A cigarette constructed in accordance with the method of Claim 7. 12. A method of manufacturing cigarettes comprising steps of: - establishing a succession of 2-up hollow plugs in alternating relation to 2-up tobacco plugs and wrapping said succession of plugs in a tobacco web and overwrap so as to produce a continuous rod; - cutting the resultant continuous rod to establish associated pairs of singular tobacco rod plugs; - separating the members of each associated pair of singular tobacco rod plugs so as to establish a space between each associated pair of singular tobacco rod plugs; - placing a 2-up filter tipping plug in said space between each a pair of separated, singular tobacco rod plugs; - ringing said 2-up filter tipping plug and said singular tobacco rod plugs together into abutting relation; - subsequently wrapping tipping paper about said placed 2-up filter tipping plug and about adjacent portions of said abutting singular tobacco rod plugs to form a 2-up cigarette; and - severing the 2-up cigarette into individual cigarettes.