# US 6,718,987 B1 · Smokers′ article > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,718,987 B1 - Document ID: US6718987B1 - Status: Granted - Kind: B1 - Application number: 09/936,443 - Filed: 2001-09-10 - Granted: 2004-04-13 - Earliest claimed: 1999-03-12 - Inventors: Seiran Pogossian; Semen Pogossian - Web page: https://patentgrep.com/patent/US6718987B1 ## CPC - A24D 3/04: Tobacco smoke filters characterised by their shape or structure - A24D 1/04: with mouthpieces or filter-tips - A24D: CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES ## Abstract The present invention pertains to the tobacco industry and may be used in the production of smokers' articles that include a mouthpiece and consist of a new product that conjugates the functional properties and qualities of cigarettes with a cardboard mouthpiece and of filter cigarettes. To this end, this smokers' article comprises a tobacco rod wrapped in a separate sleeve of cigarette paper as well as a flexible and elongated mouthpiece which is connected to said rod and has the size of a cardboard mouthpiece. The mouthpiece is made of a pressed fibrous material and includes a filter member, which is arranged on the tobacco rod side, which is integral with the tubular portion of the mouthpiece and which is made in the shape of a continuous cylinder having a diameter equal to that of the mouthpiece tubular portion. The tobacco rod is connected to the mouthpiece by a paper ring. The fact that the cylindrical filtration member is integral with the mouthpiece and consists of the same fibrous material prevents the smoke from flowing without undergoing a filtration cycle in the mouthpiece and also prevents tobacco chips from falling therein. ## Claims ### Claim 1 A smokers' article characterized in that it comprises a tobacco rod wrapped in a separate sleeve made of cigarette paper, a resilient and elongated mouthpiece which is connected to said rod and which is made of a pressed fibrous material and includes a filter member arranged on the tobacco rod side and made integral with a tubular portion of said mouthpiece, said filter member being a continuous cylinder with a diameter substantially equal to that of the elongated mouthpiece tubular portion and which total length of said mouthpiece exceeds that of said tobacco rod; the length of the said cylindrical filter member being at least half as great as the length of the tobacco rod and at least one third as great as the length of the said tubular portion of the mouthpiece, the tobacco rod being connected to the elongated mouthpiece with a paper ring overlapping, at least, the surface of said cylindrical filter member, and the fibrous material of the mouthpiece being pressed to such a degree so as to ensure restoration of an open flow area of the tubular portion open flow area after removal of a compressive load under which the tubular portion has been fully compressed. ### Claim 2 (depends on 1) The smokers' article according to claim 1 wherein acetate fiber is used as the material for making said resilient mouthpiece and said cylindrical filter member. ### Claim 3 (depends on 1) The smokers' article according to claim 1 wherein an additional filter member is arranged between said tobacco rod and said cylindrical filter member. ### Claim 4 (depends on 1) The smokers' article according to claim 1 wherein an additional filter member is made of activated carbon. ### Claim 5 (depends on 1) The smokers' article according to claim 1 wherein said resilient and elongated mouthpiece made of a pressed fibrous material is wrapped in a paper sleeve and wherein a paper ring is connected to the outer surface of said paper sleeve with a glue. ### Claim 6 (depends on 1) The smokers' article according to claim 1 wherein said resilient and elongated mouthpiece made of a pressed fibrous material has a plasticized outer ourface. ### Claim 7 (depends on 6) The smokers' article according to claim 6 wherein a polyvinyl acetate emulsion is used as a plasticizer. ### Claim 8 A smokers' article characterized in that it comprises a tobacco rod wrapped in a separate sleeve made of cigarette paper, a resilient and elongated mouthpiece which is connected to said rod and which is made of a pressed fibrous material and includes a filter member arranged on the tobacco rod side and made integral with a tubular portion of said mouthpiece, said filter member being a continuous cylinder with a diameter equal to that of the mouthpiece tubular portion and which total length of said mouthpiece exceeds that of said tobacco rod; the length of the said cylindrical filter member being at least half as great as the length of the tobacco rod and at least one third as great as the length of the said tubular portion of the mouthpiece, the tobacco rod being connected to the elongated mouthpiece with a paper ring overlapping, at least, the surface of said cylindrical filter member, and the fibrous material of the mouthpiece being pressed to such a degree so as to ensure restoration of an open flow area of the tubular portion after removal of a compressive load under which the tubular portion has been fully compressed, wherein an additional filter member is arranged behind said cylindrical filter member inside said mouthpiece tubular portion. ### Claim 9 (depends on 8) The smokers' article according to claim 8 wherein acetate fiber is used as the material for making said resilient mouthpiece and said cylindrical filter member. ### Claim 10 (depends on 8) The smokers, article according to claim 8 wherein an additional filter member is arranged between said tobacco rod and said cylindrical filter member. ### Claim 11 (depends on 8) The smokers' article according to claim 8 wherein an additional filter member is made of activated carbon. ### Claim 12 (depends on 8) The smokers' article according to claim 8 wherein said resilient and elongated mouthpiece made of a pressed fibrous material is wrapped in a paper sleeve and wherein a paper ring is connected to the outer surface of said paper sleeve with a glue. ### Claim 13 (depends on 8) The smokers' article according to claim 8 wherein said resilient and elongated mouthpiece made of a pressed fibrous material has a plasticized outer surface. ### Claim 14 (depends on 13) The smokers, article according to claim 13 wherein a polyvinyl acetate emulsion is used as a plasticizer. ### Claim 15 A smokers' article characterized in that it comprises a tobacco rod wrapped in a separate sleeve made of cigarette paper, a resilient and elongated mouthpiece which is connected to said rod and which is made of a pressed fibrous material and includes a filter member arranged on the tobacco rod side and made integral with a tubular portion of said mouthpiece, said filter member being a continuous cylinder with a diameter equal to that of the mouthpiece tubular portion and which total length of said mouthpiece exceeds that of paid tobacco rod; the length of the said cylindrical filter member being at least half as great as the length of the tobacco rod and at least one third as great as the length of the said tubular portion of the mouthpiece, the tobacco rod being connected to the elongated mouthpiece with a paper ring overlapping, at least, the surface or said cylindrical filter member, and the fibrous material of the mouthpiece being pressed to such a degree so as to ensure restoration of an open flow area of the tubular portion after removal of a compressive load under which the tubular portion has been fully compressed, wherein said resilient and elongated mouthpiece made of a pressed fibrous material has a plasticized outer surface, wherein aid resilient and elongated mouthpiece made of a pressed fibrous material with the plasticized outer surface has a ring portion which is not covered with a plasticizer, is arranged behind said paper ring and provides additional air inflow in smoking. ### Claim 16 (depends on 15) The smokers' article according to claim 15 wherein acetate fiber is used as the material for making said resilient mouthpiece and said cylindrical filter member. ### Claim 17 (depends on 15) The smokers' article according to claim 15 wherein an additional filter member is arranged between said tobacco rod and said cylindrical filter member. ### Claim 18 (depends on 15) The smokers' article according to claim 15 wherein an additional filter member is made of activated carbon. ### Claim 19 (depends on 15) The smokers' article according to claim 15 wherein said resilient and elongated mouthpiece made of a pressed fibrous, material is wrapped in a paper sleeve and wherein a paper ring is connected to the outer surface of said paper sleeve with a glue. ### Claim 20 (depends on 15) The smokers' article according to claim 15 wherein a polyvinyl acetate emulsion is used as a plasticizer.