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    • 3. 发明申请
    • CIGARETTE FILTER TO REDUCE SMOKE DELIVERIES IN LATER PUFFS
    • 香烟过滤器,以减少烟雾在晚间PUFFS
    • US20110083687A1
    • 2011-04-14
    • US12577039
    • 2009-10-09
    • Raquel OlegarioSan LiMike BraunshteynRoland W. DwyerRichard Jupe
    • Raquel OlegarioSan LiMike BraunshteynRoland W. DwyerRichard Jupe
    • A24D1/04
    • A24D3/045A24D3/043
    • A smoking article having a tobacco rod adapted to produce mainstream smoke, and a filter having an upstream end portion and a downstream end portion, and wherein the filter is arranged to receive mainstream smoke at the upstream end portion. The filter includes a first filter segment of low particulate efficiency at the upstream end portion; a channeled flow segment adjacent to the first filter segment, the channeled flow segment including a flow channel establishing a substantial portion of a predetermined resistance to draw of the smoking article; a mouthpiece filter segment of low particulate efficiency at the downstream end portion; and a tubular body segment at least partially defining a portion of a cavity between the mouthpiece filter and the channeled flow segment. Tipping paper attaches the filter with the tobacco rod and includes an air-admissible ventilation zone at a location along the tubular body segment.
    • 一种具有适于产生主流烟雾的烟草棒的吸烟制品,以及具有上游端部分和下游端部分的过滤器,并且其中所述过滤器布置成在所述上游端部分处接收主流烟雾。 过滤器包括在上游端部处具有低颗粒效率的第一过滤段; 与第一过滤器段相邻的通道流动段,通道流动段包括建立吸烟制品的预定阻力的实质部分的流动通道; 在下游端部具有低颗粒效率的接口过滤段; 以及管状主体段,其至少部分地限定所述接口过滤器和所述通道流动段之间的空腔的一部分。 接头纸将过滤器与烟草棒连接,并且在沿着管状体部分的位置处包括允许通气的空气区域。