发明名称 Variable ventilation mouthpiece for a smoking article
摘要 A variable ventilation mouthpiece for a smoking article includes first and second sets of vents, the first set serving to admit ambient air into the mouthpiece, and the second set adapted to variably introduce the admitted air into the smokestream for varying the level for dilution of the smokestream in relation to the suction applied by the smoker to the mouthpiece.
申请公布号 US4949736(A) 申请公布日期 1990.08.21
申请号 US19880168730 申请日期 1988.03.16
申请人 R. J. REYNOLDS TOBACCO COMPANY 发明人 ROBERTS, DONALD L.;BOLDRIDGE, DAVID W.
分类号 A24D3/04 主分类号 A24D3/04
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