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    • 6. 发明授权
    • Cigarette
    • 香烟
    • US3664350A
    • 1972-05-23
    • US3664350D
    • 1969-12-12
    • WALL BYRON T
    • WALL BYRON T
    • A24D3/04
    • A24D3/043
    • A cigarette comprising a filter, a roll of tobacco, a wrapper surrounding the filter and tobacco which has a plurality of air ingress openings in an area adjacent to but ahead of the filter, and means overlying said openings to impede the ingress of air therethrough until the cigarette has been burned away to predetermined position and then automatically to uncover the openings for ingress of air. The atmospheric air blending with the smoke generated by burning the tobacco cools the smoke and precipitates condensibles which are caught and held by the filter.
    • 一种香烟,其包括过滤器,一卷烟草,围绕过滤器的包装纸和烟草,其在与过滤器相邻但在其前方的区域中具有多个空气入口,以及覆盖所述开口以阻止空气进入其中的装置,直到 香烟已经被燃烧到预定位置,然后自动地露出用于进入空气的开口。 与燃烧烟草产生的烟气混合的大气混合烟雾,并沉淀由过滤器捕获和保持的可冷凝物。