A device for controlling free-burn rate of and reducing...

A - Human Necessities – 24 – F

Patent

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A24F 13/00 (2006.01)

Patent

CA 2209239

A device and process for using same is described for controlling free burn rate of a lit cigarette. The device is mountable on a cigarette and is adapted to permit insertion and movement of the cigarette into the device. The device includes a unit which controls rate of air diffusion to reduce supply of oxygen for supporting tobacco combustion by the lit cigarette coal. The structure for controlling rate of air diffusion is non-combustible at combustion temperature of a lit cigarette coal. By use of this device, the number of puffs per cigarette is greatly increased and, depending upon the selected design of the device for controlling free burn rate can reduce sidestream smoke emitted by a lit idle cigarette.

L'invention concerne un dispositif et un procédé pour réguler la vitesse de combustion libre d'une cigarette allumée. Le dispositif peut être monté sur une cigarette et il est conçu pour permettre une insertion et un mouvement de la cigarette dans le dispositif. Le dispositif comprend une unité qui régule la vitesse de diffusion de l'air pour diminuer l'apport en oxygène assurant la combustion du tabac de la cigarette allumée. Le dispositif pour réguler la vitesse de diffusion de l'air est non combustible à la température de la combustion d'une cigarette allumée. En utilisant ce dispositif, on augmente considérablement le nombre de bouffées que l'on peut tirer d'une cigarette et, en fonction de la conception choisie pour le dispositif pour réguler la vitesse de combustion libre, on peut diminuer la fumée émise par la cigarette allumée en attente.

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