Smoking article with a restrictor

A smoking article filter (114) according to the invention includes a flow restrictor (126) and a cavity (146) downstream of the flow restrictor. The flow restrictor includes an orifice (130) or flow channel for directing smoke into the cavity. The filter is attached to a tobacco rod (112) with tippi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LI SAN, SNYDER TONY, WILLIAMS DWIGHT, GARTHAFFNER MARTIN, JUPE RICHARD, BRAUNSHTEYN MIKE, DWYER ROLAND W, OLEGARIO RAQUEL
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CIGARETTES CIGARS HUMAN NECESSITIES MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES MOUTHPIECES FOR CIGARS OR CIGARETTES SMOKERS' REQUISITES TOBACCO TOBACCO SMOKE FILTERS
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Beschreibung
Zusammenfassung:	A smoking article filter (114) according to the invention includes a flow restrictor (126) and a cavity (146) downstream of the flow restrictor. The flow restrictor includes an orifice (130) or flow channel for directing smoke into the cavity. The filter is attached to a tobacco rod (112) with tipping paper (116) and includes an air-admissible ventilating zone (140) at a location downstream of the restrictor. The invention also provides smoking articles including filters comprising restrictors and methods of making filters and smoking articles.