| Patent application number | Description | Published |
|---|
| 20080230079 | Multi-component filter providing improved flavour enhancement - A multi-component filter for a smoking article comprises: a first flavour-releasing segment proximate a mouth end of the filter; and a second flavour-releasing segment located immediately upstream of the first flavour-releasing segment. The first flavour-releasing segment comprises at least one flavour-bearing thread and the second flavour-releasing segment comprises flavour-bearing cellulosic particles. The multi-component filter may further comprise a rod end segment comprising filtration material located upstream of the second flavour-releasing segment, distant from the first flavour-releasing segment. | 09-25-2008 |
| 20090044817 | Multi-component filter for a smoking article - A multi-component filter for a smoking article comprises: a mouth end segment; and a flavour release segment upstream of the mouth end segment. The flavour release segment comprises plant leaf and a filter plasticiser. The multi-component filter preferably further comprises a rod end segment comprising filtration material upstream of the flavour release segment. Preferably, one or both of the mouth end segment and the rod end segment comprises at least one liquid flavourant. The rod end segment may include a sorbent. | 02-19-2009 |
| 20100288293 | SMOKING ARTICLE WITH IMPROVED FLOW RESTRICTION ELEMENT - A smoking article includes a rod of smokable material and a filter including a flow restriction element attached to the rod of smokable material. The flow restriction element includes a first upstream integral tubular portion, a second downstream integral tubular portion of substantially the same external diameter as the first tubular portion, and a third central integral tubular portion located between the first and second tubular portions. The third tubular portion is of reduced external diameter compared to the first and second tubular portions. A transverse barrier having at least one orifice therein is disposed between a first upstream cavity at least partially defined by an inner periphery of the first tubular portion and a second downstream cavity at least partially defined by an inner periphery of the second tubular portion. A ventilation zone in communication with the second cavity is also provided at a location along the filter. | 11-18-2010 |
