A filter for a smoking article comprising a flow restrictor (34) configured to cause an increase in velocity of smoke drawn through the filter; and at least one guide surface (36) configured to cause swirling motion of the increased velocity smoke, such that constituents of the smoke impact and are captured by the filter.
申请公布号
WO2013024265(A3)
申请公布日期
2013.08.01
申请号
WO2012GB51937
申请日期
2012.08.09
申请人
BRITISH-AMERICAN TOBACCO (HOLDINGS) LIMITED;BRUNNER, EDWARD STEPHEN HUGH;WILKINS, JONATHAN HUGH;MYSZKO, MAREK;SMITH, SIMON JAMES
发明人
BRUNNER, EDWARD STEPHEN HUGH;WILKINS, JONATHAN HUGH;MYSZKO, MAREK;SMITH, SIMON JAMES
