Abstract: A filter (11) for a smoking article (10) comprises a first flowpath (13) through the filter, a second flowpath (14) through the filter, the second flowpath being disposed around the first flowpath, and a selector (16) for allowing flow selectively through the first and second flowpaths.
Type:
Grant
Filed:
November 14, 2013
Date of Patent:
February 24, 2015
Assignee:
British American Tobacoo (Investments) Limited
Inventors:
Mark Bailey, Karl Kaljura, Paul Farenden, David Russell, Wilbert Schoenmakers, Darren Seymour, David Spendlove