FILTER COMPONENTS, FILTERS, SMOKING ARTICLES, AND RELATED METHODS, ALL FOR THE CONTROLLED DELIVERY OF AEROSOLS

摘要

A filter for a smoking article comprises a mouth end filter segment and a rod end filter segment. The rod end filter segment has a passage extending longitudinally therethrough. The passage has a diameter of about 1.0 mm or greater. In one embodiment, the rod end filter segment is comprised of an infinite pressure drop material. In another embodiment, the rod end filter segment is comprised of a low pressure drop material having a hollow tubular element disposed within to define the passage with an inner diameter greater than about 1.55 mm. Air dilution means are disposed in one of said filter segments to admit ventilating air into the filter.

主权项

1. A filter for a smoking article comprising a mouth end filter segment and a rod end filter segment, said rod end filter segment having a passage extending longitudinally therethrough, said passage having a diameter of about 1.0 mm or greater, said rod end filter segment comprised of an infinite pressure drop material, and air dilution means disposed in one of said filter segments for admitting ventilating air into said filter.