British American Tobacco (investments) Limited

Union Camp Corporation

British-american Tobacco Company Limited

Richard Geoffrey Hook

Colin Campbell Greig

David John Dittrich

Kevin Gerard McAdam

Rosemary Elizabeth O'Reilly

John Lawson Beven

The invention relates to a smoking article ( ) having a high proportion of non-combustible, inorganic material and a relatively low level of visible sidestream. The smoking article includes a substantially non-combustible, wrapper ( ) which extends along the full length of the smoking material rod and enwraps a combustible fuel source ( ) and aerosol generator ( ), both of which extend substantially along the length of the smoking material rod. Various suitable fuel source systems and aerosol generating systems are described. The article has a visible burn line which advances along the article and produces an ash which can be removed by the smoker in the normal way.

Smoking article with non-combustible wrapper, combustible fuel source and aerosol generator

Smoking article with non-combustible wrapper, combustible fuel source

A rod of smoking material, for use as a smoking article or a part thereof is formed by a multiplicity of laminiform self-sustaining smoking-material elements, for example discs, extending transversely of the rod and located in face-to-face contact with one another. The thickness of the elements, which may be up to 2.5 mm, is suitably within a range of 0.1 to 0.8 mm. It may vary within the rod or from element to element along the rod. The material of the elements may have inherent smoke-permeability sufficient to afford an acceptable pressure drop through the rod or the elements may be formed or provided with smoke passages therethrough, with either the same relative distribution of passages from one element to the next or with adjacent elements so oriented in relation to each other as to provide smoke passages of predetermined form through the rod. The smoking material of the elements preferably extends over an area less than the cross-sectional area of the rod, suitably over 10 to 40% of that area. One or more additives may be applied to some or all of the elements either uniformly or in selected parts thereof. The elements may be secured together by adhesive and or by being enclosed in a wrapper. The elements may be formed with protrusions from or undulations of faces thereof.

Smoking-material rods and a method of making such rods

Growing community of inventors

Winchester, United Kingdom

Richard Geoffrey Hook