Smoking article and method of manufacturing a smoking article
AssigneesBritish American Tobacco (Investments) Limited, British American Tobacco Japan, Ltd., Tobacco Research and Development Institute (Proprietary) Limited
InventorsGerhard Le Roux, Karl Kaljura, Mark Austin, Gary Fallon, John Richardson, Kevin Blick, Mike Simpson
Life of this patent
Estimating the term…
Abstract
A smoking article (10) comprising a first part (13) configured to be movable relative to a second part (11) of the smoking article. The first part (13) having a first engaging surface (31). The second part (11) having a second engaging surface (32), the second engaging surface engagable with the first engaging surface (31) to limit relative longitudinal movement between the first and second parts. The first engaging surface (31) and/or second engaging surface (32) is preferably formed on a folded over portion of sheet material.
Claims68
A smoking article comprising:
- a first part configured to be moveable relative to a second part of the smoking article,
- the first part having a first engaging surface,
- the second part having a second engaging surface, the second engaging surface engagable with the first engaging surface to limit relative longitudinal movement between the first and second parts,
- wherein the first part comprises a sleeve and a filter attached to a mouth end of the sleeve;
- and
- the sleeve comprises an inner layer in the form of an inner cylindrical tube and an outer layer in the form of an outer cylindrical tube, and
- the inner cylindrical tube of the sleeve and the outer cylindrical tube of the sleeve have a forward end surrounding the second part and a rearward end receiving the filter,
- wherein the first engaging surface is within the inner cylindrical tube.
A method of manufacturing a smoking article comprising a first part and a second part, the method comprising:
- providing the first part of the smoking article having a first engaging surface;
- providing the second part of the smoking article having a second engaging surface;
- wherein the first engaging surface is configured to engage with the second engaging surface to limit relative longitudinal movement between the first and second parts,
- forming a first part comprising a sleeve with an inner layer and an outer layer and a filter attached to a mouth end of the sleeve,
- wherein the sleeve comprises an inner layer in the form of an inner cylindrical tube and an outer layer in the form of an outer cylindrical tube, and
- the inner cylindrical tube of the sleeve and the outer cylindrical tube of the sleeve have a forward end surrounding the second part and a rearward end receiving the filter, and
- the first engaging surface is within the inner cylindrical tube.
An apparatus configured to manufacture smoking articles comprising:
- a cutting assembly configured to cut an elongate sheet material into discrete blanks for forming sleeves;
- an engaging surface generation means configured to generate a first engaging surface on a sleeve;
- and
- a wrapping mechanism configured to wrap a blank of sheet material around at least a part of a tobacco unit, such that the blank forms a sleeve moveable relative to the at least a part of a tobacco unit,
- wherein the wrapping mechanism is configured to form the sleeve with an inner layer and an outer layer, with a filter attached to the sleeve, and to arrange the inner layer in the form of an inner cylindrical tube and an outer layer in the form of an outer cylindrical tube,
- wherein the inner cylindrical tube of the sleeve and the outer cylindrical tube of the sleeve have a forward end surrounding the at least a part of a tobacco unit and a rearward end receiving the filter, and
- wherein the first engaging surface is within the inner cylindrical tube.
Dependencies are inferred from the claim text.