EP0105683A1 - Einstellbare Filterzigarette und Verfahren zu ihrer Herstellung - Google Patents

Einstellbare Filterzigarette und Verfahren zu ihrer Herstellung Download PDF

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Publication number
EP0105683A1
EP0105683A1 EP83305690A EP83305690A EP0105683A1 EP 0105683 A1 EP0105683 A1 EP 0105683A1 EP 83305690 A EP83305690 A EP 83305690A EP 83305690 A EP83305690 A EP 83305690A EP 0105683 A1 EP0105683 A1 EP 0105683A1
Authority
EP
European Patent Office
Prior art keywords
end segment
filter
rod
mouth
segment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83305690A
Other languages
English (en)
French (fr)
Other versions
EP0105683B1 (de
Inventor
Walter Allen Nichols
Reginald Wayne Newsome
Max Hausermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philip Morris Products Inc
Original Assignee
Philip Morris USA Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/429,392 external-priority patent/US4532943A/en
Priority claimed from US06/439,588 external-priority patent/US4527573A/en
Application filed by Philip Morris USA Inc filed Critical Philip Morris USA Inc
Priority to AT83305690T priority Critical patent/ATE24659T1/de
Publication of EP0105683A1 publication Critical patent/EP0105683A1/de
Application granted granted Critical
Publication of EP0105683B1 publication Critical patent/EP0105683B1/de
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/041—Tobacco smoke filters characterised by their shape or structure with adjustable means for modifying the degree of filtration of the filter

Definitions

  • the present invention relates to filter cigarettes which are adjustable by the smoker to vary one or more of the air dilution value, the resistance to draw value, and the flavour of the cigarette.
  • the sleeve or the filter plug may be removed from the cigarette by the smoker and not readily replaced. Also, registry between the two sets of openings may be inadvertently destroyed by a slight axial movement of the sleeve or plug. Accordingly, the air dilution value selected by the smoker is not ensured of any degree of consistency. Yet another problem associated with a number of these prior devices is that they have not been readily adaptable to a high rate of production on cigarette making machinery of conventional design.
  • a filter cigarette which can be readily manufactured on conventional cigarette making equipment, that is adjustable by the smoker to vary one or more of the air dilution value, the resistance to draw value, and the flavour of the cigarette.
  • a filter cigarette comprising a tobacco rod, a substantially cylindrical filter plug, a substantially air impermeable plug wrapping circumscribing the filter plug, and tipping paper circumscribing and joining the filter plug and a portion of the tobacco rod, characterised in that the filter plug comprises a mouth-end segment connected at least axially to a rod-end segment for rotation about the axis of the cigarette.
  • At least one opening is made through the tipping paper, which is substantially air impermeable, and in the underlying portion of the filter plug wrap, such that, as the first segment of the filter is rotated about the axis of the central core, the opening in the tipping paper and the opening in the underlying portion of the filter plug are in varying degrees of registry to permit varying amounts of air to enter the filter and combine with smoke, thereby varying the air dilution value of the cigarette.
  • the air dilution value is the ratio of the volume of air to the volume of smoke exiting the mouth end of the filter and is expressed as a percentage.
  • the present invention also includes within its scope a filter cigarette without the variable dilution feature but which has a variable resistance to draw provided by assembling the filter and impermeable tipping paper as described above but without the openings therethrough and providing a plurality of longitudinally extending channels in the first segment and a plurality of longitudinally extending channels in the second segment of the filter which are in varying degrees of registry as the first segment is rotated about the axis of the core, thereby providing paths of less resistance for the flow of the smoke through the filter, thus varying the resistance to draw value of the cigarette.
  • a filter cigarette having the previously described variable dilution feature as well as the sets of channels of the variable resistance to draw embodiment.
  • the channels of this embodiment are configured such that, as the air dilution value is decreased by rotation of the first segment, the channels are subject to increasing deregistry which increases the resistance to draw. The net effect of the increased air dilution and deregistry of the channels is to maintain a constant resistance to draw.
  • Yet another embodiment included within the scope of the present invention is a filter cigarette with or without the variable dilution feature and with or without the variable or constant resistance to draw feature which is provided with an encapsulated flavourant which is released in varying amounts responsive to rotation of the first segment about the longitudinal axis of the core.
  • the wrapping has a plurality of first longitudinally extending, substantially air impermeable depressions spaced about the circumference of the first segment which are registrable with corresponding second longitudinally extending, substantially air impermeable depressions spaced about the circumference of the second segment, such that as the first segment is rotated relative to the second segment, the degree of registry of the first and second depressions varies, thereby admitting varying amounts of air to the interior of the first segment.
  • the air enters through the air transmissive tipping paper and travels along the depressions into the exposed portions of the abutting ends of the first and second segments.
  • the air transmissive property of the tipping paper may be provided either by employing air permeable tipping paper or by providing a plurality of openings in air impermeable tipping paper which overlie and communicate with the depressions in the first segment or the second segment or both segments.
  • the cigarettes of the present invention may be manufactured employing conventional equipment with only minor modifications and a method of manufacturing is provided characterised in that it comprises cutting a tobacco rod and a wrapped filter plug to a desired length, bringing the tobacco rod and the wrapped filter plug into axial alignment, overwrapping the tobacco rod and the wrapped filter plug with tipping paper, forming a circumferential cut in the wrapped filter plug and the tipping paper, the circumferential cut extending partially through the wrapped filter plug so as to leave a central bore along the longitudinal axis of the wrapped filter plug, thereby permitting rotational movement of the segments of the filter plug defined by the circumferential cut.
  • variable dilution cigarette of the present invention is shown in Figs. 1, 2 and 3 and comprises a tobacco rod 1, which is a substantially cylindrical charge of tobacco 2 wrapped in cigarette paper 3.
  • the tobacco rod is joined in abutting end-to-end relation to a wrapped filter plug 4 which has a circumferentially extending cut 5 intermediate the mouth end and the tobacco rod end defining a central axial core 16, as shown in Figs. 3, 7 and 21, and which divides the filter plug into a first mouth-end segment 6 and a second rod-end segment 7.
  • the filter plug and a portion of the mouth end of the tobacco rod are circumscribed by non-porous tipping paper 8.
  • the tipping paper has a circumferentialy extending row of closely spaced perforations 9 which overlie the second segment 7 of the filter plug adjacent the mouth end of the tobacco rod 1. This row of perforations divides the tipping paper into a first mouth-end band 10 and a second rod-end band 11.
  • band 10 is attached adjacent the mouth end to the first segment 6 of the filter plug, preferably by means of an adhesive band 13.
  • the inner surface of band 11 joins the second segment 7 of the filter plug to the mouth end of the tobacco rod 1, preferably by means of a band of adhesive 12 extending, in width, between the row of perforations 9 and the rod end of band 11. At least one opening is made through the tipping paper and the underlying plug wrap at a position on band 10 intermediate the row of perforations 9 and the cut 5.
  • the openings, 14 and 15 respectively are formed simultaneously, they are initially in registry and variable dilution is achieved by rotating band 10 and breaking the row of perforations 9, thereby allowing band 10 and the segment 6 to rotate in unison about the central core 16.
  • This core may typically have a diameter within the range of from about 12.7% to about 38.1% of the diameter of the filter plug, a value of about 25.4% being preferable. This range will permit segment 6 to be rotated 360 0 without breaking the core 16. Rotation of the band 10 rotates opening 14 relative to opening 15 thus varying the degree of registry, thereby varying the air dilution value of the cigarette.
  • Both the tipping paper 8 and the wrapping of the filter plug 4 are substantially air impermeable wrappings which restrict any radial air flow through the filter paper and underlying plug wrap to the area of registry between openings 14 and 15.
  • the filter paper may be any commercially available, substantially air impermeable, paper and the filter plug may be any conventional, substantially cylindrical filter such as a cellulose acetate filter or the like.
  • the filter material can be of uniform density or it can contain a substantially cylindrical axial core of relatively high density filter material circumscribed by filter material of relatively lower density. When it is desired to use the non-uniform density filter plug, the higher density filter material preferably forms the previously described axial core 16. Any conventional, substantially air impermeable plug wrap may be employed.
  • Means for permitting the smoker to select the specific air dilution ratio may be provided through indicia (not shown) printed on opposite sides of the row of perforations 9, and which are made readily visible and are designed to show the degree of registry of the openings.
  • a second preferred embodiment shown in Figs. 4 and 5 comprises a tobacco rod 1 containing a charge of tobacco 2 wrapped in cigarette paper 3 and joined to filter plug 4 in abutting, end-to-end relation.
  • the filter plug has a circumferentially extending cut 5 intermediate the mouth end and the tobacco rod end which divides the filter plug into a first mouth-end segment 6 and a second rod-end segment 7.
  • the filter plug is joined to the tobacco rod by tipping paper 17, preferably by a band of adhesive 18 on the inner surface of the tipping paper which overlaps the abutting ends of the filter and the tobacco rod.
  • the tipping paper extends from a position on the tobacco rod adjacent the filter to a point intermediate the cut 5 and the mouth end of the segment 6.
  • Opening 14 is made through the tipping paper at a position between the cut 5 and the mouth end of the tipping paper.
  • a corresponding opening 15 is made in the plug wrap at a position underlying opening 14. Openings 14 and 15 are preferably made simultaneously and thus are initially in registry.
  • the circumferentially extending cut 5 defines a central, axially extending core 16 having a preferred diameter as noted in connection with the first preferred embodiment.
  • that portion of filter plug segment 6 which is not wrapped by tipping paper 17 is grasped by the smoker and rotated about the central core 16, thus rotating openings 15 relative to openings 14, thereby varying the degree of registry of the two sets of openings and, accordingly, the air dilution value of the cigarette.
  • the openings 14 and 15 of the first and second embodiment may be omitted or retained and a plurality of axially extending passages 19 made in the first and second segments 6 and 7 of the filter plug.
  • These passages in the first and second segments 6 and 7 are made such that, as the first segment 6 of the filter plug is rotated about the axis of the central core 16, the passages in the first and second segments are in varying degrees of registry thus varying the resistance to draw of the cigarette.
  • Variable resistance to draw may be selected in conjunction with variable dilution such that the resistance to draw is constant as the dilution is varied or may be selected in the absence of variable dilution to provide a variable resistance to draw.
  • a flavour encapsulation means is inserted within the filter.
  • This means may comprise an axially extending cellophane tube 20 containing individual cells 21 of flavourant which are ruptured in response to rotation of the first segment of the filter plug about the central core 16.
  • increased rotation of the first segment of the filter plug serves to increase the twist experienced by the cellophane tube, thereby rupturing an increasing number of flavourant cells.
  • the smoker can thus vary the intensity of flavour released by the flavour capasule by rotating the filter plug a desired amount.
  • the flavour system of this embodiment may be used in conjunction with any of the embodiments.
  • Fig. 8 shows an alternative arrangement for maintaining a rotational connection between the first segment 6 and the second segment 7 of the filter plug 4.
  • plastic extrusion 22 formed as part of the filter plug, lies along the axis of the first and second segments.
  • the cut 5 extends down to this extrusion. It will be appreciated by those of ordinary skill in the art that the plastic extrusion shown in Fig. 8 can be used with any of the first, second and third embodiments.
  • a tobacco rod 100 comprising a substantially cylindrical charge of tobacco 101 enclosed in cigarette paper 102, is axially aligned in abutting end-to-end relation with a filter plug 103, which comprises a first segment 104 and a second segment 105.
  • the first and second segments are axially aligned and abut each other at the line of abutment 106.
  • the second segment abuts the tobacco rod 100 at the line of abutment 107 and is joined thereto.
  • Means are provided joining the first segment to the second segment for rotation of the first segment about the longitudinal axis of the cigarette.
  • the first and second segments are wrapped in a substantially air impermeable plug wrap 108 which has a plurality of first depressions 109 which are substantially air impermeable and spaced about the circumference of the first segment. These depressions extend from a position intermediate the mouth end of the first segment and the line of abutment 106, to the line 106.
  • a corresponding set of depressions 110 which are registrable with the first depressions, extend from the line 106 to a position intermediate line 106 and line 107.
  • the filter tow is not exposed and air does not flow through the tipping paper, along the depressions and into the filter tow.
  • the filter plug 103 and the tobacco rod 100 are circumscribed by a layer of tipping paper 111 which extends from a position on the first segment to a position on the tobacco rod adjacent line 107.
  • the tipping paper 111 is air transmissive, and, as shown in the figures, comprises an air impermeable paper which is rendered air transmissive by means of rows of perforations 112, which communicate with the second set of depressions 110.
  • the tipping paper 111 may be air permeable and the perforations 112 omitted. These perforations, when present, may overlie the second segment, or the first segment, or both segments.
  • the perforations may be formed by conventional means known to those skilled in the art, such as electrostatic discharge, mechanical perforation, or laser perforation.
  • the depressions may be formed by passing the filter rod between rollers having ridges which make the depressions in the plug wrap.
  • Means join the first and second segments such that the first segment is rotatable about the longitudinal axis of the cigarette.
  • This means in one preferred embodiment shown in the figures, is an extruded plastic rod 113.
  • This embodiment may be formed by extruding a plastic rod, enveloping it in the filter tow and overwrapping with plug wrap. The filter is then slit circumferentially down to the extruded rod, whereby the first segment is rendered rotatable relative to the second segment.
  • a conventional cellulose acetate filter may be cut circumferentially so as to leave a central core about which the first segment may be rotated, or a filter may be prepared having an axial core of a denser filter tow surrounded by a less dense filter tow and then circumferentially slit down to the denser core, thereby rendering the first segment rotatable relative to the second segment.
  • the tipping paper 111 extends from the mouth end of the first segment 104 to a position on the tobacco rod adjacent the line of abutment 107.
  • the tipping paper 111 has a circumferentially extending row of closely spaced perforations forming a break-away line 113 which overlies the second segment intermediate the depressions 110 and the line of abutment 107.
  • This line 113 divides the tipping paper into a mouth-end sleeve and a rod-end sleeve.
  • the rod-end sleeve attaches the second segment to the tobacco rod, preferably by means of an overlapping band of adhesive material 114 as shown in Figs. 9 to 11.
  • the mouth-end sleeve is attached to the first segment 104, preferably by a band of adhesive 115 intermediate the mouth end and the depressions 109, as shown in Figs. 9 to 11.
  • the row of perforations 113 is preferably made employing a laser perforation system to provide closely spaced and small diameter perforations such that the line 113 retains only sufficient strength to remain intact during application of the tipping paper to the plug wrap and tobacco rod.
  • the laser system is employed to make about 39 perforations per cm (about 100 perforations per inch).
  • the mouth end of the cigarette and the tobacco column are grasped and rotated one relative to the other to break the row of perforations 113 and rotate the first segment, thereby varying the degree of registry of the depressions 109 and 110 and varying the amount of air flowing through the openings 112 into the depressions and then into the filter material where the air mixes with the smoke, thereby diluting the smoke and changing the air dilution value of the cigarette.
  • the tipping paper 111 extends as in the first embodiment but bands 116 and 117 are interposed between the tipping paper 111 and the plug wrap 108.
  • the first band 116 extends from the mouth end of the filter plug 103 to a position intermediate the mouth end and the depressions 109.
  • This band 116 is attached to the underlying plug wrap, preferably by an adhesive material 8.
  • a second band extends from a position intermediate the depressions 110 and the line of abutment 107 to a position on the tobacco rod 100 which correspon to the position of the rod end of the tipping ptper 111.
  • This band 117 joins the second segment 105 to the tobacco rod 100, preferably by means of an adhesive material 119.
  • the tipping paper is attached only to the first band 116, preferably by means of an adhesive material 120.
  • the entire tipping paper rotates with the first segment 104, about the longitudinal axis of the cigarette. Air dilution occurs as described for the embodiment of Figs. 9 to 11.
  • the tipping paper 111 extends from a position intermediate the mouth end of the first segment 104 and the depressions 109 to a position on tobacco rod 100 adjacent the line of abutment 107.
  • the tipping paper joins the second segment 105 to the tobacco rod 100, preferably by means of an overlapping band of adhesive 121.
  • the tipping paper is attached only to the tobacco column 100 and the second segment 105.
  • the first segment 104 protrudes from the mouth end of the tipping paper 111 and may be grasped by the smoker and rotated within the tipping paper 111 to vary the degree of registry of the depressions 109 and 110. Air dilution occurs as described for the embodiment of Figs. 9 to 11.
  • the cigarettes of the present invention may be readily produced on conventional cigarette making and tipping apparatus with a minimum of modification. Forming and cutting the cigarette rod and the filter plug to length are done conventionally. Also, bringing the filter plug into axial alignment with the cigarette rod and the overwrapping with tipping paper are accomplished in the same manner as in the manufacture of conventional cigarettes.
  • Figs. 1 to 8 additional simplicity in manufacturing is made possible in the embodiments of Figs. 1 to 8 by simultaneously forming the openings in the tipping paper and the underlying plug wrap. This is accomplished, in one manner, simply by slitting or perforating the tipping paper and underlying plug wrap on each cigarette as it passes through the conventional cigarette making machinery at or near a rolling shoe station.
  • the circumferentially extending cut 5 in the filter plug 4 may be made using a circular knife 22 which is set to penetrate a specified distance into the filter plug, perpendicular to the longitudinal axis of the filter plug.
  • the circular knife and the filter plug are both rotated as shown in Fig. 19, resulting in a circumferentially extending cut which leaves a central core 16 along the longitudinal axis of the filter plug.
  • the row of perforations 9 in the tipping paper in the first embodiment may be made by any conventional means such as laser perforation, electrostatic perforation, or mechanical perforation using points or knives.
  • the tipping paper is fed through a perforation zone where it is exposed to a laser light beam.
  • the power setting and focusing of the laser and the rate of feed of the tipping paper are selected so as to all but part the paper along the "break away" line 9 shown in Fig. 2.
  • the attachment which remains is selected to retain only enough strength to hold the first and second bands of the tipping paper together during assembly.
  • a laser system is employed to make about 39 perforations per cm (about 100 perforations per inch) in the paper.
  • the tipping paper may be applied to the filter plug and tobacco rod employing conventional cigarette making equipment and then the openings 14 and 15 are made through the tipping paper and underlying plug wrap employing either a laser system as shown in Fig. 21 or a mechanical system as shown in Figs. 22, 23 and 24.
  • a laser perforation system which uses a laser 23 to generate a laser beam 25 that is reflected by mirror 26 and collected by lens 27 which focuses the beam.
  • the laser beam 25 is focused to traverse the rotating cigarette and is set to remain on for a time period sufficient to make an opening, preferably a slit of a desired length, through the tipping paper and the underlying plug wrap. Slits one millimeter wide are preferred. If it is desired to establish a line of perforations instead of slits, the laser beam may be pulsed.
  • the openings through the tipping paper and the underlying plug wrap may also be made by mechanical means as shown in Figs. 22, 23 and 24.
  • cigarettes 28 are passed between rotating drums 32 and 33.
  • Drum 32 feeds the cigarettes beneath a fixed plate 31 into contact with a circular knife 29 rotating about shaft 30 and having a V-shaped edge 34 as shown in Fig. 23.
  • the cigarettes 28 are fed between a rotating drum 35 and a fixed plate 36 past semi-circular knife blades 37 which are fixed to the plate 36.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP83305690A 1982-09-30 1983-09-23 Einstellbare Filterzigarette und Verfahren zu ihrer Herstellung Expired EP0105683B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83305690T ATE24659T1 (de) 1982-09-30 1983-09-23 Einstellbare filterzigarette und verfahren zu ihrer herstellung.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US429392 1982-09-30
US06/429,392 US4532943A (en) 1982-09-30 1982-09-30 Adjustable filter cigarette
US439588 1982-11-05
US06/439,588 US4527573A (en) 1982-11-05 1982-11-05 Filter cigarette

Publications (2)

Publication Number Publication Date
EP0105683A1 true EP0105683A1 (de) 1984-04-18
EP0105683B1 EP0105683B1 (de) 1987-01-07

Family

ID=27028162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83305690A Expired EP0105683B1 (de) 1982-09-30 1983-09-23 Einstellbare Filterzigarette und Verfahren zu ihrer Herstellung

Country Status (8)

Country Link
EP (1) EP0105683B1 (de)
JP (1) JPS59501813A (de)
AT (1) ATE24659T1 (de)
AU (1) AU559010B2 (de)
BR (1) BR8307543A (de)
CA (1) CA1212010A (de)
DE (2) DE3368860D1 (de)
WO (1) WO1984001273A1 (de)

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EP0100215A2 (de) * 1982-07-23 1984-02-08 Philip Morris Products Inc. Zigaretten und Verfahren zur Herstellung
EP0167863A1 (de) * 1984-06-20 1986-01-15 H.F. & Ph.F. Reemtsma GmbH & Co Variabel ventilierbare Filterzigarette
US4601298A (en) * 1985-01-14 1986-07-22 Philip Morris Incorporated Filter cigarette
US4646763A (en) * 1985-11-19 1987-03-03 Philip Morris Incorporated Adjustable filter cigarette
EP0212879A1 (de) * 1985-08-01 1987-03-04 Philip Morris Products Inc. Vorrichtung zum Einstellen einer Zigarette mit verstellbaren Raucheigenschaften
US4648413A (en) * 1984-03-07 1987-03-10 Saintsing Barry L Adjustable-delivery cigarette
EP0260789A1 (de) * 1986-08-19 1988-03-23 Fabriques De Tabac Reunies S.A. Filter für Rauchartikel
WO2009022964A1 (en) * 2007-06-11 2009-02-19 Envac Ab A method of managing waste and a system for collecting waste
WO2011039302A1 (en) * 2009-10-02 2011-04-07 British American Tobacco Japan, Ltd A filter comprising an additive material
WO2011121325A1 (en) * 2010-03-29 2011-10-06 British American Tobacco (Investments) Limited Smoking article
ITBO20120584A1 (it) * 2012-10-26 2014-04-27 Gd Spa Macchina per la realizzazione di sigarette a ventilazione regolabile.
ITBO20120585A1 (it) * 2012-10-26 2014-04-27 Gd Spa Macchina per la realizzazione di sigarette a ventilazione regolabile.
CN103945713A (zh) * 2011-09-27 2014-07-23 英美烟草(投资)有限公司 吸烟制品和制造吸烟制品的方法
US9565874B2 (en) 2011-03-14 2017-02-14 British American Tobacco (Investments) Limited Smoking article and method of manufacturing a smoking article
US9730470B2 (en) 2011-05-13 2017-08-15 British American Tobacco (Investments) Limited Filter for a smoking article
US9861123B2 (en) 2012-10-03 2018-01-09 British American Tobacco (Investments) Limited Smoking article and a method of manufacturing a smoking article
US11330837B2 (en) 2014-06-30 2022-05-17 Nicoventures Trading Limited Flow control device

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US6345625B1 (en) 1997-12-06 2002-02-12 Kar Eng Chew Filter for secondary smoke and smoking articles incorporating the same
GB0821803D0 (en) * 2008-12-01 2009-01-07 British American Tobacco Co Smoking article filter
JP2013055887A (ja) * 2010-01-12 2013-03-28 Japan Tobacco Inc シガレットフィルタ及びこれを用いたフィルタシガレット並びにシガレットフィルタの連続体の製造方法
JP2011205914A (ja) * 2010-03-29 2011-10-20 British American Tobacco (Investments) Ltd 喫煙品
GB201223183D0 (en) * 2012-12-21 2013-02-06 British American Tobacco Co A smoking article
US10182594B2 (en) 2013-12-31 2019-01-22 Philip Morris Products S.A. Smoking article with dual additive delivery system
JP6500094B2 (ja) * 2015-04-30 2019-04-10 日本たばこ産業株式会社 喫煙物品
CN106235405B (zh) * 2016-08-31 2023-06-09 云南中烟工业有限责任公司 一种可调节吸阻分布的卷烟滤嘴
CN115039912B (zh) * 2022-06-27 2024-04-09 武汉轻工大学 一种百页式烟草滤嘴
CN115530414B (zh) * 2022-10-12 2024-02-06 湖北中烟工业有限责任公司 一种加热卷烟的烟支及加热卷烟的烟支打孔方法

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GB1058343A (en) * 1964-04-20 1967-02-08 Philip Morris Inc Filter unit for smoking articles
US3327718A (en) * 1963-10-15 1967-06-27 Brown & Williamson Tobacco Tobacco-smoke filters
GB1095848A (en) * 1965-12-21 1967-12-20 American Tobacco Co Improvements in tobacco smoke filter element
US3596665A (en) * 1970-03-04 1971-08-03 Knud Lindgard Tobacco smoke filter
DE1782545A1 (de) * 1967-09-15 1971-09-16 Molins Machine Co Ltd Verfahren und Vorrichtung zum Herstellen von Mundstuecken fuer Zigaretten od.dgl.
US3759268A (en) * 1970-05-25 1973-09-18 J Plourde Selective air dosing means for cigarettes
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US4201234A (en) * 1977-02-21 1980-05-06 Sasmoco, S.A. Filter for smoking article, mainly cigarette
GB2099678A (en) * 1981-06-04 1982-12-15 Glatz Julius Gmbh Mouthpiece for filter cigarettes

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US3359988A (en) * 1965-04-21 1967-12-26 Osborne M Thomson Filter cigarette
US3608561A (en) * 1970-01-15 1971-09-28 H 2 0 Filter Corp The Extender means for attachment of an auxiliary cigarette filter
US3789855A (en) * 1971-06-22 1974-02-05 Liggett & Myers Inc High flavor impact, low smoke yield cigarette mouthpiece

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US3327718A (en) * 1963-10-15 1967-06-27 Brown & Williamson Tobacco Tobacco-smoke filters
GB1058343A (en) * 1964-04-20 1967-02-08 Philip Morris Inc Filter unit for smoking articles
GB1095848A (en) * 1965-12-21 1967-12-20 American Tobacco Co Improvements in tobacco smoke filter element
DE1782545A1 (de) * 1967-09-15 1971-09-16 Molins Machine Co Ltd Verfahren und Vorrichtung zum Herstellen von Mundstuecken fuer Zigaretten od.dgl.
US3596665A (en) * 1970-03-04 1971-08-03 Knud Lindgard Tobacco smoke filter
US3759268A (en) * 1970-05-25 1973-09-18 J Plourde Selective air dosing means for cigarettes
FR2273443A5 (en) * 1973-08-31 1975-12-26 Fahir Abdellah Variable rate tobacco smoke filter - has core with adjustable section smoke passages
US4201234A (en) * 1977-02-21 1980-05-06 Sasmoco, S.A. Filter for smoking article, mainly cigarette
GB2099678A (en) * 1981-06-04 1982-12-15 Glatz Julius Gmbh Mouthpiece for filter cigarettes

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247702A2 (de) * 1982-07-23 1987-12-02 Philip Morris Products Inc. Zigaretten
EP0100215A3 (en) * 1982-07-23 1985-10-09 Philip Morris Incorporated Cigarettes and methods of manufacture
EP0100215A2 (de) * 1982-07-23 1984-02-08 Philip Morris Products Inc. Zigaretten und Verfahren zur Herstellung
EP0247702A3 (en) * 1982-07-23 1988-12-21 Philip Morris Products Inc. Cigarettes
US4648413A (en) * 1984-03-07 1987-03-10 Saintsing Barry L Adjustable-delivery cigarette
EP0167863A1 (de) * 1984-06-20 1986-01-15 H.F. & Ph.F. Reemtsma GmbH & Co Variabel ventilierbare Filterzigarette
US4593707A (en) * 1984-06-20 1986-06-10 H.F. & Ph.F. Reemtsma Gmbh & Co. Variably ventilated filter cigarette
US4601298A (en) * 1985-01-14 1986-07-22 Philip Morris Incorporated Filter cigarette
EP0189980A1 (de) * 1985-01-14 1986-08-06 Philip Morris Products Inc. Filterzigarette
EP0212879A1 (de) * 1985-08-01 1987-03-04 Philip Morris Products Inc. Vorrichtung zum Einstellen einer Zigarette mit verstellbaren Raucheigenschaften
US4646763A (en) * 1985-11-19 1987-03-03 Philip Morris Incorporated Adjustable filter cigarette
EP0223494A1 (de) * 1985-11-19 1987-05-27 Philip Morris Products Inc. Einstellbare Filterzigarette
EP0260789A1 (de) * 1986-08-19 1988-03-23 Fabriques De Tabac Reunies S.A. Filter für Rauchartikel
WO2009022964A1 (en) * 2007-06-11 2009-02-19 Envac Ab A method of managing waste and a system for collecting waste
WO2011039302A1 (en) * 2009-10-02 2011-04-07 British American Tobacco Japan, Ltd A filter comprising an additive material
WO2011121325A1 (en) * 2010-03-29 2011-10-06 British American Tobacco (Investments) Limited Smoking article
US9565874B2 (en) 2011-03-14 2017-02-14 British American Tobacco (Investments) Limited Smoking article and method of manufacturing a smoking article
US9730470B2 (en) 2011-05-13 2017-08-15 British American Tobacco (Investments) Limited Filter for a smoking article
CN103945713A (zh) * 2011-09-27 2014-07-23 英美烟草(投资)有限公司 吸烟制品和制造吸烟制品的方法
CN103945713B (zh) * 2011-09-27 2017-01-18 英美烟草(投资)有限公司 吸烟制品和制造吸烟制品的方法
US9861123B2 (en) 2012-10-03 2018-01-09 British American Tobacco (Investments) Limited Smoking article and a method of manufacturing a smoking article
WO2014064601A3 (en) * 2012-10-26 2014-07-10 G.D S.P.A. Machine for making adjustably ventilated cigarettes
WO2014064613A1 (en) * 2012-10-26 2014-05-01 G.D S.P.A. Machine for making adjustably ventilated cigarettes
ITBO20120585A1 (it) * 2012-10-26 2014-04-27 Gd Spa Macchina per la realizzazione di sigarette a ventilazione regolabile.
ITBO20120584A1 (it) * 2012-10-26 2014-04-27 Gd Spa Macchina per la realizzazione di sigarette a ventilazione regolabile.
US11330837B2 (en) 2014-06-30 2022-05-17 Nicoventures Trading Limited Flow control device

Also Published As

Publication number Publication date
BR8307543A (pt) 1984-08-21
JPS59501813A (ja) 1984-11-01
WO1984001273A1 (en) 1984-04-12
DE105683T1 (de) 1984-10-25
CA1212010A (en) 1986-09-30
ATE24659T1 (de) 1987-01-15
AU1965883A (en) 1984-04-05
EP0105683B1 (de) 1987-01-07
DE3368860D1 (en) 1987-02-12
AU559010B2 (en) 1987-02-19

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