EP2139355A2 - Restrictor attachment for unfiltered smoking article - Google Patents

Restrictor attachment for unfiltered smoking article

Info

Publication number
EP2139355A2
EP2139355A2 EP08751073A EP08751073A EP2139355A2 EP 2139355 A2 EP2139355 A2 EP 2139355A2 EP 08751073 A EP08751073 A EP 08751073A EP 08751073 A EP08751073 A EP 08751073A EP 2139355 A2 EP2139355 A2 EP 2139355A2
Authority
EP
European Patent Office
Prior art keywords
connector
cavity
transverse partition
smoking article
ventilation
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.)
Withdrawn
Application number
EP08751073A
Other languages
German (de)
English (en)
French (fr)
Inventor
San Li
Michael S. Braunshteyn
Raquel M. Olegario
Rowland W. Dwyer
Richard Jupe
Charles L. Gaworski
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 SA
Original Assignee
Philip Morris Products SA
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
Application filed by Philip Morris Products SA filed Critical Philip Morris Products SA
Publication of EP2139355A2 publication Critical patent/EP2139355A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F13/00—Appliances for smoking cigars or cigarettes
    • A24F13/02—Cigar or cigarette holders
    • A24F13/04—Cigar or cigarette holders with arrangements for cleaning or cooling the smoke
    • A24F13/06—Cigar or cigarette holders with arrangements for cleaning or cooling the smoke with smoke filters
    • 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
    • A24D1/00—Cigars; Cigarettes
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips

Definitions

  • filter cigarettes are typically designed to have the tobacco rod attached to a cellulose acetate filter While filter ventilation affects the particulate phase (PP) and the gas-vapor phase proportionally, cellulose acetate only removes the particulate phase
  • a conventional filter cigarettes with ventilation holes have a ratio of carbon monoxide to tar (FTC) that is between 0 8 and 2 5, depending on the overall cigarette design
  • the ratio of carbon monoxide to tar (“CO to tar ratio”) for unfiltered cigarettes is typically between 0 45 and 0 65
  • a smoking article comprises a tobacco rod, and a connector adapted to attach to the tobacco rod at an upstream end portion of the connector, the connector comprising a cavity, a transverse partition within the cavity, the transverse partition having at least one orifice, and a plurality of ventilation passages disposed along an outer periphery of the connector, the plurality of ventilation passages having an inlet at the upstream end portion of the connector and an outlet in communication with the cavity
  • a kit comprises a connector adapted to receive a tobacco rod at an upstream end portion, the connector comprising a cavity, a transverse partition within the cavity, the transverse partition having at least one orifice, and a plurality of ventilation passages positioned around an outer periphery of the connector, the plurality of ventilation passages having an inlet and an outlet to provide ventilation to the cavity, a mouthpiece insertable into a downstream end portion of said connector, and a tobacco rod insertable into said upstream end portion of said connector
  • a kit comprises a plurality of connectors adapted to receive a tobacco rod at an upstream end portion and wherein the plurality of connectors have different ventilation levels, the plurality of connectors comprising a cavity, a transverse partition within the cavity, the transverse partition having at least one orifice, and a plurality of ventilation passages positioned around an outer periphery of the connector, the plurality of ventilation passages having an inlet and an outlet to provide ventilation to the cavity
  • FIG 1 is a perspective view of a smoking article in the form of an unfiltered cigarette, a connector and a mouthpiece in accordance with an embodiment
  • FIG 2 is a cross sectional view of the smoking article of FIG 1 , which includes an unfiltered cigarette, a connector (or restrictor attachment) and a mouthpiece with a plurality of ventilation passages on an upstream side of a transverse partition within the connector
  • FIG 3 is a cross sectional view of the connector of FIG 2 along the line 3-3
  • FIG 4 is a cross sectional view of the transverse partition of the smoking article of FIG 2 along the line 4-4
  • FIG 5 is a cross sectional view of the transverse partition of the smoking article of FIG 2 along the line 5-5
  • FIG 6 is a cross sectional view of the transverse partition of the smoking article of FIG 2 along the line 6-6
  • FIG 7 is a cross sectional view of the transverse partition of FIG 6 along the line 7-7
  • FIG 8 is a cross sectional view of the transverse partition according to a further embodiment
  • FIG 9 is a cross sectional view of the smoking article of FIG 1 with a plurality of ventilation passages or ventilation holes on an upstream side of a transverse partition
  • FIG 10 is a cross sectional view of the smoking article of FIG 1 with a plurality of ventilation passages or ventilation holes on a downstream side of a transverse partition
  • FIG 1 1 is a cross sectional view of another embodiment of the smoking article of FIG 1 having a porous or screening material on an upstream side of the transverse partition
  • FIG 12 is a cross sectional view of an alternative embodiment wherein the orifice of the transverse partition has a frustoconical shape
  • FIG 13 is a cross sectional view of another embodiment, wherein the restriction connector includes a pair of transverse partitions DETAILED DESCRIPTION
  • FIG 1 shows a smoking article 10 in the form of an unfiltered cigarette (tobacco rod) 20, a connector (or restrictor attachment) 30 and a mouthpiece 40
  • the unfiltered cigarette 20 preferably comprises a generally cylindrical rod 22 ( ⁇ e , tobacco rod) of smoking material 21 (FIG 2), contained in a circumscribing outer wrapper 24
  • the outer wrapper 24 is typically a porous wrapping material or paper wrapper
  • the connector (or restrictor attachment) 30 connects the unfiltered cigarette 20 with different types of mouthpieces 40
  • FIG 2 shows a cross sectional view of the smoking article 10 of FIG 1 with the connector 30 having a plurality of longitudinal ventilation passages 60 in the form of longitudinal ventilation channels, which provide ventilation to the mainstream smoke of the smoking article 10
  • the generally cylindrical rod 22 of smoking material 21 is typically referred to as a "tobacco rod,” and has a lit or upstream end 12 and a downstream end 14
  • the smoking material 21 is preferably a shredded tobacco or tobacco cut filler
  • any suitable smoking material 21 can be used
  • the connector 30 extends over the mouth end 14 of the tobacco rod 22 such that the connector 30 and tobacco rod 22 overlap one another
  • the connector 30 has a generally cylindrical bore forming a cavity 32 therein
  • the inner diameter of the cavity 32 is essentially equal to the outer diameter of the tobacco rod 22, preferably so as to establish a sliding fit therebetween
  • the connector 30 includes an upstream end 16 and a downstream end 18, which are open to permit the passage of air and mainstream smoke therethrough
  • Ventilation to the cavity 32 can be established with a plurality of longitudinal ventilation passages 60, which are preferably disposed along an outer periphery 39 of the connector 30
  • the plurality of ventilation passages 60 can be formed within a wall 37 of the connector 30 or extend into the outer periphery 39 of the connector 30
  • the plurality of ventilation passages 60 have an inlet 62 at an upstream end portion 1 1 of the connector 30 and an outlet 64 in communication with the cavity 32
  • the plurality of ventilation passages 60 are preferably circumferentially spaced about the outer periphery 39 of the connector 30 During smoking the plurality of ventilation passages 60 admits ventilation air to the cavity 32 within the connector 30 wherein the air is allowed to mix with the mainstream smoke before arriving at the mouthpiece 40
  • the ventilation passages 60 in the connector 30 achieves a ventilation level of at least 10%, and more preferably at least 50% to 90%
  • the connector 30 can include a transverse partition 50 that defines at least one orifice (or flow restrictor) 52 (FIG 6) of reduced diameter
  • the transverse partition 50 can be comprised of an annular plate 54 having at least one orifice 52
  • the transverse partition 50 divides the cavity 32 of the connector 30 into a first or upstream cavity 34 and a second or downstream cavity 36 During smoking, the transverse partition 50 introduces a resistance-to-draw (RTD) to the smoking article 10, which is at a level typically expected by the ordinary smoker
  • the transverse partition 50 is preferably positioned an equal distance from each end 16, 18 of the connector 30
  • the resistance to draw (RTD) can be varied and/or changed to establish levels of RTD 1 which are expected by the smoker of the smoking article 10
  • the at least one orifice 52 on the transverse partition 50 provides a desirable resistance to draw (RTD) for the smoking article 10, which is comparable to a conventional filtered cigarette
  • RTD resistance to draw
  • different ventilation levels e g , 10% - 90%
  • FTC tar desired delivery
  • the geometry of the connector 30 can also be adapted so that the chance of fingers blocking or obstructing some or all of the plurality of ventilation passages 60 during a puff is reduced
  • the connector 30 extends over an upstream end 17 of the mouthpiece 40 such that the connector 30 and mouthpiece 40 overlap one another
  • the mouthpiece 40 also has a generally cylindrical shape, and the diameter thereof is essentially equal to the diameter of the tobacco rod 22 and the connector 30 preferably, so as to establish a sliding fit between the mouthpiece 40 and the connector 30
  • the ends 17, 19 (/ e , the upstream end 17 and a downstream or mouth end 19) of the mouthpiece 40 are open to permit the passage of air and mainstream smoke therethrough
  • the ends 17, 19 of the mouthpiece 40 can have different diameters, wherein the downstream or mouth end 19 can have a smaller diameter than the upstream end 17, which results in the tapering of the flow channel (not shown) between the ends 17, 19 of the mouthpiece 40
  • the mouthpiece 40 comprises a molded piece of polymer material or a segment of filtering material 70 (FIG 9) such as a length of cellulose acetate in a paper wrapper
  • the transverse partition 50 preferably provides the desirable resistance to draw to the smoking article 10
  • the mouthpiece 40 does not need to counter the low resistance-to-draw normally associated with smoking articles 10 having high levels of ventilation
  • the mouthpiece 40 is preferably constructed to be of low particulate efficiency
  • the connector 30 is preferably made of a paper product or a biodegradable plastic or other suitable material have degradability properties
  • the mouthpiece 40 is preferably formed of a suitable, self-supporting material, which can be easily molded, such as a synthetic plastic, paper, or other biodegradable material
  • the connector 30 and mouthpiece 40 can also be constructed with or without flavor or any special application materials (such as catalysts, smoke diluents, carbon, etc ), and with or without porous paper plug on the mouth or downstream end 19 for appearance
  • the connector 30 has a generally cylindrical shaped body, and an inner diameter 31 thereof that is essentially equal to the outer diameter of the tobacco rod 22
  • the connector 30 includes an outer surface 33 and an inner surface 35
  • the inner surface 35 is preferably smooth to receive the mouth end or downstream end 14 of the tobacco rod 22 or the upstream end 17 of the mouthpiece 40
  • the mouthpiece 40 is insertable into a downstream end portion 13 of the connector 30 and a tobacco rod 22 is insertable into the upstream end portion
  • the connector 30 includes a plurality of inlets 62, which are preferably positioned on the upstream end 16 of the connector 30
  • the inlets 62 of the ventilation passages 60 are preferably in communication with the upstream end 16 of the connector 30, such that the fingers of the smoker will not block the airflow during smoking
  • the plurality of ventilation passages 60 are located inside the restriction connector 30 and extend longitudinally along a portion of the length of the connector 30 As shown in FIG 4, the plurality of ventilation passages 60 have a generally elliptical cross-section, and are preferably equally spaced around the outer periphery 39 of the connector 30
  • the ventilation passages 60 can have any suitable cross-sectional shape including circular, rectangular, or V-shaped
  • the connector 30 preferably has a smooth cylindrical inner surface 35 at the ends 16, 18 adjacent to the tobacco rod 20 and the mouthpiece 40
  • different ventilation levels can be incorporated into the connector 30, through combinations of channel or groove 60 size and number of ventilation passages 60, to provide a desired smoke delivery level (FTC tar) from the same unfiltered cigarette 20 or single tobacco rod 22
  • the geometry of the connector 30 and the plurality of ventilation passages 60 can be configured so that blockage of the ventilation passages 60 is difficult With such safeguard against blockage, the connector 30 may be made short in length, much akin to the length of a filter of
  • the connector 30 includes an outlet 64 to the cavity 32 of the connector 30
  • the outlet 64 provides air ventilation to the cavity 32, wherein the airflow (/ e , ventilation) is mixed with the mainstream smoke from the tobacco rod 22
  • the outlets 64 can be located within the upstream cavity 34 of the connector 30
  • the outlets 64 are located in the downstream cavity 36 of the connector 30 ( ⁇ e , downstream of the transverse partition 50)
  • the distance between the outlets 64 of the ventilation passages 60 from the mouthpiece 40 is at least 5 mm and more preferably in the range of 5-25 mm
  • the bore ( ⁇ e , inner diameter of ventilation passages) and the length of the ventilation passages 60 can be selected to impart a desired level of pressure drop to the flow of ventilation air
  • the transverse partition 50 comprises a plate 54 having at least one orifice 52
  • the orifice 52 is preferably sized to contribute sufficient pressure drop such the smoking article 10 presents a resistance to draw of at least 40 mm water or greater, and more preferably in the range of 50mm to 80mm water
  • the transverse partition 50 has a diameter of approximately 7 0mm to 8 0mm and more preferably approximately 7 4mm to 7 8mm
  • the transverse partition 50 preferably has at least one or optionally, at least two orifices 52 of a diameter of about 0 2mm to about 0 8mm and more preferably about 0 3mm to 0 6mm and most preferably about 0 4mm each
  • the transverse partition 50 is also preferably integrally formed as a unit with the connector 30
  • the transverse partition 50 is preferably not visible to the smoker
  • the transverse partition 50 can be made of paper, biodegradable plastic, or metal and more preferably made of a paper product or other suitable material having degradability properties
  • the connector 30 in accordance with one embodiment is preferably dimensioned such that the tobacco rod 20 and the mouthpiece 40 fit snugly within the connector 30 and that a desired spaced-apart relation is maintained between the transverse partition 50 and the tobacco rod 20 and/or mouthpiece 40
  • a detent, an annular stop, a circular ring or portion thereof, or other suitable stopping element can be used to maintain the tobacco rod 20 and/or mouthpiece 40 in a desired spaced-apart relation with the transverse partition 50
  • FIG 7 shows a cross sectional view of the transverse partition 50 of FIG 6 along the line 7-7
  • the transverse partition 50 preferably has a thickness 56 of about 0 5 mm to about 1 5 mm and more preferably a thickness 56 of about 1 0 mm
  • FIG 8 shows a cross sectional view of another embodiment of a transverse partition 50 comprising a plate 54 having at least two orifices 52 As shown in FIG 8, the plate 54 has at least two orifices 52, which can be equally spaced around the center (or center portion) of the transverse partition 50 However, it can be appreciated that the plurality of orifices 52 can be spaced in any suitable arrangement The number of orifices 52 as well as their size and position in the plate 54 depend on the desired resistance-to-draw (RTD) or pressure drop, and efficiency for the transverse partition 50
  • RTD resistance-to-draw
  • the transverse partition 50 can be coated with microencapsulated flavorants 58
  • the plate 54 of the transverse partition 50 is coated with microencapsulated flavorants 58
  • the flavorant of the microencapsulated flavorants 58 are released into the mainstream smoke
  • any other suitable material 58' or catalyst may be used to generate flavor upon impaction from the mainstream smoke at or about the partition 50
  • moisture from the mainstream smoke can release the flavorants 58 as a result of expansion, evaporation, distillation, decomposition or other suitable reactions to the moisture within the mainstream smoke
  • the flavorants 58 can be a single component or a multi-flavored component that is suitable for use in cigarette manufacturing such as menthol and vanillin
  • the flavorants 58 can be an aroma of choice, such as peppermint, coconut, roasted, and/or toasted aromas However, almost any flavor oil or composition
  • FIG 9 shows a cross sectional view of another embodiment of the smoking article 10 of FIG 1 with a connector 30 having a transverse partition 50 and a ventilation zone 90 on a downstream side of the transverse partition 50
  • the ventilation zone 90 is preferably comprised of at least one row of holes or perforations 92, each of which extends through (/ e , through the outer surface 33 and the inner surfaces) the connector 30 into the downstream cavity 36 of the connector 30
  • the ventilation zone 90 can be located on an upstream side of the transverse partition 50, such that the at least one row of holes or perforations 92 extend into the upstream cavity 34 of the connector 30
  • the mouthpiece 40 can include a filtering material 70
  • the filter material 70 is preferably cellulose acetate, however, any suitable filtering material 70 can be used
  • the filtering material 70 can be comprised of cellulose acetate with an activated carbon disposed throughout (often referred to as carbon-on-tow) or any other suitable filtering material 70 and/or sorbents and/or other additives such as flavorants
  • FIG 10 shows a cross sectional view of another embodiment of the smoking article 10 of FIG 1 with a cigarette filter 40 having a transverse partition 50 and a plurality of ventilation passages 60, wherein the outlets 64 of the plurality of ventilation passages 60 extend to the downstream cavity 36 of the connector 30
  • outlets 64 may be situated at locations both downstream of the partition 50 and upstream of the partition 50
  • the mouthpiece 40 can be stored separately
  • the mouthpiece 40 can include different flavorants 72 as shown in FIG 10, such as menthol, or functional mediums 74, such as catalysts or smoke diluents, which can be applied and retained or added to the mouthpiece 40
  • the flavorants 72 and/or functional mediums 74 can be individually sealed and separately retained until such time that is placed within the mouthpiece 40 for use
  • FIG 1 1 shows a cross sectional view of another embodiment of the connector 30 of FIG. 1
  • the screening material 80 prevents loose bits of smoking material 21 in the form of loose tobacco filler from blocking the orifices 52 of the transverse partition 50
  • the screening material 80 can be any suitable porous material, which prevents loose tobacco or smoking material 21 , from blocking the at least one orifice 52 of the transverse partition 50
  • FIG 12 shows an alternative embodiment, wherein the transverse partition 50 establishes that the flow restriction may be frustoconical and convergent either into or away from the direction of flow of mainstream smoke passing therethrough
  • the transverse partition 50 includes an orifice 52 having a frustoconical shape 53
  • FIG 13 shows another embodiment, wherein the connector 30 includes a pair of transverse partitions 50
  • the pair of transverse partitions 50 comprises a pair of plates 54 (FIG 6), wherein each plate 54 has at least one orifice 52
  • the restriction connector 30 can eliminate or minimize the usage of cellulose acetate filter components
  • the tobacco rod 20, the connector 30 and the mouthpiece 40 can be made of biodegradable materials
  • the smoking article 10 can also achieve different tar deliveries from the same pack of cigarettes 20 (or tobacco rods 22) using different ventilation connectors 30 having various ventilation capabilities
  • the smoking article 10 as shown also results in cost savings from an easier cigarette making process

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
EP08751073A 2007-03-09 2008-03-10 Restrictor attachment for unfiltered smoking article Withdrawn EP2139355A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US90611607P 2007-03-09 2007-03-09
PCT/IB2008/001382 WO2008110933A2 (en) 2007-03-09 2008-03-10 Restrictor attachment for unfiltered smoking article

Publications (1)

Publication Number Publication Date
EP2139355A2 true EP2139355A2 (en) 2010-01-06

Family

ID=39740414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08751073A Withdrawn EP2139355A2 (en) 2007-03-09 2008-03-10 Restrictor attachment for unfiltered smoking article

Country Status (13)

Country Link
US (1) US20080216850A1 (ja)
EP (1) EP2139355A2 (ja)
JP (1) JP2010520754A (ja)
KR (1) KR20090129401A (ja)
CN (1) CN101594792A (ja)
AR (1) AR065661A1 (ja)
AU (1) AU2008224554A1 (ja)
BR (1) BRPI0808441A2 (ja)
CO (1) CO6220920A2 (ja)
EA (1) EA200970845A1 (ja)
MX (1) MX2009009406A (ja)
TW (1) TW200911143A (ja)
WO (1) WO2008110933A2 (ja)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007110650A1 (en) 2006-03-28 2007-10-04 Philip Morris Products S.A. Smoking article with a restrictor
US20080047571A1 (en) * 2006-07-12 2008-02-28 Philip Morris Usa Inc. Smoking article with plate impactor
US8353298B2 (en) 2006-07-12 2013-01-15 Philip Morris Usa Inc. Smoking article with impaction filter segment
US8424539B2 (en) 2006-08-08 2013-04-23 Philip Morris Usa Inc. Smoking article with single piece restrictor and chamber
TW200900014A (en) 2007-03-09 2009-01-01 Philip Morris Prod Smoking article filter with annular restrictor and downstream ventilation
TW200911138A (en) 2007-03-09 2009-03-16 Philip Morris Prod Smoking articles with restrictor and aerosol former
TW200911141A (en) 2007-03-09 2009-03-16 Philip Morris Prod Super recessed filter cigarette restrictor
US20110247639A1 (en) * 2008-12-03 2011-10-13 Smokequit Aps Cigarette holder for smoke dilution
EP2253231A1 (en) * 2009-05-18 2010-11-24 Philip Morris Products S.A. Smoking article with improved flow restriction element
US8424540B2 (en) 2009-10-09 2013-04-23 Philip Morris Usa Inc. Smoking article with valved restrictor
TW201204272A (en) 2010-03-26 2012-02-01 Philip Morris Prod Smoking articles with significantly reduced gas vapor phase smoking constituents
MD330Z (ro) * 2010-08-17 2011-09-30 Allied Global Tobacco Ltd Ţigaretă fără filtru (variante)
CN102771892A (zh) * 2011-05-11 2012-11-14 许继东 香烟过滤嘴
FR2983039B1 (fr) * 2011-11-25 2014-06-13 Alain Dorchies Dispositif depolluant la fumee de cigarette
EP3270719B1 (en) * 2015-03-17 2020-07-29 Philip Morris Products S.a.s. Tube for a smoking article
AR106163A1 (es) 2015-09-30 2017-12-20 Philip Morris Products Sa Artículo generador de aerosol que tiene un saborizante disperso
JP6973078B2 (ja) * 2015-10-23 2021-11-24 ソニーグループ株式会社 香料保持部材及び香り提供装置
US11470875B2 (en) * 2017-05-17 2022-10-18 Xander Victor Tweedie Gas inhalation devices and methods utilizing electrical discharge
CN107348563A (zh) * 2017-07-24 2017-11-17 湖北中烟工业有限责任公司 一种新型卷烟
CN108308705A (zh) * 2018-03-14 2018-07-24 张学磊 一种吸烟过滤装置
CN113825414A (zh) * 2019-06-05 2021-12-21 菲利普莫里斯生产公司 包括具有细长凸起的气溶胶冷却元件的气溶胶生成制品
CN110881688A (zh) * 2019-10-29 2020-03-17 冷朝阳 气溶胶生成系统及雾化装置和烟弹
WO2021228926A1 (en) * 2020-05-13 2021-11-18 Jt International Sa Flavoring device and a method to flavor an aerosol generating article using such flavoring device

Family Cites Families (102)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511898A (en) * 1950-06-20 Cigarette holder
US2592554A (en) * 1946-08-24 1952-04-15 Gen Cigar Co Resilient tobacco product and method of making the same
US2547119A (en) * 1947-04-08 1951-04-03 James J Henderson Cigarette
US2598680A (en) * 1947-06-13 1952-06-03 Gen Cigar Co Tobacco product and method of manufacture
US2592553A (en) * 1950-01-30 1952-04-15 Gen Cigar Co Tobacco products and processes therefor
US3098492A (en) * 1960-11-25 1963-07-23 Nat Starch Chem Corp Method of making tobacco product
NL282359A (ja) * 1961-09-19
US3260266A (en) * 1961-11-24 1966-07-12 Achilles Corp Cigarette holder
US3255760A (en) * 1962-08-03 1966-06-14 Kimberly Clark Co Tobacco product which produces less tars
CH426594A (de) * 1964-03-10 1966-12-15 Ent Keller Hans Filteranordnung für Rauchwaren
US3323525A (en) * 1964-07-14 1967-06-06 Achilles Corp Cigarette holder
US3318312A (en) * 1964-07-27 1967-05-09 Jr Joseph A Curtis Cigarette assembly
US3234949A (en) * 1964-09-18 1966-02-15 Oswald C Svehaug Cigarette construction
US3389705A (en) * 1966-04-29 1968-06-25 Levavi David Cigarette smoke filter device
US3441028A (en) * 1967-03-27 1969-04-29 Byron T Wall Apparatus for and method of removing condensible compounds from tobacco smoke
US3496945A (en) * 1967-03-31 1970-02-24 Abraham Emil Tomkin Air-admixed cigarette utilizing restrictive-flow orifice
US3457927A (en) * 1968-02-20 1969-07-29 Frank Siragusa Filter
CH493216A (fr) * 1968-07-12 1970-07-15 Delcron Products Inc Dispositif pour fumer
US3504677A (en) * 1969-02-19 1970-04-07 Max J Doppelt Cigarette and/or cigarette holder
US3599646A (en) * 1969-04-30 1971-08-17 American Filtrona Corp Cigarette filter
US3581748A (en) * 1969-07-02 1971-06-01 Int Automated Electronics Corp Cigarette filter
US3646941A (en) * 1969-09-15 1972-03-07 E A Carey Pipe Co Cigarette and/or cigarette holder
US3648712A (en) * 1970-01-29 1972-03-14 Celanese Corp Cigarette filter construction
US3637447A (en) * 1970-06-10 1972-01-25 American Filtrona Corp Method of making filter means by crimping and overwrapping a tubular element
US3738375A (en) * 1971-07-08 1973-06-12 G Doumas Adjustable tobacco smoke filter device
US4016887A (en) * 1973-06-21 1977-04-12 Miroslav Uroshevich Two-stage tobacco smoke filter
US3931824A (en) * 1973-09-10 1976-01-13 Celanese Corporation Smoking materials
US3877470A (en) * 1974-05-02 1975-04-15 Bio Gant Corp Smoker{3 s filter device
US4197863A (en) * 1974-05-02 1980-04-15 Benjamin Clayton Tobacco smoke filter
US3968804A (en) * 1974-05-20 1976-07-13 Amf Incorporated Extruded tobacco sheet
US4022222A (en) * 1975-11-06 1977-05-10 American Filtrona Corporation Tobacco smoke filter
US4038994A (en) * 1975-11-10 1977-08-02 Aikman Leslie N Tobacco smoke filter unit
GB1508084A (en) * 1976-03-17 1978-04-19 British American Tobacco Co Tobacco-smoke filters
JPS52154599A (en) * 1976-06-15 1977-12-22 Japan Tobacco Inc Method for imparting water resistance to molded smoking composition
US4091821A (en) * 1976-11-02 1978-05-30 Scorzo Samuel P Smoking article having an ignition suppression disk
CA1096737A (en) * 1977-03-14 1981-03-03 Jan Van Tilburg Smoke filters
US4158364A (en) * 1977-09-22 1979-06-19 Albert P. Marinko Tobacco smoke filter
US4182349A (en) * 1977-11-04 1980-01-08 Kimberly-Clark Corporation Method of making reconstituted tobacco
US4209026A (en) * 1977-12-02 1980-06-24 Dock Mortimer R Method of securing a filtering mass for tobacco smoke within a housing encompassing said mass
US4256126A (en) * 1978-08-02 1981-03-17 Philip Morris Incorporated Smokable material and its method of preparation
US4256122A (en) * 1979-04-11 1981-03-17 Brown & Williamson Tobacco Corporation Cigarette filter
US4340072A (en) * 1979-11-16 1982-07-20 Imperial Group Limited Smokeable device
CA1156533A (en) * 1980-05-01 1983-11-08 Henry G. Horsewell Smoking articles
US4508525A (en) * 1980-05-27 1985-04-02 American Filtrona Corporation Method and apparatus for producing tobacco smoke filter having improved tar/carbon monoxide ratio
US4460001A (en) * 1980-09-08 1984-07-17 Celanese Corporation Process for preparing compound filter
US4341228A (en) * 1981-01-07 1982-07-27 Philip Morris Incorporated Method for employing tobacco dust in a paper-making type preparation of reconstituted tobacco and the smoking material produced thereby
US4637409A (en) * 1981-05-07 1987-01-20 American Filtrona Corporation Tobacco smoke filter and method and apparatus for making same
US4386618A (en) * 1981-06-29 1983-06-07 Brown & Williamson Tobacco Corporation Cigarette filter
US4984588A (en) * 1981-09-14 1991-01-15 Philip Morris Incorporated Low delivery cigarette
US5392793A (en) * 1981-10-25 1995-02-28 Rothmans International Services Limited Smoking article with means to raise temperature of smoke
US4564030A (en) * 1982-07-16 1986-01-14 Loew's Theatres, Inc. Cigarette filter assembly
US4481955A (en) * 1982-07-29 1984-11-13 Masahiro Terasaki Cigarette holder with tar collecting means
US4649944A (en) * 1982-09-30 1987-03-17 Philip Morris Incorporated Filter cigarette
GB8309451D0 (en) * 1983-04-07 1983-05-11 Gallaher Ltd Buccal and device for smoking rod
US4506683A (en) * 1983-05-09 1985-03-26 Brown & Williamson Tobacco Corporation Ventilated mouthpiece for a smoking article
US4515170A (en) * 1983-05-09 1985-05-07 Brown & Williamson Tobacco Corporation Ventilated mouthpiece for a smoking article
US4559955A (en) * 1983-06-20 1985-12-24 Link Electronics Ltd Controlled air bleed cigarette holder
US4646762A (en) * 1983-12-05 1987-03-03 Brown & Williamson Tobacco Corporation Cigarette having a mouthpiece
US4585015A (en) * 1984-11-16 1986-04-29 Brown & Williamson Tobacco Corporation Cigarette filter
GB8429104D0 (en) * 1984-11-17 1984-12-27 British American Tobacco Co Tobacco smoke filters
GB8518385D0 (en) * 1985-07-20 1985-08-29 British American Tobacco Co Tobacco smoke filters
US4677992A (en) * 1986-02-10 1987-07-07 Bliznak Bedrich V Smoking apparatus having convoluted filtering/heat-reduction passageway
US4732168A (en) * 1986-05-15 1988-03-22 R. J. Reynolds Tobacco Company Smoking article employing heat conductive fingers
DE3624661A1 (de) * 1986-07-22 1988-02-04 Rhodia Ag Ventilierte zigarette
GB8713904D0 (en) * 1987-06-15 1987-07-22 Tabac Fab Reunies Sa Filter for smoking articles
GB8721876D0 (en) * 1987-09-17 1987-10-21 Rothmans Int Tobacco Cigarette filter
US4924886A (en) * 1988-11-21 1990-05-15 Brown & Williamson Tobacco Corporation Smoking article
US5105836A (en) * 1989-09-29 1992-04-21 R. J. Reynolds Tobacco Company Cigarette and smokable filler material therefor
US5129408A (en) * 1990-08-15 1992-07-14 R. J. Reynolds Tobacco Company Cigarette and smokable filler material therefor
US5101839A (en) * 1990-08-15 1992-04-07 R. J. Reynolds Tobacco Company Cigarette and smokable filler material therefor
US5099864A (en) * 1990-01-05 1992-03-31 R. J. Reynolds Tobacco Company Tobacco reconstitution process
GB9008887D0 (en) * 1990-04-20 1990-06-20 Rothmans Benson & Hedges Cigarette smoke filter
US5746230A (en) * 1990-08-24 1998-05-05 Philip Morris Incorporated Concentric smoking filter having discrete tow and web filter media
US5178166A (en) * 1990-09-20 1993-01-12 Philip Morris Incorporated Filter cigarette
US5105838A (en) * 1990-10-23 1992-04-21 R.J. Reynolds Tobacco Company Cigarette
US5203354A (en) * 1991-06-28 1993-04-20 Philip Morris Incorporated Restructured tobacco dryer
US5826592A (en) * 1991-08-08 1998-10-27 Rothmans, Benson & Hedges Inc. Et Al. Control of cigarette smoke chemistry
CA2527939C (en) * 1992-03-25 2008-07-15 Japan Tobacco Inc. Apparatus for manufacturing components for smoking articles
JP3681410B2 (ja) * 1992-04-09 2005-08-10 フィリップ・モーリス・プロダクツ・インコーポレイテッド 再構成タバコシート及びその製造法及び使用法
US5392792A (en) * 1993-04-13 1995-02-28 R. J. Reynolds Tobacco Company Reduced gas phase cigarette
US5435326A (en) * 1993-07-27 1995-07-25 R. J. Reynolds Tobacco Company Controlled delivery smoking article and method
US5533530A (en) * 1994-09-01 1996-07-09 R. J. Reynolds Tobacco Company Tobacco reconstitution process
DE19536505A1 (de) * 1995-09-29 1997-04-10 Biotec Biolog Naturverpack Biologisch abbaubares Filtermaterial und Verfahren zu seiner Herstellung
US5709227A (en) * 1995-12-05 1998-01-20 R. J. Reynolds Tobacco Company Degradable smoking article
US5743251A (en) * 1996-05-15 1998-04-28 Philip Morris Incorporated Aerosol and a method and apparatus for generating an aerosol
DE19722812C2 (de) * 1997-05-30 2003-02-13 Bat Cigarettenfab Gmbh Ultraleicht-Koaxialcigarette mit mehrteiligem Filter
IT1297058B1 (it) * 1997-09-23 1999-08-03 Luparini Alessandro Leonetti Sigaretta dotata di dispositivo inerziale-ipobarico atto al trattenimento del catrame contenuto nel fumo di tabacco e/o
US6345625B1 (en) * 1997-12-06 2002-02-12 Kar Eng Chew Filter for secondary smoke and smoking articles incorporating the same
US6216706B1 (en) * 1999-05-27 2001-04-17 Philip Morris Incorporated Method and apparatus for producing reconstituted tobacco sheets
GB9917820D0 (en) * 1999-07-29 1999-09-29 American Filtrona Corp Filter for a cigarette and filter-tipped cigarette
US6257242B1 (en) * 1999-10-18 2001-07-10 Ioannis C. Stavridis Filter element
US6883516B2 (en) * 2000-04-27 2005-04-26 Chrysalis Technologies Incorporated Method for generating an aerosol with a predetermined and/or substantially monodispersed particle size distribution
PL207339B1 (pl) * 2001-02-22 2010-12-31 Philip Morris Products Papieros zawierający filtr wielosegmentowy i filtr wielosegmentowy artykułu do palenia
US20040025890A1 (en) * 2002-08-08 2004-02-12 Ping-Hung Yen Cigarette filter
US6883523B2 (en) * 2003-02-14 2005-04-26 Philip Morris Usa Inc. Cigarette having porous heat transfer tube
US7240678B2 (en) * 2003-09-30 2007-07-10 R. J. Reynolds Tobacco Company Filtered cigarette incorporating an adsorbent material
FR2873899B1 (fr) * 2004-08-09 2006-10-13 Michel Ange Gimeno Embout filtrant ajustable pour fumee de tabac ou autre matiere a fumer
US7987856B2 (en) * 2005-12-29 2011-08-02 Philip Morris Usa Inc. Smoking article with bypass channel
US8353298B2 (en) * 2006-07-12 2013-01-15 Philip Morris Usa Inc. Smoking article with impaction filter segment
US20080047571A1 (en) * 2006-07-12 2008-02-28 Philip Morris Usa Inc. Smoking article with plate impactor
US8424539B2 (en) * 2006-08-08 2013-04-23 Philip Morris Usa Inc. Smoking article with single piece restrictor and chamber
US8235056B2 (en) * 2006-12-29 2012-08-07 Philip Morris Usa Inc. Smoking article with concentric hollow core in tobacco rod and capsule containing flavorant and aerosol forming agents in the filter system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008110933A2 *

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US20080216850A1 (en) 2008-09-11
EA200970845A1 (ru) 2010-02-26
AR065661A1 (es) 2009-06-24
KR20090129401A (ko) 2009-12-16
JP2010520754A (ja) 2010-06-17
TW200911143A (en) 2009-03-16
WO2008110933A2 (en) 2008-09-18
CO6220920A2 (es) 2010-11-19
CN101594792A (zh) 2009-12-02
AU2008224554A1 (en) 2008-09-18
BRPI0808441A2 (pt) 2014-08-05
MX2009009406A (es) 2009-12-01
WO2008110933A3 (en) 2008-12-18

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