EP2139355A2 - Restrictor attachment for unfiltered smoking article - Google Patents
Restrictor attachment for unfiltered smoking articleInfo
- 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- Withdrawn
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)
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 (es) |
EP (1) | EP2139355A2 (es) |
JP (1) | JP2010520754A (es) |
KR (1) | KR20090129401A (es) |
CN (1) | CN101594792A (es) |
AR (1) | AR065661A1 (es) |
AU (1) | AU2008224554A1 (es) |
BR (1) | BRPI0808441A2 (es) |
CO (1) | CO6220920A2 (es) |
EA (1) | EA200970845A1 (es) |
MX (1) | MX2009009406A (es) |
TW (1) | TW200911143A (es) |
WO (1) | WO2008110933A2 (es) |
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-
2008
- 2008-03-05 TW TW097107639A patent/TW200911143A/zh unknown
- 2008-03-05 US US12/073,449 patent/US20080216850A1/en not_active Abandoned
- 2008-03-07 AR ARP080100968A patent/AR065661A1/es unknown
- 2008-03-10 BR BRPI0808441-6A patent/BRPI0808441A2/pt not_active IP Right Cessation
- 2008-03-10 KR KR1020097016878A patent/KR20090129401A/ko not_active Application Discontinuation
- 2008-03-10 JP JP2009552296A patent/JP2010520754A/ja active Pending
- 2008-03-10 WO PCT/IB2008/001382 patent/WO2008110933A2/en active Application Filing
- 2008-03-10 EP EP08751073A patent/EP2139355A2/en not_active Withdrawn
- 2008-03-10 AU AU2008224554A patent/AU2008224554A1/en not_active Abandoned
- 2008-03-10 MX MX2009009406A patent/MX2009009406A/es not_active Application Discontinuation
- 2008-03-10 EA EA200970845A patent/EA200970845A1/ru unknown
- 2008-03-10 CN CNA200880003339XA patent/CN101594792A/zh active Pending
-
2009
- 2009-10-07 CO CO09111149A patent/CO6220920A2/es not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO2008110933A2 * |
Also Published As
Publication number | Publication date |
---|---|
MX2009009406A (es) | 2009-12-01 |
BRPI0808441A2 (pt) | 2014-08-05 |
TW200911143A (en) | 2009-03-16 |
KR20090129401A (ko) | 2009-12-16 |
EA200970845A1 (ru) | 2010-02-26 |
CO6220920A2 (es) | 2010-11-19 |
JP2010520754A (ja) | 2010-06-17 |
AU2008224554A1 (en) | 2008-09-18 |
WO2008110933A2 (en) | 2008-09-18 |
CN101594792A (zh) | 2009-12-02 |
US20080216850A1 (en) | 2008-09-11 |
WO2008110933A3 (en) | 2008-12-18 |
AR065661A1 (es) | 2009-06-24 |
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