EP0102247B1 - Embout pour un article allongé à fumer - Google Patents

Embout pour un article allongé à fumer Download PDF

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Publication number
EP0102247B1
EP0102247B1 EP83304993A EP83304993A EP0102247B1 EP 0102247 B1 EP0102247 B1 EP 0102247B1 EP 83304993 A EP83304993 A EP 83304993A EP 83304993 A EP83304993 A EP 83304993A EP 0102247 B1 EP0102247 B1 EP 0102247B1
Authority
EP
European Patent Office
Prior art keywords
tube
apertures
assembly
tipping
sections
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.)
Expired
Application number
EP83304993A
Other languages
German (de)
English (en)
Other versions
EP0102247A1 (fr
Inventor
Christopher Ralph Bale
Beresford Roy Gill
David Wyn Bassett
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.)
Imperial Tobacco Ltd
Original Assignee
Imperial Tobacco Ltd Great Britain
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 Imperial Tobacco Ltd Great Britain filed Critical Imperial Tobacco Ltd Great Britain
Publication of EP0102247A1 publication Critical patent/EP0102247A1/fr
Application granted granted Critical
Publication of EP0102247B1 publication Critical patent/EP0102247B1/fr
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
    • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution

Definitions

  • This invention relates to a tipping assembly for an elongate smoking article, such as a cigarette.
  • the present invention concerns a tipping assembly for an elongate smoking article, the assembly comprising an open-ended tube provided with a plurality of apertures spaced round the circumference of the tube, thereby defining two sections of the tube and providing communication between the inside and the outside of the tube, and a tipping wrapper surrounding the tube, a portion of the tipping wrapper overlying the apertures being adapted to permit gas flow both through the apertures and said portion and to offer greater resistance to the gas flow than is provided by the apertures alone.
  • GB-A-2088191 discloses a tipping assembly of this general type in which the tube is formed of a sheet of non-porous wrapping material, and the apertures are small openings in the sheet.
  • the tipping assembly of the present invention is characterised in that the two sections of the tube are axially spaced apart from each other and there is provided a plurality of means to hold the sections fixed relative to each other each of the plurality of spacing means defining the separation between one of the plurality of apertures and its adjacent neighbour.
  • a first embodiment of the invention comprising a cylindrical tobacco rod 110 enwrapped in cigarette paper 115, and a tipping assembly indicated generally at 100.
  • the tipping assembly comprises a cellulose acetate filter rod 200 of conventional construction and in abutment therewith an open-ended polyethylene tube 130 wrapped in tipping paper 120 by means of which the tube and filter rod are attached to the tobacco rod.
  • the tube 130 is divided into two tubular sections 131 and 132 by three apertures 160 extending round the circumference of the tube 130 and separated by three narrow integral webs 161 of the material of the tubing which hold the two sections 131, 132 in a fixed relationship apart from each other.
  • the tipping paper 120 is provided with a circumferential series of perforations 170 overlying the apertures 160.
  • the perforations 170 are 0.8 mm diameter or less, considerably smaller than the width of the apertures 160, which is about 2 mm.
  • a second embodiment comprising a tobacco rod and tipping assembly similar to that of Figs. 3, 4 and 5, identical features retaining the same numbering, and further provided with a plug 140 of cellulose acetate filter material at the mouth end of the tube.
  • the tube 130 is substantially shorter than the tube of Figs. 2 and 3.
  • FIGs. 6 and 7 there is shown a third embodiment similar to that of Figs. 1 and 2 except that the separated sections 131, 132 of the tube 130 are held in a fixed relationship to each other not by integral webs but by rectangular vanes 180 of polyethylene extending longitudinally within the tube 130 from one section to the other and radially outwards from the longitudinal axis of the tube to a distance at least equal to the internal radius of the tube.
  • any of the previously described embodiments may be modified by the incorporation of a sheet of porous plug wrap material (of typical porosity 200-1600 Filtrona K units) between the tube and the tipping paper.
  • the tube 130 may be divided into its sections 131,132 by a number of apertures 160 other than three together with the respective number of webs 161 in order to suit specific smoking requirements.
  • the tube may be filled partly or wholly with highly porous material such as cellulose acetate in the sections 131 or 132.
  • the filter rod 200 may at least in part occupy section 131.
  • the tipping assembly of the invention shows that it is possible to achieve low tar yields with high nicotine, low carbon monoxide, and acceptable smoking panel ratings, compared with conventional filters which utilise high levels both of filtration and dilution.
  • Perforations in the tipping wrapper may be provided by a large number of small perforations or by a small number of relatively large perforations.
  • the tipping wrapper may alternatively be adapted to permit gas flow through the apertures in the tube by providing a tipping wrapper having a very high porosity rather than by providing perforations.
  • the tube may be made of impervious material other than polyethylene, such as cardboard.
  • the smoke nicotine level can be high, and the carbon monoxide content and the CO/PM (carbon mono- xide/particulate material) ratio of the smoke can be remarkably low.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Claims (6)

1. Embout (100) pour un article allongé à fumer, l'embout comprenant un tube à extrémité ouverte (130) pourvu d'un certain nombre d'ouvertures (160) espacées sur la circonférence du tube, pour ainsi définir deux sections (131, 132) de tube et permettre la communication entre l'intérieur et l'extérieur du tube et une bande de recouvrement d'embout (120) entourant le tube, une partie de la bande de recouvrement d'embout (120) recouvrant les ouvertures (160) étant adaptée (170) à permettre l'écoulement de gaz à la fois à travers les ouvertures (160) et ladite partie et à offrir une plus grande résistance à l'écoulement du gaz que celle offerte par les ouvertures (160) seules, caractérisé en ce que les deux sections (131, 132) du tube sont axialement espacées l'une de l'autre et en ce qu'un certain nombre de moyens d'espacement (161; 180) sont prévus pour maintenir les sections fixes l'une relativement à l'autre, chacun des moyens d'espacement définissant la séparation entre l'une des diverses ouvertures (160) et sa voisine adjacente.
2. Embout selon la revendication 1 où le moyen de maintien est formé d'un certain nombre de nervures (161) du matériau du tube faisant corps avec et orientées parallèlement à l'axe du tube, la largeur de chaque nervures (161) étant sensiblement plus petite que celle d'une ouverture adjacente (160).
3. Ensemble selon la revendication 2 où les ouvertures (160) sont formées de fentes dont les axes majeurs sont parallèles à l'axe longitudinale du tube (130).
4. Ensemble selon la revendication 1 où le moyen de maintien est formé d'un certain nombre d'ailettes rectangulaires (180) s'étendant longitudinalement dans le tube (130) d'une section (131) à l'autre (132) et radialement vers l'extérieur de l'axe longitudinal du tube sur une distance au moins égale au rayon interne du tube (130) pour ainsi définir les ouvertures (160).
5. Ensemble selon l'une quelconque des revendications précédentes où ladite portion de la bande de recouvrement d'embout (120) est adaptée à permettre l'écoulement de gaz à travers elle au moyen de perforations (170), les perforations étant sensiblement plus petites que les ouvertures (160).
6. Ensemble selon l'une quelconque des revendications précédentes où on prévoit une feuille d'un matériau d'enveloppement de tampon poreux entre le tube (130) et la bande d'enveloppement d'embout (120) au moins dans la région recouvrant lesdites ouvertures (160).
EP83304993A 1982-09-01 1983-08-30 Embout pour un article allongé à fumer Expired EP0102247B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8224883 1982-09-01
GB8224883 1982-09-01
GB8224891 1982-09-01
GB8224891 1982-09-01

Publications (2)

Publication Number Publication Date
EP0102247A1 EP0102247A1 (fr) 1984-03-07
EP0102247B1 true EP0102247B1 (fr) 1987-10-28

Family

ID=26283701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83304993A Expired EP0102247B1 (fr) 1982-09-01 1983-08-30 Embout pour un article allongé à fumer

Country Status (3)

Country Link
EP (1) EP0102247B1 (fr)
DE (1) DE3374164D1 (fr)
GB (1) GB2126073B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD805686S1 (en) 2014-10-02 2017-12-19 Digirettes, Inc. Vaping device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625593A1 (de) * 1986-07-29 1988-02-04 Bat Cigarettenfab Gmbh Filtercigarette
GB201116565D0 (en) * 2011-09-26 2011-11-09 British American Tobacco Co Smoking article and method of manufacturing a smoking article

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB989479A (en) * 1964-03-07 1965-04-22 Imp Tobacco Co Ltd Improvements in cigarettes
US3577995A (en) * 1970-03-31 1971-05-11 Reynolds Tobacco Co R Filter
US3695274A (en) * 1970-11-30 1972-10-03 Brown & Williamson Tobacco Piston type cigarette filter
US4034765A (en) * 1975-10-30 1977-07-12 Liggett & Myers Incorporated Tobacco smoke filter
US4256122A (en) * 1979-04-11 1981-03-17 Brown & Williamson Tobacco Corporation Cigarette filter
TR21005A (tr) * 1980-11-21 1983-05-01 Brown & Williamson Tobacco Duman gecirmez bir sargi ile ihata edilmis mesamath bir filtre cubugunu ihtiva eden bir sigara filtresi
US4343319A (en) * 1980-11-28 1982-08-10 Brown & Williamson Tobacco Corporation Cigarette filter
US4338956A (en) * 1980-12-05 1982-07-13 Brown & Williamson Tobacco Corporation Cigarette filter
DE3048905A1 (de) * 1980-12-23 1982-07-22 B.A.T. Cigaretten-Fabriken Gmbh, 2000 Hamburg Filter fuer cigaretten
US4498488A (en) * 1981-03-12 1985-02-12 Brown & Williamson Tobacco Corporation Cigarette filter
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
GB2101869A (en) * 1981-07-06 1983-01-26 Filtrona Ltd Filtering means
AU559296B2 (en) * 1981-07-06 1987-03-05 Cigarette Components Limited Filter device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD805686S1 (en) 2014-10-02 2017-12-19 Digirettes, Inc. Vaping device
USD805687S1 (en) 2014-10-02 2017-12-19 Digirettes, Inc. Vaping device tank

Also Published As

Publication number Publication date
GB2126073A (en) 1984-03-21
EP0102247A1 (fr) 1984-03-07
GB2126073B (en) 1986-06-18
DE3374164D1 (en) 1987-12-03
GB8323244D0 (en) 1983-09-28

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