EP0025327B1 - Embout pour cigarette - Google Patents

Embout pour cigarette Download PDF

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Publication number
EP0025327B1
EP0025327B1 EP80303027A EP80303027A EP0025327B1 EP 0025327 B1 EP0025327 B1 EP 0025327B1 EP 80303027 A EP80303027 A EP 80303027A EP 80303027 A EP80303027 A EP 80303027A EP 0025327 B1 EP0025327 B1 EP 0025327B1
Authority
EP
European Patent Office
Prior art keywords
filter
mouthpiece
orifice
point
longitudinal
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
EP80303027A
Other languages
German (de)
English (en)
Other versions
EP0025327A1 (fr
Inventor
Rowland William Dwyer, Jr.
Mable Louise Fleming
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 USA 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
Application filed by Philip Morris USA Inc filed Critical Philip Morris USA Inc
Publication of EP0025327A1 publication Critical patent/EP0025327A1/fr
Application granted granted Critical
Publication of EP0025327B1 publication Critical patent/EP0025327B1/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 OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/045—Tobacco smoke filters characterised by their shape or structure with smoke acceleration means, e.g. impact-filters

Definitions

  • Examples of a filter mouthpiece which provides for partial localization of exit smoke are certain embodiments disclosed in US-A-4,016,887, US-A-3,768,489 and US-A-3,685,523.
  • US-A-3,062,219 discloses an offset opening to partially localize the exit smoke at one side of the filter tip.
  • the invention as claimed in claim 1 is a mouthpiece or exit tip baffle for a filtered cigarette or cigarette holder having a filter, which serves to focus or collimate the exit smoke to a narrow pattern. This is done not merely with a central opening, but with a 3- dimensional funneling mouthpiece. Such a pattern improves the subjective perception of cigarettes which have a low "tar" delivery as a result of filtration, usually with air dilution.
  • the smoke from cigarette rod 11 passes through a filter 12 and is collimated by plastic mouthpiece 13 to exit through orifice 14, diameter 0,44 cm, in a stream which is shown schematically as 15 based on observations made during smoking by an automated smoking machine by using high speed cinematography.
  • Figure 2 shows a similar mouthpiece 16 having a very much smaller orifice 17, 0.16 cm in diameter, which produces a smoke pattern 18 converging to a focus and diverging thereafter. r.
  • Figure 3 illustrates the exit pattern 19 diverging directly from an unmodified filter of a conventional 0.78 cm diameter.
  • the pattern 20 is kept nearly constant by hollow mouthpiece 22.
  • Figure 5 shows a filter cigarette equipped with an alternative mouthpiece 23 having cone- shaped baffle 24 (supported in its central location by fins or prongs not shown) and giving an exit smoke pattern 21 which is likewise cone- shaped.
  • the present invention employs a different approach; a reinforcement of the impact perceived by the smoker through addition of a mouthpiece baffle having such a configuration that the issuing smoke is confined to a narrow stream.
  • This configuration is not simply an orifice alone, but an orifice as a termination of a funnel-shaped mouthpiece shaped to focus the smoke stream or cause it to converge.
  • the convergence of the smoke may be toward a central point or into another defined exit pattern such as a cone.
  • the result is enhancement of the subjective effect of the smoke which may have been attenuated by dilution or filtration.
  • the effect is particularly noticeable with a centralized delivery ( Figures 1 and 2).

Landscapes

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

Claims (3)

1. Cigarette à filtre, comprenant une tige de tabac (11), un filtre (12) à fumée de tabac fixé à une extrémité de la tige et une embouchure cylindrique (13) fixée à l'extrémité extérieure du filtre (12) et traversée par un conduit de fumée longitudinal, caractérisée en ce que l'embouchure est constituée sous forme d'un corps solide (13, 16, 23) imperméable à l'air, dans lequel le conduit de fumée longitudinal présente une section qui diminue de façon continue depuis une extrémité d'entrée dont le section a la même aire que le corps de filtre (12) et s'applique contre lui, jusqu'à un point situé approximativement au milieu de la longueur du conduit de fumée et qui ne présente au-delà de 'ce point au moins pas de nouvelle diminution jusqu'à un orifice (14, 17) situé à l'extrémité de sortie et dont l'aire est plus petite que celle de la dite entrée.
2. Cigarette selon la revendication 1, caractérisée en ce que le canal de fumée longitudinal présente une section dont l'aire augmente depuis le dit point jusqu'au dit orifice, ce dernier formant une ouverture circulaire (14) centrée sur l'axe longitudinal du filtre (12).
3. Cigarette selon la revendication 1, caractérisée en ce que le dit orifice est une ouverture annulaire centrée sur l'axe longi-tudinal du filtre (12), le conduit de fumée longitudinal étant défini depuis l'orifice jusqu'au dit point milieu par un cône (24) tronqué dont le sommet se trouve au dit point.
EP80303027A 1979-09-07 1980-08-29 Embout pour cigarette Expired EP0025327B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7339479A 1979-09-07 1979-09-07
US73394 1979-09-07

Publications (2)

Publication Number Publication Date
EP0025327A1 EP0025327A1 (fr) 1981-03-18
EP0025327B1 true EP0025327B1 (fr) 1984-07-18

Family

ID=22113442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80303027A Expired EP0025327B1 (fr) 1979-09-07 1980-08-29 Embout pour cigarette

Country Status (2)

Country Link
EP (1) EP0025327B1 (fr)
DE (1) DE3068598D1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2115679B (en) * 1982-02-02 1985-09-11 Brown & Williamson Tobacco Corp Tobacco smoke filters
US4457319A (en) * 1982-06-22 1984-07-03 Brown & Williamson Tobacco Corporation Cigarette filter
US4438776A (en) * 1982-06-24 1984-03-27 Brown & Williamson Tobacco Corporation Cigarette filter
FI70779C (fi) * 1982-11-13 1986-10-27 Bat Cigarettenfab Gmbh Filtermunstycke foer en roekprodukt
US4517996A (en) * 1983-03-25 1985-05-21 Brown & Williamson Tobacco Corporation Ventilated filter and smoke dispersing mouthpiece
US4515170A (en) * 1983-05-09 1985-05-07 Brown & Williamson Tobacco Corporation Ventilated mouthpiece for a smoking article

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1945207A (en) * 1933-05-31 1934-01-30 Paul G Thomas Cigarette
DE1110070B (de) * 1958-02-28 1961-06-29 Alfons Geppert Filtriervorrichtung fuer Tabakrauch
DE1975669U (de) * 1967-06-10 1967-12-21 Erich W Beyermann Filter-einsatz fuer zigaretten.
US3789855A (en) * 1971-06-22 1974-02-05 Liggett & Myers Inc High flavor impact, low smoke yield cigarette mouthpiece
US4016887A (en) * 1973-06-21 1977-04-12 Miroslav Uroshevich Two-stage tobacco smoke filter

Also Published As

Publication number Publication date
EP0025327A1 (fr) 1981-03-18
DE3068598D1 (en) 1984-08-23

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