EP0327655A1 - Filtre à fumee, notamment pour pipes à tabac - Google Patents

Filtre à fumee, notamment pour pipes à tabac Download PDF

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Publication number
EP0327655A1
EP0327655A1 EP88101963A EP88101963A EP0327655A1 EP 0327655 A1 EP0327655 A1 EP 0327655A1 EP 88101963 A EP88101963 A EP 88101963A EP 88101963 A EP88101963 A EP 88101963A EP 0327655 A1 EP0327655 A1 EP 0327655A1
Authority
EP
European Patent Office
Prior art keywords
filter according
holes
sleeve
blind hole
filter
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
EP88101963A
Other languages
German (de)
English (en)
Other versions
EP0327655B1 (fr
Inventor
Hans Elstner
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT88101963T priority Critical patent/ATE65165T1/de
Priority to EP88101963A priority patent/EP0327655B1/fr
Priority to DE8888101963T priority patent/DE3863770D1/de
Publication of EP0327655A1 publication Critical patent/EP0327655A1/fr
Application granted granted Critical
Publication of EP0327655B1 publication Critical patent/EP0327655B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F7/00—Mouthpieces for pipes; Mouthpieces for cigar or cigarette holders
    • A24F7/04—Mouthpieces for pipes; Mouthpieces for cigar or cigarette holders with smoke filters
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F1/00—Tobacco pipes
    • A24F1/02—Tobacco pipes with arrangements for cleaning or cooling the smoke
    • A24F1/20—Tobacco pipes with arrangements for cleaning or cooling the smoke with absorbent linings

Definitions

  • the invention relates to a smoke filter, in particular for tobacco pipes, consisting of a cylindrical sleeve made of absorbent material, which is closed at both ends by a plug provided with through holes in the sleeve, and a filter material in the sleeve between the plugs.
  • a smoke filter in particular for tobacco pipes, consisting of a cylindrical sleeve made of absorbent material, which is closed at both ends by a plug provided with through holes in the sleeve, and a filter material in the sleeve between the plugs.
  • Such filters are commercially available for tobacco pipes.
  • the known filters consist of a paper tube of about 8 mm outer diameter and 36 mm in length, into which plugs of about 6 mm in length are inserted, which are provided with axial through holes or recesses, and a filter material filling made of granular activated carbon, which the interior of the Fills the sleeve between the plugs.
  • Such filters are primarily intended for use in tobacco pipes.
  • the tobacco smoke flows through the axial holes in the pipe-head end of the filter into the sleeve and hits the activated carbon particles, where condensate separates out. Due to capillary forces, but also due to flow effects, condensate also reaches the inner wall of the sleeve and is absorbed by it due to the suction properties of the sleeve material.
  • the invention is based on the charge to specify a filter of the type mentioned at the outset, which has better condensate separation properties.
  • the tobacco smoke when smoking, the tobacco smoke falls into the blind hole when it reaches the filter in the first phase. This leads to the first separation of condensate in this area.
  • the tobacco smoke is deflected laterally and directed against the inner wall of the absorbent sleeve surrounding the inlet plug.
  • an annular gap is formed between the blind hole and the sleeve through the plug, and the two concentric walls of the plug delimiting them are provided with mutually aligned through holes, of which the holes formed in the outer peripheral wall preferably have a larger cross section than that in the inner peripheral wall.
  • the holes are as close as possible to the entry end of the sleeve, i.e. close to the opening of the blind hole. It is hereby achieved that the smoke in the holes which are formed in the inner peripheral wall is accelerated, so that it relaxes and cools as it emerges from these holes into the annular gap, a large proportion of the smoke being in alignment with the inner holes opposite outer holes hits the surrounding sleeve and there separates a large part of the moisture-bound condensate. Due to the capillary action of the absorbent sleeve material, the condensate can quickly spread from there in the sleeve material.
  • the smoke which is partially dehumidified in this way, passes through the annular gap into the actual interior of the sleeve, which is filled with filterable substances, for example granular waste coal, or other substances suitable for filtration.
  • filterable substances for example granular waste coal, or other substances suitable for filtration.
  • Such substances can be diatomaceous earth, meerschaum, cellulose and the like.
  • the activated carbon for example, with its hydrophobic property is now confronted with the dehumidified smoke and can perceive the gas phase of the smoke for detoxification in a much better function than is the case with known pipe filters, where the surface of the activated carbon is immediately affected by the moisture content in the Smoke is sealed and can no longer do the job it was intended to do.
  • the annular gap should be sufficiently wide to promote relaxation of the smoke after exiting the holes in the inner peripheral wall, but should be narrow enough when using a granular filter material that no filter medium granules can enter it.
  • the through holes in the outer peripheral wall of the stopper preferably have a cross-section that is about four to ten times larger than the holes in the inner peripheral wall in order to allow as much as possible for the smoke To make sleeve material accessible.
  • a medium with an absorbent property for example cellulose
  • the additional tensile resistance which is inevitably built up as a result must then be compensated for by larger through holes and / or by a larger gap width.
  • the cross section of the annular gap widens slightly towards its open end. Furthermore, it is advantageous for manufacturing reasons if the outer surface of the plugs in the area between the outer through holes and the end of the respective plug facing away from the opening of the blind hole is slightly conical in order to facilitate the insertion of the plugs into the sleeves.
  • Polypropylene is particularly suitable as the material for the plugs, since this material has sufficient heat resistance, which can be influenced by the addition of mineral additives, and is easy to process.
  • a small proportion of a ferromagnetic material, for example iron powder is added to the stopper material. The filters can then be created using magnetic fields align.
  • the through holes in the inner peripheral wall which delimits the blind hole, are sufficiently small to be able to produce the aforementioned nozzle effect. On the other hand, they must not be too small, because otherwise they obstruct the train when smoking.
  • four holes which are arranged on a radial plane at regular angular intervals and each have a diameter of 1 mm, do not result in any significant impairment of the draft of a pipe.
  • the through holes in the outer peripheral wall that clamps on the sleeve should be about 5 to 10 times as large in cross-sectional area as the through holes in the inner peripheral wall. For example, they can have a diameter of 2.5 mm.
  • the aforementioned dimensions relate to a commercially available filter size of the type described at the beginning.
  • sleeve 1 shows a sleeve 1, which consists of an absorbent paper, nonwoven material or other suitable absorbent material and has a cylindrical shape. Plugs 2 are inserted into both ends of the sleeve 1.
  • the sleeve 1 is filled with a suitable filter material, which in particular activated carbon or another, filterable material suitable for filtering smoke. It is important that the sleeve material is well absorbent.
  • Fig. 2 shows in axial section (along the line II-II of Fig. 3) a plug 2 of the filter of Fig. 1.
  • the plug 2 is substantially cylindrical. It has a central, preferably circular blind hole 3, which is preferably slightly conical for manufacturing reasons.
  • the wall surrounding the blind hole 3 is double-walled, consisting of an inner wall 4 and an outer wall 5, which form an annular gap 6 between them, which is open on the side of the plug 2 facing away from the opening of the blind hole 3 and cross-sectionally in the direction of this opening slightly enlarged.
  • the annular gap 6 is closed by an annular end wall 7 which connects the two concentric peripheral walls 4 and 5 to one another.
  • this ring wall is rounded in a toroidal shape in the opening region of the blind hole 3 in order to offer good conductivity for the tobacco smoke flowing into the blind hole 3 from the outside.
  • the inner circumferential wall 4 near the opening region of the blind hole 3, which run approximately in the radial direction in a common radial plane.
  • through holes 9 are also formed, which in the example shown have a diameter that is approximately 2.5 times as large as the diameter of the inner through holes 8.
  • the sleeve 1, in which the plugs 2 are inserted is shown in dashed lines.
  • the outer peripheral wall 5 is slightly conical below the through holes 9, which facilitates the insertion of the plugs into the sleeve 1. It also becomes a Excessive compression of the sleeve material avoided, which could possibly impair the absorbency.
  • the plug 2 has a diameter of about 7.3 mm and a length of about 6 mm.
  • the blind hole 3 has a diameter of approximately 2.8 mm and extends approximately 5 mm deep into the plug 2.
  • the through bores 8 in the inner peripheral wall 4 have a diameter of approximately 1 mm, while the through bores 9 in the outer peripheral wall 5 have a diameter of approximately 2-2.5 mm.
  • the annular gap 6 has a width of approximately 1 mm at its outlet end.
  • the distance of the center of the through bores 8 and 9 from the upper end face of the plug 2, i.e. from the opening plane of the blind hole 3 is approximately 1.8 mm.
  • the rounding radius of the blind hole opening is approximately 2.5 mm.
  • the inside of the annular end wall 7, which covers the annular gap 6, runs obliquely.
  • smoke can therefore be partially deflected under inertia against the outer through holes 9 before it enters the blind hole 3 through the inner through holes 8 and finally leaves the filter.
  • the edges of the through bores 8 and 9 also form flow separation edges which lead to a swirling of the smoke.
  • the plug at the mouth end of the filter thus fulfills a further condensate separating function within the framework of its design features, which in turn is particularly evident in the visible precipitation on the associated area of the sleeve.
  • the sleeve 1 can protrude about 0.5-1 mm from each stopper 2. With this As a measure, this protruding section of the sleeve can also be used to hold condensate, in particular such condensate, which may be deposited on the end face of the plug.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP88101963A 1988-02-10 1988-02-10 Filtre à fumee, notamment pour pipes à tabac Expired - Lifetime EP0327655B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT88101963T ATE65165T1 (de) 1988-02-10 1988-02-10 Rauchfilter, insbesondere fuer tabakpfeifen.
EP88101963A EP0327655B1 (fr) 1988-02-10 1988-02-10 Filtre à fumee, notamment pour pipes à tabac
DE8888101963T DE3863770D1 (de) 1988-02-10 1988-02-10 Rauchfilter, insbesondere fuer tabakpfeifen.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88101963A EP0327655B1 (fr) 1988-02-10 1988-02-10 Filtre à fumee, notamment pour pipes à tabac

Publications (2)

Publication Number Publication Date
EP0327655A1 true EP0327655A1 (fr) 1989-08-16
EP0327655B1 EP0327655B1 (fr) 1991-07-17

Family

ID=8198712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101963A Expired - Lifetime EP0327655B1 (fr) 1988-02-10 1988-02-10 Filtre à fumee, notamment pour pipes à tabac

Country Status (3)

Country Link
EP (1) EP0327655B1 (fr)
AT (1) ATE65165T1 (fr)
DE (1) DE3863770D1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4313847C1 (de) * 1993-04-27 1994-04-21 Hans Elstner Rauchfilter für Tabakpfeifen
EP2253231A1 (fr) * 2009-05-18 2010-11-24 Philip Morris Products S.A. Article à fumer avec élément de restriction de flux amélioré
US7878963B2 (en) 2006-03-28 2011-02-01 Philip Morris Usa Inc. Smoking article with a restrictor
US8235057B2 (en) 2007-03-09 2012-08-07 Philip Morris Usa Inc. Smoking article with open ended filter and restrictor
US8353302B2 (en) 2007-03-09 2013-01-15 Philip Morris Usa Inc. Smoking articles with restrictor and aerosol former
US8353298B2 (en) 2006-07-12 2013-01-15 Philip Morris Usa Inc. Smoking article with impaction filter segment
US8424540B2 (en) 2009-10-09 2013-04-23 Philip Morris Usa Inc. Smoking article with valved restrictor
US8424539B2 (en) 2006-08-08 2013-04-23 Philip Morris Usa Inc. Smoking article with single piece restrictor and chamber
US9138016B2 (en) 2010-03-26 2015-09-22 Philip Morris Usa Inc. Smoking articles with significantly reduced gas vapor phase smoking constituents
USD943153S1 (en) 2019-01-24 2022-02-08 Vestrata Goods Inc. Smoking pipe
US11576430B2 (en) 2019-05-09 2023-02-14 Cory Dennis Larsen Water pipe with lid that covers the bowl and mouthpiece, and related methods of assembly and use

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH173136A (de) * 1933-09-27 1934-11-15 Jur Kruesi Konrad Dr Med Und Gesundheitsrauchfilter.
US3646941A (en) * 1969-09-15 1972-03-07 E A Carey Pipe Co Cigarette and/or cigarette holder
DE2032422A1 (de) * 1970-06-30 1972-03-09 Rauchfilter, insbesondere für Tabakwaren. Artm: RJ. Reynolds Tobacco Co. Winston Salem, N.C. (V.StA.)
US4120310A (en) * 1976-12-10 1978-10-17 Choon Bae Lee Filter for cigarettes, cigars and the like
FR2448306A1 (fr) * 1979-02-06 1980-09-05 Moussavi Houchang Perfectionnements aux dispositifs de filtrage pour fume-cigarette ou analogue
DE8706686U1 (de) * 1987-05-09 1987-07-02 Robert Maderholz, Pfeifenfabrik, 8831 Ettenstatt Filter für eine Pfeife oder für eine Zigarettenspitze

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH173136A (de) * 1933-09-27 1934-11-15 Jur Kruesi Konrad Dr Med Und Gesundheitsrauchfilter.
US3646941A (en) * 1969-09-15 1972-03-07 E A Carey Pipe Co Cigarette and/or cigarette holder
DE2032422A1 (de) * 1970-06-30 1972-03-09 Rauchfilter, insbesondere für Tabakwaren. Artm: RJ. Reynolds Tobacco Co. Winston Salem, N.C. (V.StA.)
US4120310A (en) * 1976-12-10 1978-10-17 Choon Bae Lee Filter for cigarettes, cigars and the like
FR2448306A1 (fr) * 1979-02-06 1980-09-05 Moussavi Houchang Perfectionnements aux dispositifs de filtrage pour fume-cigarette ou analogue
DE8706686U1 (de) * 1987-05-09 1987-07-02 Robert Maderholz, Pfeifenfabrik, 8831 Ettenstatt Filter für eine Pfeife oder für eine Zigarettenspitze

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404090B (de) * 1993-04-27 1998-08-25 Elstner Hans Rauchfilter für tabakpfeifen
DE4313847C1 (de) * 1993-04-27 1994-04-21 Hans Elstner Rauchfilter für Tabakpfeifen
US9060546B2 (en) 2006-03-28 2015-06-23 Philip Morris Usa Inc. Smoking article with a restrictor
US7878963B2 (en) 2006-03-28 2011-02-01 Philip Morris Usa Inc. Smoking article with a restrictor
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
US8235057B2 (en) 2007-03-09 2012-08-07 Philip Morris Usa Inc. Smoking article with open ended filter and restrictor
US8353302B2 (en) 2007-03-09 2013-01-15 Philip Morris Usa Inc. Smoking articles with restrictor and aerosol former
JP2012527221A (ja) * 2009-05-18 2012-11-08 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 改良型流量制限要素を有する喫煙物品
WO2010133334A1 (fr) * 2009-05-18 2010-11-25 Philip Morris Products S.A. Article à fumer comportant un élément amélioré de limitation de flux
EP2253231A1 (fr) * 2009-05-18 2010-11-24 Philip Morris Products S.A. Article à fumer avec élément de restriction de flux amélioré
US8424540B2 (en) 2009-10-09 2013-04-23 Philip Morris Usa Inc. Smoking article with valved restrictor
US9138016B2 (en) 2010-03-26 2015-09-22 Philip Morris Usa Inc. Smoking articles with significantly reduced gas vapor phase smoking constituents
USD943153S1 (en) 2019-01-24 2022-02-08 Vestrata Goods Inc. Smoking pipe
US11576430B2 (en) 2019-05-09 2023-02-14 Cory Dennis Larsen Water pipe with lid that covers the bowl and mouthpiece, and related methods of assembly and use

Also Published As

Publication number Publication date
ATE65165T1 (de) 1991-08-15
EP0327655B1 (fr) 1991-07-17
DE3863770D1 (de) 1991-08-22

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