EP1571933A1 - Procede et appareil de remplissage a vitesse elevee de filtres composites de cigarettes - Google Patents
Procede et appareil de remplissage a vitesse elevee de filtres composites de cigarettesInfo
- Publication number
- EP1571933A1 EP1571933A1 EP02788389A EP02788389A EP1571933A1 EP 1571933 A1 EP1571933 A1 EP 1571933A1 EP 02788389 A EP02788389 A EP 02788389A EP 02788389 A EP02788389 A EP 02788389A EP 1571933 A1 EP1571933 A1 EP 1571933A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- particulate matter
- filter
- opening
- filter segments
- strip
- 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
Links
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
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
- A24D3/0212—Applying additives to filter materials
- A24D3/0225—Applying additives to filter materials with solid additives, e.g. incorporation of a granular product
-
- 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
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
- A24D3/0208—Cutting filter materials
Definitions
- This invention relates to a process and apparatus for use in the manufacturing of cigarette filters. More particularly, this invention relates to a process and an apparatus for high-speed filling of particulate matter in discrete cavities defined by adjacent individual filter plugs during the filter assembly operation.
- the fill percentage of the cavities is very important. This is because, as the cigarette is placed into the mouth, it lies in a substantially horizontal plane. Thus, gravity draws the particulate matter down away from the top of the cavity. This creates an unprotected, unfiltered bypass above the particulate matter that does not inhibit the flow of smoke.
- the affect that this bypass has on the filtering capacity of a filter is not yet appreciated but can possibly be disproportionately large compared to the linear proportion of the width of the bypass to the width of the filter element, hi fact, fluid flow principals dictate that fluid prefers to flow along a path of least resistance, thus indicating that the filtering efficiency of the particulate matter may be greatly reduced by the presence of any such pass through portion.
- 5,908,030 includes gravity-fed, wheel-shaped receiving magazines that receive filter segments laid out adjacent to one another in a spaced apart relationship on a paper carrier strip. The loaded strip is then brought into an assembly or guide channel and toward a filling area where the paper is formed on wheels into a receiving trough.
- a vacuum is applied across adjacent filter segments in an effort to promote the filling of the cavity.
- both the spacing of the segments varies and the density of the cellulose acetate filters varies, it is impossible to fill the cavities with any consistency.
- a process of manufacturing composite filter stock includes several f' steps.: j a) depositing fibrous filter segments on a carrying strip in a spaced apart relationship, thus defining cavities between adjacent filter segments; b) feeding the carrying strip with the deposited filter segments along a path of travel into an elongated support chamber with substantially surrounds the circumference of the filter segment-retaining carrier strip and which leaves a narrow fill opening opposite a particulate filling opening of a filling assembly, the narrow fill opening being elongated along the direction of motion of the carrying strip; c) concurrently applying a vacuum or suction adjacent the narrow opening, the suction thus increasing a downward momentum of a gravity feed stream of particulate matter and vacuuming away loose particulate matter; d) concurrently filling the cavities with the particulate matter over a length corresponding to a predetermined path of travel of the carrying strip; and e) applying a sealing portion which encapsulates the filter segments and particulate matter.
- a paper carrier strip or garniture feeds along a conveyor. Along one edge of the carrier strip, the paper is folded back against itself. Fibrous filter segments are then deposited on the carrying strip in spaced apart intervals. The spacing defines cavities between adjacent filter segments.
- the carrier strip with the deposited filter segments is fed along a path of travel into an elongated guide or support chamber that substantially surrounds the circumference of the paper-enveloped segments and which leaves a narrow fill opening opposite a particulate filling opening that is elongated in the direction of motion of the carrying strip. Suction or a vacuum is concurrently applied adjacent the narrow opening, the suction increasing a downward momentum of a gravity feed stream of particulate matter and concurrently vacuuming away loose particulate matter.
- the cavities are concurrently filled with the particulate matter over a length corresponding to a predetermined path of travel of the carrying strip.
- the folded over edge is then unfolded and adhered to seal the fill opening.
- a sealing strip seals the opening, thus encapsulating the filter segments and particulate matter.
- the filter stock is then cut to length, the cutting being registered to create discrete composite filter segments.
- filter cavities may be rapidly and completely filled with particulate matter such as charcoal.
- the density of activated charcoal is controlled through the introduction of an inactive filler material.
- FIG. 1 is a perspective view of a partially assembled filter segment of the invention.
- FIG. 2 is a schematic diagram of an apparatus capable of practicing the invention.
- FIG. 3a is a perspective view of a particulate matter filling assembly of the invention.
- FIG. 3b is a perspective, staggered cross-sectional view of the particulate matter filling assembly, taken substantially along plane A of FIG. 3a.
- FIG. 3c is a front view of the cross-section of FIG. 3b.
- FIG. 3d is a front view of a cross-sectional view of the particulate matter filling assembly, taken along plane B of FIG. 3 a.
- FIG. 3e is a perspective, cross-sectional view of the assembly of FIG. 3a, taken along plane
- FIG. 4 is a flow chart of the process of the invention.
- FIG. 1 An apparatus 10 and a process 12 of manufacturing composite filter stock 14 having cavities 16 (best shown in FIG. 2) filled with particulate matter 20 is provided.
- the cavity 20 is defined between two filter plugs 22, such as are traditionally used in making cellulose acetate filters.
- the particulate matter 20 is preferably activated charcoal 24 but may be any other suitable active or inactive component, including sepiolite, silica gel, and nonactivated carbon. These particulate matter 20 can also include aromatic particulate.
- the apparatus 10 capable of carrying out the process 12 is substantially that as shown in U.S. Pat. No. 4,223,597 (the content of which is incorporated by reference), wherein the process of filling, the filling part 12 of the '597 patent, and the receiving fixturing are improved.
- the apparatus 10 includes a garniture or tool body 26, a strip conveyor 30, a funnel 32, a conveyor 34, a hopper 36 containing solid material 20, a separator chamber 40, and a vacuum power unit
- a vacuum power unit 42 creates a vacuum in the separator chamber 40 by expelling air through exit port 92.
- the cyclone separator and filter 56 filters dust from the air in which particulate material 20 is suspended, having been sucked through the vacuum lines 44 from the filling assembly 64.
- This vacuum action evacuates any particulate that may be loose within the filling assembly 64, via evacuation slits 60 disposed on either side of the opening 62 to the cavities 16.
- Particulate material 20 in the air falls to the bottom of the separation chamber 40 and finds its way into the hopper 36, through the sealed rotary air lock 52.
- the rotary air lock 52 allows the separator chamber 40 and the hopper 36 to have substantially differing pressures in which the hopper's pressure is substantially ambient.
- a feed line 54 provides the hopper with additional solid material 20 as needed.
- the hopper 36 deposits particulate matter 20 on the conveyor belt 34.
- the conveyor belt 34 conveys the solid material 20 from the hopper 36 to an area above the funnel 32 and then, into the funnel 32.
- the funnel-shaped entry 33 of the funnel 32 having a wide opening gradually narrowing along the direction of flow provokes acceleration of the particulate matter 20.
- the garniture 26 and strip conveyor 30 guide and position the strip 50 (shown in FIG. 3a) in the filling assembly 64.
- the funnel 32 directs solid material 20 into the cavities 16.
- the solid material 20 is gravity fed from the conveyer belt 34 with, to a limited extent, vacuum assistance (via evacuation slits 60).
- FIGs. 3a - 3e the filling assembly 64 of the apparatus 10 is shown.
- cross-sections A and B are taken transverse to the line of motion and cross-section C is taken along the line of motion of the filter assembly 14.
- the filling assembly 64 includes a lower garniture 66 and an upper garniture having a left portion 70 and a right portion 72.
- a manifold 74 covers the garniture 26 and provides a mounting for the funnel 32, which has two end caps 76 and 80.
- the manifold 74 defines vacuum passageways including the evaluation slit 60, channels 82 and 84, and exit ports 86 and 90.
- the exit ports 86 and 90 connect to vacuum lines 44. The vacuum helps draw the particles 20 into each cavity 16 while at the same time sucking away particles that fall to either side of the opening 62 and on the exposed portion of the filter segment 22.
- the process 12 includes several steps, hi a first step 100, a paper ribbon or carrier strip 50 feeds along the strip conveyor 30. Along one edge 102 of the carrier strip 50, the paper is folded back against itself, forming a fold 104.
- hi a second step 106 fibrous filter segments 22 are deposited on the carrying strip 50 in spaced apart intervals. The spacing between filter segments 22 defines cavities 16 between adjacent filter segments,
- hi a third step 108 the carrier strip 50 together with the deposited filter segments 22 are fed along a path 110 of travel into the garniture 26 which substantially surrounds the circumference of the segments 22 and which leaves a narrow fill opening 62, generally between 2 and 3 mm in width, opposite a particulate filling opening 112.
- the filling opening 112 is elongated along the direction of motion 110, indicated by arrow Y in FIG. 3e, of the carrying strip 50.
- a fourth step 114 suction or a vacuum is concurrently applied to the evacuation slits 60 on opposite sides adjacent the narrow opening 62, the suction, thus increasing a downward momentum of a gravity fed, vacuum-assisted stream of particulate matter 20 and vacuuming away loose particulate matter 20 (also known as overflow matter). This also helps prevent particles 20 from becoming laminated between an overlap area 116 (on which the fold 104 will adhere) and the fold when the fold 104 is brought back across the narrow opening 62 to seal the opening. Such trapped particulate matter 20 is considered a product defect and is reason to reject a production run.
- the vacuumed away matter is then recycled, being repressurized as it passes through the airlock 52 after which it is deposited in the hopper 36. Thus, such defects are to be avoided.
- a sixth step 120 the cavities 16 are concurrently filled with the particulate matter 20 over a predetermined length L (shown in FIG. 3e) corresponding to the path 110 of travel of the carrying strip 50.
- the folded-over edge 104 is then unfolded and adhered to seal the fill opening 62.
- a sealing strip as described in U.S. Pat. No. 4,225,597 seals the opening 62, thus encapsulating the filter segments 22 and particulate matter 20, creating a filter stock that exits the garniture 26.
- the filter stock is then cut to length, the cutting being registered so as to cut through the filter segments 22, thus creating discrete composite filter segments which may be assembled together with a paper and tobacco to form a cigarette.
- the fill percentage remains directly proportional to the flow rate of particulate matter, up to a fill percentage of 95%.
- the process 12 permits the easy and accurate adjustment of the fill percentage to the demands of a customer.
- the particulate matter 20 is made up of active matter (active charcoal 24) and inactive matter (e.g., an inert filler 25).
- active matter active charcoal 24
- inactive matter e.g., an inert filler 25.
- the granulate shape, whether for active or inactive particulate matter, is very important as this characteristic affects the speed at which it can be accelerated toward the narrow opening of the cavity.
- the amount of charcoal 24 in the filter can be varied and optimized, based on experimentation.
- the affect that the active matter 24 has on the taste and the filtering properties of the cigarette can be controlled as well. Controlling the amount of active charcoal 24 in this manner (by adding filler) is necessary because it is not possible to reduce the size of the cavity 16, due to the variation in length of the opening
- active charcoal 24 the most widely used and available active filler, is only available in a single state. The charcoal 24 cannot be ordered at an economical price in a state that is 50% active, for example. Still further, the percentage of active vs. inactive matter can be precisely controlled by pre-mixing the active and inactive matter prior to placing the mixture in the particulate hopper 40 of the apparatus 10.
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Filtering Materials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2002/005519 WO2004056221A1 (fr) | 2002-12-19 | 2002-12-19 | Procede et appareil de remplissage a vitesse elevee de filtres composites de cigarettes |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1571933A1 true EP1571933A1 (fr) | 2005-09-14 |
EP1571933B1 EP1571933B1 (fr) | 2007-03-21 |
Family
ID=32676685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02788389A Expired - Lifetime EP1571933B1 (fr) | 2002-12-19 | 2002-12-19 | Procede et appareil de remplissage a vitesse elevee de filtres composites de cigarettes |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP1571933B1 (fr) |
JP (1) | JP4203021B2 (fr) |
KR (1) | KR100952181B1 (fr) |
CN (1) | CN100581396C (fr) |
AT (1) | ATE357157T1 (fr) |
AU (1) | AU2002353368A1 (fr) |
BR (1) | BR0215988B1 (fr) |
CA (1) | CA2510186C (fr) |
DE (1) | DE60219083T2 (fr) |
ES (1) | ES2282499T3 (fr) |
MX (1) | MXPA05006632A (fr) |
WO (1) | WO2004056221A1 (fr) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2401929A1 (fr) | 2010-06-30 | 2012-01-04 | Philip Morris Products S.A. | Filtre pour article à fumer |
EP2462822A1 (fr) | 2010-12-13 | 2012-06-13 | Philip Morris Products S.A. | Article à fumer incluant des granules aromatiques |
EP2462821A1 (fr) | 2010-12-10 | 2012-06-13 | Philip Morris Products S.A. | Article à fumer avec une enveloppe transparente gaufrée |
EP2462820A1 (fr) | 2010-12-10 | 2012-06-13 | Philip Morris Products S.A. | Article à fumer disposant d'un emballage extérieur avec une partie de découpe |
EP2583570A1 (fr) | 2011-10-21 | 2013-04-24 | Philip Morris Products S.A. | Article à fumer doté d'une cavité d'extrémité buccale dotée de marques |
WO2013068100A1 (fr) | 2011-11-07 | 2013-05-16 | Philip Morris Products S.A. | Article à fumer présentant un contenu visible |
WO2014012840A2 (fr) | 2012-07-17 | 2014-01-23 | Philip Morris Products S.A. | Article à fumer incluant une enveloppe aromatisée avec motif en relief |
WO2014012841A2 (fr) | 2012-07-17 | 2014-01-23 | Philip Morris Products S.A. | Article à fumer comprenant une enveloppe aromatisée avec partie découpée |
EP3097795B1 (fr) | 2015-05-26 | 2018-09-19 | Hauni Maschinenbau GmbH | Procede et dispositif de fabrication d'un filtre multi-segment |
US10426191B2 (en) | 2013-12-20 | 2019-10-01 | Philip Morris Products S.A. | Smoking article including flavour granules having permeable outer layer |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060196513A1 (en) * | 2004-12-30 | 2006-09-07 | Philip Morris Usa Inc. | Triple hopper max with built-in granulated cavity filling capability |
US8047208B2 (en) * | 2006-05-31 | 2011-11-01 | Philip Morris Usa Inc. | Double action filter assembly wheel with flipping wheel |
US7849889B2 (en) * | 2006-05-31 | 2010-12-14 | Philip Morris Usa Inc. | Applicator wheel for filling cavities with metered amounts of particulate material |
US9204668B2 (en) * | 2007-09-18 | 2015-12-08 | Philip Morris Usa Inc. | Cigarette filter |
DE102009037685A1 (de) * | 2009-08-18 | 2011-03-03 | Hauni Maschinenbau Ag | Vorrichtung und Verfahren zum Bilden eines Filterstrangs der tabakverarbeitenden Industrie |
US20130085052A1 (en) | 2011-09-29 | 2013-04-04 | R. J. Reynolds Tobacco Company | Apparatus for Inserting Microcapsule Objects into a Filter Element of a Smoking Article, and Associated Method |
MX2014014809A (es) * | 2012-08-01 | 2015-02-12 | Celanese Acetate Llc | Metodos de produccion de filtros y barras de filtro que comprenden masas porosas y articulos relacionados a los mismos. |
WO2014150313A1 (fr) * | 2013-03-14 | 2014-09-25 | Celanese Acetate Llc | Appareils, systèmes et procédés associés pour former des masses poreuses organiques pour des filtres à fumée aromatisés |
PL410571A1 (pl) | 2014-12-16 | 2016-06-20 | International Tobacco Machinery Poland Spółka Z Ograniczoną Odpowiedzialnością | Segment wyrobu wielosegmentowego przemysłu tytoniowego, urządzenie do wytwarzania segmentów wyrobów wielosegmentowych, oraz sposób i urządzenie do zestawiania segmentów wałka wielosegmentowego |
DE102015108251A1 (de) | 2015-05-26 | 2016-12-01 | Hauni Maschinenbau Gmbh | Verfahren und Vorrichtung zum Herstellen von Multisegmentfiltern |
EP3669675A1 (fr) * | 2018-12-17 | 2020-06-24 | International Tobacco Machinery Poland Sp. z o.o. | Procédé d'alimentation de perles et unité d'alimentation de perles |
Family Cites Families (15)
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GB1006470A (en) * | 1962-06-26 | 1965-10-06 | Borg Warner | Tobacco smoke filter and method for treating tobacco smoke |
GB1106931A (en) * | 1963-10-04 | 1968-03-20 | Molins Organization Ltd | Improvements in apparatus for producing composite filter plugs |
US3524454A (en) * | 1969-05-29 | 1970-08-18 | John H Sexstone | Multiple filter assembly |
US3807286A (en) * | 1972-10-04 | 1974-04-30 | Brown & Williamson Tobacco | Multiple filter having a loose granule section with perforated inner wrapper |
US4015514A (en) | 1976-01-29 | 1977-04-05 | Philip Morris Incorporated | Apparatus for making cigarette filters |
US4225597A (en) | 1976-10-01 | 1980-09-30 | Schering Corporation | Beclomethasone dipropionate-hexane solvate and aerosols prepared therefrom |
CH613850A5 (fr) | 1976-11-26 | 1979-10-31 | Baumgartner Papiers Sa | |
US4063494A (en) | 1977-02-18 | 1977-12-20 | Liggett Group Inc. | Apparatus for making filter rods for cigarettes |
CH645251A5 (de) * | 1980-04-08 | 1984-09-28 | Baumgartner Papiers Sa | Verfahren zur herstellung einer zigarettenfiltereinheit und einrichtung zur durchfuehrung des verfahrens. |
US4541826A (en) * | 1981-09-25 | 1985-09-17 | Molins Plc | Method and apparatus for making composite filter rods |
US5221247A (en) * | 1992-04-27 | 1993-06-22 | Philip Morris Incorporation | High speed vacuum assisted free flowing material inserter in filter rod manfacture |
US5875824A (en) * | 1996-08-06 | 1999-03-02 | Atwell; Charles G. | Method and apparatus for high speed delivery of particulate material |
CN2308262Y (zh) * | 1997-06-09 | 1999-02-24 | 荆树汉 | 香烟滤嘴 |
JPH11127834A (ja) | 1997-10-31 | 1999-05-18 | Kayoko Sora | コーヒーたばこ及び金属酸化物フィルター |
US6537186B1 (en) * | 2000-07-05 | 2003-03-25 | Baumgartner Papiers S.A. | Process and apparatus for high-speed filling of composite cigarette filters |
-
2002
- 2002-12-19 AT AT02788389T patent/ATE357157T1/de active
- 2002-12-19 EP EP02788389A patent/EP1571933B1/fr not_active Expired - Lifetime
- 2002-12-19 AU AU2002353368A patent/AU2002353368A1/en not_active Abandoned
- 2002-12-19 CN CN02830064A patent/CN100581396C/zh not_active Expired - Lifetime
- 2002-12-19 BR BRPI0215988-0A patent/BR0215988B1/pt active IP Right Grant
- 2002-12-19 JP JP2004561704A patent/JP4203021B2/ja not_active Expired - Lifetime
- 2002-12-19 KR KR1020057011093A patent/KR100952181B1/ko active IP Right Grant
- 2002-12-19 DE DE60219083T patent/DE60219083T2/de not_active Expired - Lifetime
- 2002-12-19 CA CA2510186A patent/CA2510186C/fr not_active Expired - Lifetime
- 2002-12-19 WO PCT/IB2002/005519 patent/WO2004056221A1/fr active IP Right Grant
- 2002-12-19 ES ES02788389T patent/ES2282499T3/es not_active Expired - Lifetime
- 2002-12-19 MX MXPA05006632A patent/MXPA05006632A/es active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO2004056221A1 * |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2401929A1 (fr) | 2010-06-30 | 2012-01-04 | Philip Morris Products S.A. | Filtre pour article à fumer |
WO2012000646A1 (fr) | 2010-06-30 | 2012-01-05 | Philip Morris Products S.A. | Filtre pour article pour fumeur |
WO2012089484A1 (fr) | 2010-12-10 | 2012-07-05 | Philip Morris Products S.A. | Article à fumer ayant une enveloppe transparente gaufrée |
EP2462821A1 (fr) | 2010-12-10 | 2012-06-13 | Philip Morris Products S.A. | Article à fumer avec une enveloppe transparente gaufrée |
EP2462820A1 (fr) | 2010-12-10 | 2012-06-13 | Philip Morris Products S.A. | Article à fumer disposant d'un emballage extérieur avec une partie de découpe |
WO2012076649A1 (fr) | 2010-12-10 | 2012-06-14 | Philip Morris Products S.A. | Article pour fumeurs doté d'une enveloppe extérieure comportant une partie découpée |
WO2012080174A1 (fr) | 2010-12-13 | 2012-06-21 | Philip Morris Products S.A. | Article pour fumeur comprenant des granulés d'arôme |
EP2462822A1 (fr) | 2010-12-13 | 2012-06-13 | Philip Morris Products S.A. | Article à fumer incluant des granules aromatiques |
EP2583570A1 (fr) | 2011-10-21 | 2013-04-24 | Philip Morris Products S.A. | Article à fumer doté d'une cavité d'extrémité buccale dotée de marques |
WO2013057282A1 (fr) | 2011-10-21 | 2013-04-25 | Philip Morris Products S.A. | Article à fumer doté d'une cavité d'embouchure comportant des éléments d'impression |
WO2013068100A1 (fr) | 2011-11-07 | 2013-05-16 | Philip Morris Products S.A. | Article à fumer présentant un contenu visible |
WO2014012840A2 (fr) | 2012-07-17 | 2014-01-23 | Philip Morris Products S.A. | Article à fumer incluant une enveloppe aromatisée avec motif en relief |
WO2014012841A2 (fr) | 2012-07-17 | 2014-01-23 | Philip Morris Products S.A. | Article à fumer comprenant une enveloppe aromatisée avec partie découpée |
US10426191B2 (en) | 2013-12-20 | 2019-10-01 | Philip Morris Products S.A. | Smoking article including flavour granules having permeable outer layer |
EP3097795B1 (fr) | 2015-05-26 | 2018-09-19 | Hauni Maschinenbau GmbH | Procede et dispositif de fabrication d'un filtre multi-segment |
Also Published As
Publication number | Publication date |
---|---|
DE60219083T2 (de) | 2007-12-13 |
CN100581396C (zh) | 2010-01-20 |
DE60219083D1 (de) | 2007-05-03 |
CN1731939A (zh) | 2006-02-08 |
BR0215988A (pt) | 2005-11-01 |
JP2006510378A (ja) | 2006-03-30 |
CA2510186A1 (fr) | 2004-07-08 |
BR0215988B1 (pt) | 2012-01-24 |
JP4203021B2 (ja) | 2008-12-24 |
ATE357157T1 (de) | 2007-04-15 |
MXPA05006632A (es) | 2005-12-14 |
EP1571933B1 (fr) | 2007-03-21 |
KR20050090127A (ko) | 2005-09-12 |
WO2004056221A1 (fr) | 2004-07-08 |
CA2510186C (fr) | 2011-02-15 |
KR100952181B1 (ko) | 2010-04-09 |
AU2002353368A1 (en) | 2004-07-14 |
ES2282499T3 (es) | 2007-10-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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