EP3473112B1 - Crimpeinheit - Google Patents

Crimpeinheit Download PDF

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Publication number
EP3473112B1
EP3473112B1 EP18200720.3A EP18200720A EP3473112B1 EP 3473112 B1 EP3473112 B1 EP 3473112B1 EP 18200720 A EP18200720 A EP 18200720A EP 3473112 B1 EP3473112 B1 EP 3473112B1
Authority
EP
European Patent Office
Prior art keywords
web
crimping
shaping member
outside surface
shaping
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.)
Active
Application number
EP18200720.3A
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English (en)
French (fr)
Other versions
EP3473112A1 (de
Inventor
Nicola Baldanza
Massimo Sartoni
Luca Federici
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.)
GD SpA
Original Assignee
GD SpA
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.)
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Priority to PL18200720T priority Critical patent/PL3473112T3/pl
Publication of EP3473112A1 publication Critical patent/EP3473112A1/de
Application granted granted Critical
Publication of EP3473112B1 publication Critical patent/EP3473112B1/de
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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/01—Making cigarettes for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14—Machines of the continuous-rod type
    • A24C5/18—Forming the rod
    • 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
    • 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
    • A24D3/0229—Filter rod forming processes

Definitions

  • This invention relates to a machine for crimping a web of material used to make tobacco industry products.
  • this web can be used in the tobacco industry to make traditional filter cigarettes, that is, cigarettes which can be smoked by burning the end of the cigarette opposite the filter, or electronic cigarettes such as, for example: heat not burn, electronic-cig, mixed electronic-cig and tobacco.
  • crimping systems as described in documents WO 2016/071267 A1 , US 2164702 , WO 2016/097016 , CA 2956345 and WO 2015/197674 , that are designed to create corrugations on the web which can subsequently be compacted to create a longitudinal stream containing the crimped web; it was found, however, that the articles made according to this solution are not uniformly compacted but tend to become loose.
  • the technical purpose which forms the basis of the present invention is to propose a crimping unit which overcomes at least some of the above mentioned disadvantages of the prior art. More specifically, this invention has for an aim to provide a crimping unit capable of optimizing the process of crimping a web of material used to make tobacco industry products in order to improve the quality of the end product made using the web.
  • the technical purpose indicated and the aims specified are substantially achieved by a crimping unit comprising the technical features described in one or more of the accompanying claims.
  • This invention discloses a crimping unit for crimping a web of material used to make tobacco industry products, comprising:
  • the web of material used to make tobacco industry products can be subjected to a pre-shaping process which ensures that the web is correctly transferred to the next shaping step, while also improving the structure of the easy folding lines.
  • the web can be gathered more easily during the steps of gathering, conveying and forming, so as to create a high-quality continuous stream in which the web is optimally compacted to make an end product of high quality and strength
  • the pre-shaping member has the curved shape on an outside surface of it designed to come into contact with the web, the outside surface having a cross-sectional shape transverse to the feed direction of the web which is curved and shaped to give the web a shape substantially like that of a U, and which also has, along the outside surface, a succession of protrusions and recesses adapted to engage the web at respective longitudinal easy folding lines in such a way as to pre-fold the web along the longitudinal easy folding lines.
  • unit 1 denotes a crimping unit in its entirety, hereinafter referred to simply as unit 1.
  • the unit 1 comprises a feed station 10 configured to feed to the crimping unit 1 a web of material 100 used to make tobacco industry products, a crimping station 20 equipped with crimping rollers 21, 22 and a gathering station 30 located downstream of the crimping station 20.
  • the unit 1 comprises feed means 11 for feeding the web 100 of material, for example of tobacco based material, filter paper or PLA, used to make tobacco industry products.
  • material for example of tobacco based material, filter paper or PLA, used to make tobacco industry products.
  • the web 100 is adapted to be unwound along a longitudinal feed direction, indicated by the arrow "A" in Figure 1 .
  • the machine 1 preferably also comprises one or more systems for adjusting the tension of the web 100 (for example, an unwinding feedback sensor) and/or one or more systems for centring the web 100.
  • one or more systems for adjusting the tension of the web 100 for example, an unwinding feedback sensor
  • one or more systems for centring the web 100 for example, centring the web 100.
  • the feed means 11 are equipped with tensioning devices 12 for tensioning the web 100, embodied for example by dancer rollers.
  • the feed station 10 comprises at least one infeed diverting roller 13 mounted on a movable supporting device 13a.
  • the movable supporting device 13a is configured to move the infeed diverting roller 13 along a predetermined path "B" in such a way as to vary the infeed position of the web in the crimping station 20, specifically varying the orientation of the web being fed to the crimping rollers 21, 22.
  • the path “B” is preferably straight and the movable supporting device 13a comprises a carriage which mounts the diverting roller 13 and which is movable along a respective straight guide, for example disposed vertically in such a way as to define a substantially vertical path "B".
  • the presence of the at least one diverting roller 13 thus makes it possible, also in use, to modulate the angular portion of the crimping rollers 21, 22 intercepted by the web 100, in particular when entering the crimping station 20, thus helping to lengthen/shorten the stretch of path which the web 100 travels in contact with the surface of the crimping rollers 21, 22.
  • the crimping station 20 comprises a first crimping roller 21 and a second crimping roller 22 operatively coupled to make a plurality of longitudinal easy folding lines on the web 100 in transit between the two crimping rollers 21, 22.
  • the crimping rollers 21, 22 have a wavy profile, with respective protrusions and recesses, configured to condition the material in such a way as to make easy folding lines at each interface between protrusion and recess of the two crimping rollers 21, 22.
  • the crimping station comprises a supporting element 23 for supporting the crimping rollers 21, 22 and configured to adopt variable position and/or orientation in such a way as to vary the geometry of the path followed by the web 100 in the crimping station 20; the supporting element 23 thus comprises motor means acting on the supporting element 23 to vary the position and/or orientation of the supporting element 23.
  • the supporting element is movable in such a way as to be able to modify the arrangement of the crimping rollers 21, 22 associated therewith, changing their arrangement within the crimping unit 1 so as to make the web 100 follow a different path defined by the specific arrangement adopted by the crimping rollers 21, 22.
  • the supporting element 23 is rotatable about an axis of adjustment "X" to allow turning the crimping station 20 in such a way as to modify, by increasing or decreasing, the winding angle of the web 100 on the first and/or the second crimping roller 21, 22.
  • the supporting element 23 is embodied by a vertical plate 23a which is supported rotatably about the axis of adjustment "X".
  • the first crimping roller 21 is supported by the supporting element 23 and is connected thereto at its centre of rotation, while the second crimping roller 22 is supported by the supporting element 23 and connected thereto in a zone outside its centre of rotation.
  • the axis of rotation of the first crimping roller 21 is coaxial with the axis of adjustment "X"
  • the axis of rotation "Y" of the second crimping roller 22 is eccentric relative to the axis of adjustment "X”.
  • the position of the first crimping roller 21 remains substantially unchanged, while the second crimping roller 22 performs a movement of revolution around the first crimping roller 21.
  • the supporting element 23 is rotatably supported at a peripheral portion by means of a curved guide which extends around at least one stretch of a circle concentric with the axis of adjustment "X".
  • the curved guide 25 can define a closed path or, alternatively, an open stretch, depending on the range of angular adjustment around the axis of adjustment "X".
  • the supporting element 23 also comprises guide means, such as, for example, roller pairs, sliders or other, which are slidably engaged on the curved guide.
  • guide means such as, for example, roller pairs, sliders or other, which are slidably engaged on the curved guide.
  • the supporting element 23 also comprises motor means, preferably embodied by a rack and pinion drive mechanism disposed in proximity to the curved guide and associated therewith in such a way as to allow it to perform a movement, specifically a rotation, about the axis of adjustment "X".
  • motor means preferably embodied by a rack and pinion drive mechanism disposed in proximity to the curved guide and associated therewith in such a way as to allow it to perform a movement, specifically a rotation, about the axis of adjustment "X".
  • the second crimping roller 22 is adjustably mounted on the supporting element 23 in such a way as to allow varying its position relative to the first crimping roller 21.
  • This technical feature allows moving the second crimping roller 22 towards/away from the first crimping roller 21 in such a way as, for example, to allow inserting the web 100, facilitate maintenance and repairs on the crimping station 20 or allow adapting the distance between the crimping rollers 21 and 22 as a function of the height or other features of the web 100 to be crimped.
  • the second crimping roller 22 is mounted on the supporting element 23 by means of an eccentric, rotatable roller bracket 22a.
  • the roller bracket 22a is configured to rotate about a respective axis of rotation "Y" parallel to the axis of adjustment "X" and the second crimping roller 22 is mounted on the roller bracket 22a rotatably about a respective axis of rotation "Z” parallel and eccentric relative to the axis of rotation "Y” of the roller bracket 22a.
  • the roller bracket 22a is associated with an actuator configured to rotate the roller bracket 22a by a fine adjustment movement about the respective axis of rotation "Y".
  • the supporting element 23 comprises an actuator which allows rotating the roller bracket 22a in such a way as to cause the second crimping roller 22 mounted thereon to rotate eccentrically, thereby moving it towards/away from the first crimping roller 21.
  • the supporting element 23 comprises a limit stop device which defines a limit to the rotational movement of the roller bracket.
  • the limit stop device may be embodied, for example, by an adjustment screw or a rotary lead nut and screw coupling, so as to allow the angular stroke of the roller bracket 22a to be adjusted very precisely.
  • the crimping station 20 Preferably upstream of the crimping rollers 21, 22 relative to the feed direction "A" of the web 100, the crimping station 20 also comprises a guide roller 24 mounted on the supporting element 23 eccentrically relative to the axis of adjustment "X".
  • the guide roller 24 is associated with the supporting element 23 in such a way as to intercept and divert the stretch of the web 100 between the exit of the infeed station 10, specifically from the diverting roller 13, and the crimping rollers 21, 22 when the supporting element 23 is in a first position interval, and so as not to intercept the web 100 when the supporting element 23 is in a second position interval, different from the first interval, thus moving to a non-operating position.
  • the first position interval is a first interval of angular positions
  • the second position interval is a second interval of angular positions
  • the supporting element 23 is configured to rotate between a plurality of possible positions where the guide roller 24 intercepts or does not intercept the web 100.
  • the web may or may not intercept the guide roller 24.
  • the guide roller 24 When the web 100 engages the guide roller 24, the latter provides a reference point which determines the point of engagement of the web 100 with the crimping rollers 21, 22 independently of the diverting roller 13, if any, of the feed station 10, and thus allowing stably fixing the geometry of the path followed by the web 100 entering the crimping station 20 and at the same time keeping the possibility of modifying the path at the exit by moving the supporting element 23.
  • the guide roller 24 is selectively engageable in such a way as to allow fixing or not fixing the geometry of the path followed by the web 100 entering the crimping station 20 depending on whether or not it is necessary to modulate only the path of the web 100 at the exit of the crimping station 20.
  • the guide roller 24 is rotationally at a fixed position on the supporting element 23.
  • the crimping unit 1 also comprises a gathering station 30 configured to receive the web 100 and progressively gather it in order to give the web a substantially cylindrical shape.
  • the gathering station 30 comprises a pre-shaping member 31 whose cross-sectional shape transverse to the feed direction "of the web 100 is curved and shaped to give the web 100 a shape substantially like that of a U.
  • the shape of the pre-shaping member 31 is such as to allow the web 100 from the crimping station 20 to be deformed by simultaneously closing the web on itself to obtain an at least partly cylindrical shape of the web 100, preferably according to the above mentioned substantially U shaped form, and folding the web on at least some of the longitudinal fold lines.
  • the gathering station 30 also comprises a shaping device 32 configured to receive the pre-shaped web 100 from the pre-shaping member 31 and having a convergent shaping duct 32a, described in more detail below, to give the web 100 the substantially cylindrical shape.
  • the pre-shaping member has an outside surface 31a which is adapted to come into contact with the web 100 and which comprises a succession of protrusions and recesses adapted to engage the web 100 at respective longitudinal easy folding lines in such a way as to pre-fold the web 100 along the longitudinal easy folding lines.
  • the protrusions and recesses are distributed along the entire outside surface 31a of the pre-shaping member 31.
  • the protrusions and recesses are distributed non-uniformly along the outside surface 31a of the pre-shaping member 31.
  • the spacing between adjacent protrusions for engaging a portion of the edge of the web 100 is greater than the spacing between adjacent protrusions intended to engage a central portion of the web 100.
  • This structure allows obtaining a particularly functional distribution of the pressure on the web 100, transferring the latter in optimum manner to the shaping device 32 in such a way as to improve the structural quality of the continuous stream resulting from the step of gathering the web 100.
  • the outside surface 31a of the pre-shaping member 31 extends along an open line joined by a supporting portion 31b configured to keep the pre-shaping member 31 suspended at a predetermined position.
  • the pre-shaping member 31 comprises a supporting portion 31b which supports and connects it to the body of the crimping unit 1 in such way that it can, in use, remain in the correct position to engage the web 100.
  • the crimping unit also comprises adjustment means 31c, associated with the supporting portion 31b, for adjusting the position and/or orientation of the pre-shaping member 31.
  • the presence of the adjustment means 31c allows moving the pre-shaping member to dynamically modify its position and/or orientation, in particular relative to the web 100.
  • This movement is accomplished preferably by a translation in a direction perpendicular to the feed direction of the web 100 around the pre-shaping member 32 and may adopt a vertical orientation when the web 100 passes horizontally over the pre-shaping member 32.
  • This movement may also be accomplished by a rotation about an axis of rotation "K" transverse to the feed direction of the web 100 and preferably horizontal. This rotation can therefore be added to the aforementioned translational movement and is preferably controllable independently thereof.
  • the pre-shaping device 31 is configured to be positioned above the web 100 and to tension it by applying a downwardly directed force.
  • the outside surface 31a of the pre-shaping member 31 has an upward facing concavity and the adjustment means 31c are configured to lower the pre-shaping member 31 to engage the web 100 by pushing it downwards or to lift the pre-shaping member 31 to reduce the force it applies on the web 100 until it is disengaged from the web.
  • adjustment means 31c might also be configured to perform only the rotational movement about the axis "K" without necessarily being structured to perform the translational movement, and vice versa.
  • the web 100 leaving the crimping station 20 enters the gathering station 30, first engaging the pre-shaping member 31 and then moving into the shaping device 32.
  • the pre-shaping member assists the shaping device 32 in gathering the web 100, thereby improving the structural features of the finished product.
  • the pre-shaping member starts the shaping process by at least partly shaping the web 100 and at the same time, thereby contributing to the deformation of the web around the longitudinal fold lines.
  • the gathering station 30 also comprises a shaping duct 32a and an inserting device 33 configured to insert an additional component "C" into the stream formed by the gathered web 100.
  • the inserting device 33 comprises an inserting duct 34 for inserting the additional component "C" placed inside the shaping duct 32a, preferably coaxially therewith.
  • the additional component "C" is positioned centrally in the rod formed by gathering the web 100.
  • the shaping duct 32a is convergent in shape along the feed direction of the additional component "C" which substantially coincides with the feed direction "A" of the web 100, at least in the stretch of path through the gathering station 30.
  • the shaping duct 32a has a frustoconical profile.
  • the additional component "C” is a flavouring component which allows giving the web 100 a specific aroma to modify the flavour of the smoke produced by the end product made using the web 100.
  • flavouring component may comprise a thread made of or impregnated with a flavouring material.
  • the inserting device 33 comprises tensioning members 33a adapted to keep the flavouring thread under tension.
  • the inserting device may further comprises a roll holder 35 configured to support a plurality of rolls of additional component "C" and to adopt variable positions and/or orientations in such a way as to change the position of the rolls.
  • the presence of the roll holder 35 optimizes the production process of the rod from the web 100 comprising the additional component "C" because it allows automating the switch from one roll to another in such a way as to allow replacing depleted rolls with new rolls without interrupting the production process of the crimping unit 1.
  • the roll holder 35 comprises a plurality of supports 36 associable with respective rolls of additional material "C" and rotatable to move the respective rolls towards or away from the forming duct 32a.
  • the roll holder 35 is thus configured to move a single support 36 containing a roll of additional material "C" to the forming duct 32a and, when the roll is nearly depleted, to move it away from the forming duct 32a and to automatically replace it with a new roll on another support 36.
  • this invention achieves the preset aims and overcomes the abovementioned disadvantages of the prior art by providing a crimping unit which allows optimizing the process of crimping the web 100 and making a continuous rod from that web of material to produce products of the tobacco industry.

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  • Absorbent Articles And Supports Therefor (AREA)

Claims (7)

  1. Crimpeinheit zum Crimpen einer Materialbahn (100), die zur Herstellung von Produkten der Tabakindustrie verwendet wird, umfassend:
    - eine Crimpstation (20), umfassend eine erste Crimprolle (21) und eine zweite Crimprolle (22), die betriebswirksam gekoppelt sind, um eine Vielzahl an einfach zu faltenden Längslinien auf der Bahn (100) auf dem Weg zwischen den Crimprollen (21, 22) zu bilden;
    - eine Sammelstation (30), die sich stromabwärts der Crimpstation (20) befindet und so konfiguriert ist, dass sie die Bahn (100) erhält und schrittweise sammelt, um der Bahn (100) eine im Wesentlichen zylindrische Form zu geben;
    wobei die Station entlang der Vorschubrichtung der Bahn (100) umfasst:
    - ein Vorformelement (31), dessen Querschnittsform quer zur Vorschubrichtung der Bahn (100) gekrümmt und geformt ist, um der Bahn (100) eine Form zu geben, die im Wesentlichen der eines U ähnelt; und
    - eine Formvorrichtung (32), die konfiguriert ist, um die vorgeformte Bahn (100) von dem Vorformelement (31) zu erhalten und aufweisend einen Formungskanal (32a), um der Bahn (100) die im Wesentlichen zylindrische Form zu geben; dadurch gekennzeichnet, dass das Vorformelement (31) die gekrümmte Form auf deren Außenfläche (31a) aufweist, die ausgelegt ist, um mit der Bahn (100) in Kontakt zu kommen, wobei die Außenfläche (31a) eine Querschnittsform quer zur Vorschubrichtung der Bahn (100) aufweist, die gekrümmt und geformt ist, um der Bahn (100) eine Form zu geben, die im Wesentlichen der eines U ähnelt, und die entlang der Außenfläche (31a) auch eine Folge von Vorsprüngen und Aussparungen aufweist, die ausgelegt sind, um die Bahn (100) an den jeweiligen einfach zu faltenden Längslinien einzugreifen, sodass die Bahn (100) entlang der einfach zu faltenden Längslinien vorgefaltet wird.
  2. Einheit nach Anspruch 1, wobei die Vorsprünge und Aussparungen entlang der gesamten Außenfläche (31a) des Vorformelements (31) verteilt sind.
  3. Einheit nach einem oder beiden der Ansprüche 1 und 2, wobei die Vorsprünge und Aussparungen entlang der Außenfläche (31a) des Vorformelements (31) heterogen beabstandet sind, wobei der Abstand zwischen benachbarten Zähnen zum Eingreifen eines Abschnitts des Randes der Bahn (100) insbesondere größer als der Abstand zwischen benachbarten Zähnen zum Eingreifen des zentralen Abschnitts der Bahn (100) ist.
  4. Einheit nach einem oder mehreren der vorhergehenden Ansprüche, wobei sich die Außenfläche (31a) des Vorformelements (31) entlang einer offenen Linie erstreckt, die durch einen Stützabschnitt (31b) zusammengefügt ist, und wobei der Stützabschnitt (31b) konfiguriert ist, um das Vorformelement (31) in einer vorbestimmten Position in der Schwebe zu halten.
  5. Einheit nach Anspruch 4, umfassend Einstellmittel (31c) zum Einstellen der Position und/oder Orientierung des Vorformelements (31), wobei die Einstellmittel (31c) mit dem Stützabschnitt (31b) assoziiert sind.
  6. Einheit nach Anspruch 5, wobei die Außenfläche (31a) des Vorformelements (31) eine nach oben gerichtete Konkavität aufweist und die Einstellmittel (31c) konfiguriert sind, um das Vorformelement (31) anzuheben oder abzusenken.
  7. Einheit nach Anspruch 5 oder 6, wobei die Außenfläche (31a) des Vorformelements (31) eine nach oben gerichtete Konkavität aufweist und die Einstellmittel (31c) konfiguriert sind, um das Vorformelement (31) um eine Achse (K) quer zur Vorschubrichtung der Bahn (100) und vorzugsweise horizontal zu drehen.
EP18200720.3A 2017-10-18 2018-10-16 Crimpeinheit Active EP3473112B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18200720T PL3473112T3 (pl) 2017-10-18 2018-10-16 Jednostka zaciskająca

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102017000117800A IT201700117800A1 (it) 2017-10-18 2017-10-18 Unità di crimpatura

Publications (2)

Publication Number Publication Date
EP3473112A1 EP3473112A1 (de) 2019-04-24
EP3473112B1 true EP3473112B1 (de) 2021-03-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18200720.3A Active EP3473112B1 (de) 2017-10-18 2018-10-16 Crimpeinheit

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EP (1) EP3473112B1 (de)
IT (1) IT201700117800A1 (de)
PL (1) PL3473112T3 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023194199A1 (en) * 2022-04-07 2023-10-12 Philip Morris Products S.A. Aerosol-generating rod production using a curved and tapered contact surface

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2164702A (en) * 1936-02-29 1939-07-04 Davidson Glenn Method and apparatus for making cigarette mouthpieces
GB201411372D0 (en) * 2014-06-26 2014-08-13 Essentra Filter Products Dev Co Pte Ltd Tobacco smoke filter
RU2762054C2 (ru) * 2014-08-13 2021-12-15 Филип Моррис Продактс С.А. Нагреваемое образующее аэрозоль изделие
WO2016071267A1 (en) 2014-11-03 2016-05-12 Philip Morris Products S.A. Method and apparatus for manufacturing a crimped web
PL3232828T3 (pl) * 2014-12-16 2020-10-19 Philip Morris Products S.A. Sposób i urządzenie do kształtowania zasadniczo płaskiego materiału ciągłego

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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Publication number Publication date
IT201700117800A1 (it) 2019-04-18
EP3473112A1 (de) 2019-04-24
PL3473112T3 (pl) 2021-09-06

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