EP1946659A1 - Smoke-free cigarette, cigarillo, cigar or similar - Google Patents

Smoke-free cigarette, cigarillo, cigar or similar Download PDF

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Publication number
EP1946659A1
EP1946659A1 EP07001135A EP07001135A EP1946659A1 EP 1946659 A1 EP1946659 A1 EP 1946659A1 EP 07001135 A EP07001135 A EP 07001135A EP 07001135 A EP07001135 A EP 07001135A EP 1946659 A1 EP1946659 A1 EP 1946659A1
Authority
EP
European Patent Office
Prior art keywords
smoke
depot
free cigarette
mouthpiece
heating
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
EP07001135A
Other languages
German (de)
French (fr)
Other versions
EP1946659B1 (en
Inventor
Willi Kälin
Hansjörg Gutknecht
Georg Dr. Fallegger
Willy Zurschmiede
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.)
Grischa Plast AG
Original Assignee
Grischa Plast AG
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 Grischa Plast AG filed Critical Grischa Plast AG
Priority to AT07001135T priority Critical patent/ATE418276T1/en
Priority to EP07001135A priority patent/EP1946659B1/en
Priority to DE502007000333T priority patent/DE502007000333D1/en
Priority to PCT/EP2008/050455 priority patent/WO2008087161A1/en
Publication of EP1946659A1 publication Critical patent/EP1946659A1/en
Application granted granted Critical
Publication of EP1946659B1 publication Critical patent/EP1946659B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/90—Arrangements or methods specially adapted for charging batteries thereof
    • A24F40/95—Arrangements or methods specially adapted for charging batteries thereof structurally associated with cases
    • 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
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors

Definitions

  • the invention relates to a smoke-free cigarette, cigarillo, cigar or the like. Comprising several parts: a reusable part with a Thermo-KunststoffUmmantelung, one or more air inlet openings and an electrically connectable heating source, and an optionally reusable, replaceable mouthpiece, and a interchangeable, non-reusable nicotine aroma depot, wherein the heat released by the heat source, on the one hand preheats the depot and releases the nicotine and flavoring substances in the depot, and heats the air sucked in by the consumer through the air flow channels and thus the depot released nicotine and the aroma substances with the air flow, and so be absorbed by the smoker.
  • Such a cigarette is for example from the EP 1 536 703 B1 known.
  • a disadvantage has made noticeable in the prior art cigarette that nicotine and flavorings could be released from the depot neither to the desired extent, nor in the required manner.
  • the depot is partly positively and / or positively received by the mouthpiece and coated with a diffusion barrier
  • the heating source is provided in the form of a centrally disposed heating element, which in whole or in part by a heat pipe in such a way is surrounded, that at least one axially extending air flow channel between the heating element and the heat pipe is arranged, the latter with its mouthpiece adjacent rear end partially enclosing the depot and having at least one air inlet opening on its front.
  • the inventive is therefore that the depot is optimally absorbed and firmly positioned by the mouthpiece and the sautstrom, which allows optimal heat transfer, slipping of the depot, or even swallowing by the user is prevented with certainty.
  • this can be achieved by a special geometry of the axial inner surface of the mouthpiece or the outer surface of the depot, which match each other can be coordinated, for example in the form of a flower-shaped or rosette-shaped design, or are non-positively connected to each other. Other designs are, however, conceivable for the skilled person.
  • a particularly good transition between the parts is achieved because the depot protrudes partly from the mouthpiece in the heat pipe.
  • the latter surrounds the heating element, wherein the heat pipe advantageously an O-shaped spacer and sealing ring is positioned, which locks the heating element with the heat pipe in the middle of Ummandlung and prevents air flow between thermo conversion and heat pipe.
  • the heat pipe advantageously an O-shaped spacer and sealing ring is positioned, which locks the heating element with the heat pipe in the middle of Ummandlung and prevents air flow between thermo conversion and heat pipe.
  • the heat pipe also the particular cross section of the heat pipe, which forms at least one axially extending air flow channel between the heating element and the heat pipe, so that an optimal transmission of the absorbed thermal energy is ensured.
  • the heat pipe also allows storage of thermal energy, so that this is sufficient for the usual period of use of a cigarette of a few minutes.
  • the inventive principle is based on a smokeless, cigarette-like inhaler, called NicStic, and a charging station as in the Figures 1 and 2 to be shown.
  • the "Nic” looks like the filter of a cigarette. Its function is the absorption of the nicotine and flavorings. It consists of two in FIGS. 2 and 3 shown items.
  • the mouthpiece 14 is hollow inside. Due to its specially shaped internal geometry (see Fig. 4 ), it can optimally absorb nicotine flavor depot 16.
  • the rosette-shaped geometry 26 provides for a firm positioning, thus ensuring the slippage of the depot 16 and thus prevents it from being swallowed. It also plays an important role in sealing between "Nic” and “Stic” due to its shape. It prevents the entry of cold ambient air, as it is flexible and malleable in its geometry and material, being partially inserted into the "Stic", thereby sealing the transition.
  • the mouthpiece 14 is made of cellulose acetate fiber wrapped in brown, filter-colored paper.
  • cellulose acetate fiber As an alternative to cellulose acetate fiber, the use of polyethylene fiber as filler material is possible. Other materials are conceivable.
  • the depot (16, see Fig. 5 ) stores the nicotine and the flavors released via the smoke act.
  • the depot 16 is covered with a diffusion barrier 17, which prevents premature escape and volatilization of the nicotine and the flavorings.
  • This diffusion barrier 17 consists of a moisture-repellent material PP (polypropylene), or alternatively of aluminum foil.
  • the filler is made of polyethylene fiber, which has a very low affinity for nicotine and flavorings. Thus, the nicotine and aroma is easily released from the depot 16.
  • the heating rod 18 consists of a wound copper wire which is cast in a rod-shaped ceramic.
  • the ceramic stores the heat needed to dissolve nicotine and aromatic substances. The heat is released by passing the fresh air sucked in, as well as the direct contact with the heat pipe 20.
  • the heat pipe 20 is made of aluminum and transfers the thermal energy generated in the heating element 18 directly to the nicotine aroma depot 16 (see FIG. 5 ) by partially enclosing it.
  • the heat pipe 20 has a circular cross-section with two bulges 24, 25 (see FIG. 7 ), which on the one hand causes the heating element 18 is clamped, can not slip in the sheath 12, and on the other hand ensures optimal energy absorption by the direct contact. Due to the special cross-section is also achieved that two air channels 21, 22 arise between the heating element 18 and heat pipe 20, which ensure optimum storage and forwarding of recorded in the "Stic" thermal energy. These two air channels 21, 22 are defined precisely so that a draw resistance which is not too great arises, but on the other hand a turbulent flow of the fresh air sucked through is ensured, which leads to an additional heating of the fresh air.
  • the O-ring seal 28 is made of a temperature and weather-resistant elastomer and sits in an O-ring groove on the outside of the heat pipe 20. Due to its tight position, it positions and locks the heating element 18 to the heat pipe 20 in the middle of the sheath 12 and seals the "Stic" in the direction of Nicotine Aroma Depot 16.
  • the loading case 30 consists of seven components, namely Etuideckel, Etuiboden, cover, light guide, battery compartment cover and the battery 32 and electronics.
  • the charging case 30 stores in a rechargeable battery 32 for heating the heating element 18 required electrical energy.
  • the solution according to the invention is based on the one hand on the elasticity and the geometry of the "Nic”, and the geometry of the sheath 12 for receiving the "nics", which is introduced via a cone in the sheath 12 in the "Stic". Through the cone, the mouthpiece 14 of the "nics” is compressed and seals in this way the cigarette of the invention.
  • the supply of energy in the heating element 18 is designed in minimum (4.5 W) and duration (about 0.5 min.) So that the release of nicotine required final temperature of at least 65 ° C and the heat capacity required for the normally performed flues is held up.
  • the depot 16 is heated by the heat transfer of the heat pipe 20 from the heating element 18, on the outer circumference. Due to this heating of the depot 16 on the outer circumference, a part of the nicotine is released in the same.
  • An additional heat source forms the heated air, which is caused by the design-related design of the heat pipe 20.
  • the fresh air is sucked through, for example, three inlet openings in the interior of the "Stic".
  • the small volume of heated air is now drawn between the heating rod 18 and heat pipe 20 at a high flow rate, creating a turbulent flow.
  • the turbulent fresh air is heated by the heated body (heat pipe & heating rod) and by the friction effect of the air ducts 21, 22 designed for this purpose.
  • the heated air flows (during the smoke act) through the depot 16, where it has a significant contribution to the release of nicotine.
  • the active ingredients are transported in the air stream and transferred aerosol or gaseous into the oral cavity.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacture Of Tobacco Products (AREA)

Abstract

The smoke-free cigarette (10) has a thermal-plastic-casing (12), one or more air inlet openings, an electrically connectable heat source, an usable and exchangeable mouthpiece (14), and non-usable nicotine flavor depot. The depot is partly received and actuated by the mouthpiece and is encased with a diffusion barrier. The heat source is provided in the form of a centrically arranged heating rod, which is surrounded completely or partly by a heat conducting tube, such that an axially running air flow channel, which is arranged between the heating rod and the heat conducting tube. An independent claim is also included for a set with a smoke-free cigarette, small cigar or cigar.

Description

Die Erfindung betrifft eine rauchfreie Zigarette, Zigarillo, Zigarre oder dgl., umfassend mehrere Teile: ein wieder verwendbares Teil mit einer Thermo-KunststoffUmmantelung, einer oder mehrerer Lufteinlassöffnungen und einer elektrisch anschließbaren Heizquelle, und ein ggf. wieder verwendbares, austauschbares Mundstück, sowie ein austauschbares, nicht wieder verwendbares Nikotin-Aroma-Depot, wobei die durch die Heizquelle freigesetzte Wärme, einerseits das Depot vorheizt und das im Depot befindliche Nikotin und die Aromastoffe freisetzt, und die vom Konsumenten durch die Luftströmungskanäle angesaugte Luft erwärmt und so das im Depot befindliche freigesetzte Nikotin und die Aromastoffe mit der Luftströmung mitnimmt, und so vom Raucher aufgenommen werden.The invention relates to a smoke-free cigarette, cigarillo, cigar or the like. Comprising several parts: a reusable part with a Thermo-KunststoffUmmantelung, one or more air inlet openings and an electrically connectable heating source, and an optionally reusable, replaceable mouthpiece, and a interchangeable, non-reusable nicotine aroma depot, wherein the heat released by the heat source, on the one hand preheats the depot and releases the nicotine and flavoring substances in the depot, and heats the air sucked in by the consumer through the air flow channels and thus the depot released nicotine and the aroma substances with the air flow, and so be absorbed by the smoker.

Eine derartige Zigarette ist beispielsweise aus der EP 1 536 703 B1 bekannt geworden. Nachteilig hat sich bei der vorbekannten Zigarette bemerkbar gemacht, dass Nikotin und Aromastoffe weder im gewünschten Ausmaß, noch in der erforderlichen Weise aus dem Depot freigesetzt werden konnten.Such a cigarette is for example from the EP 1 536 703 B1 known. A disadvantage has made noticeable in the prior art cigarette that nicotine and flavorings could be released from the depot neither to the desired extent, nor in the required manner.

Der vorliegenden Erfindung liegt im Hinblick darauf die Aufgabe zugrunde, die eingangs genannte Zigarette derart zu verbessern, dass die erforderliche thermische Energie an das Depot übertragen wird, um die gewünschte Beförderung der flüssigen Nikotin-Aroma-Mischung, das einen Siedepunkt von 246 bis 247°C aufweist und der Aromastoffe gezielt durch das zum Anwender liegende Mundstückende zu ermöglichen und einen frühzeitigen oder sonstigen Austritt der gasförmigen Stoffe zu vermeiden.It is an object of the present invention to improve the cigarette mentioned above such that the required thermal energy is transferred to the depot in order to achieve the desired transport of the liquid nicotine-flavor mixture having a boiling point of 246 to 247 ° C and to allow the flavoring targeted by the mouthpiece end to the user and to avoid premature or other leakage of gaseous substances.

Diese Aufgabe wird in überraschender Weise dadurch gelöst, dass das Depot teilweise vom Mundstück form- und/oder kraftschlüssig aufgenommen und mit einer Diffusionssperre ummantelt ist, und dass die Heizquelle in Form eines zentrisch angeordneten Heizstabes vorgesehen ist, welcher ganz oder teilweise von einem Wärmeleitrohr derart umgeben ist, dass mindestens ein axial verlaufender Luftströmungskanal zwischen Heizstab und Wärmeleitrohr angeordnet ist, wobei letzteres mit seinem am Mundstück angrenzenden hinteren Ende teilweise das Depot umschließt und mindestens eine Lufteintrittsöffnung an seiner Vorderseite aufweist.This object is achieved in a surprising manner that the depot is partly positively and / or positively received by the mouthpiece and coated with a diffusion barrier, and that the heating source is provided in the form of a centrally disposed heating element, which in whole or in part by a heat pipe in such a way is surrounded, that at least one axially extending air flow channel between the heating element and the heat pipe is arranged, the latter with its mouthpiece adjacent rear end partially enclosing the depot and having at least one air inlet opening on its front.

Das Erfinderische liegt also darin, dass das Depot optimal vom Mundstück und vom Wärmeleitstrom aufgenommen und fest positioniert wird, wodurch eine optimale Wärmeübertragung ermöglicht, ein Verrutschen des Depots, oder gar ein Verschlucken durch den Anwender mit Sicherheit verhindert wird. Vorteilhafterweise kann dieses durch eine besondere Geometrie der axialen Innenfläche des Mundstücks bzw. der Außenfläche des Depots erzielt werden, die passgerecht aufeinander abgestimmt sein können, beispielsweise in Form einer blumenförmigen oder rosettenförmigen Gestaltung, oder kraftschlüssig miteinander verbunden sind. Andere Gestaltungen sind für den Fachmann jedoch denkbar. Ebenso wird ein besonders guter Übergang zwischen den Teilen erzielt, da das Depot zum Teil aus dem Mundstück in das Wärmeleitrohr hineinragt. Letzteres umgibt den Heizstab, wobei am Wärmeleitrohr vorteilhafter Weise ein O-förmiger Distanz- und Dichtungsring positioniert ist, der den Heizstab mit dem Wärmeleitrohr mittig in der Ummandlung arretiert und Luftströmungen zwischen Thermoumwandlung und Wärmeleitrohr unterbindet. Von erfindungsgemäßer Bedeutung ist ebenfalls der besondere Querschnitt des Wärmeleitrohrs, der mindestens einen axial verlaufenden Luftströmungskanal zwischen Heizstab und Wärmeleitrohr ausbildet, so dass eine optimale Weiterleitung der aufgenommenen thermischen Energie sichergestellt ist. Darüber hinaus ermöglicht das Wärmeleitrohr auch eine Speicherung von thermischer Energie, so dass diese für die übliche Anwendungsdauer einer Zigarette von einigen Minuten ausreicht.The inventive is therefore that the depot is optimally absorbed and firmly positioned by the mouthpiece and the Wärmeleitstrom, which allows optimal heat transfer, slipping of the depot, or even swallowing by the user is prevented with certainty. Advantageously, this can be achieved by a special geometry of the axial inner surface of the mouthpiece or the outer surface of the depot, which match each other can be coordinated, for example in the form of a flower-shaped or rosette-shaped design, or are non-positively connected to each other. Other designs are, however, conceivable for the skilled person. Likewise, a particularly good transition between the parts is achieved because the depot protrudes partly from the mouthpiece in the heat pipe. The latter surrounds the heating element, wherein the heat pipe advantageously an O-shaped spacer and sealing ring is positioned, which locks the heating element with the heat pipe in the middle of Ummandlung and prevents air flow between thermo conversion and heat pipe. Of importance according to the invention is also the particular cross section of the heat pipe, which forms at least one axially extending air flow channel between the heating element and the heat pipe, so that an optimal transmission of the absorbed thermal energy is ensured. In addition, the heat pipe also allows storage of thermal energy, so that this is sufficient for the usual period of use of a cigarette of a few minutes.

Weitere Vorteile und Merkmale gehen aus den vorstehenden Unteransprüchen hervor, die auch gemeinsam mit dem Hauptanspruch von erfinderischer Bedeutung sein können.Further advantages and features emerge from the preceding subclaims, which may also be of inventive importance together with the main claim.

Im Folgenden wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung zum besseren Verständnis der Erfindung näher erläutert, auf das die Erfindung jedoch nicht beschränkt ist. Es zeigt:

Fig. 1
eine perspektivische Abbildung der erfindungsgemäßen rauchfreien Zigarette im zusammengesetzten Zustand;
Fig. 2
eine perspektivische Ansicht des erfindungsgemäßen Ladegerätes;
Fig. 3
eine perspektivische Ansicht von dem ggf. austauschbaren Mundstück mit eingesetztem Nikotin-Aroma-Depot;
Fig. 4
eine Querschnittsansicht des in Fig. 3 gezeigten Mundstücks;
Fig. 5
eine weitere perspektivische Ansicht des Depots mit einer Diffusionssperre;
Fig. 6
eine Explosionsdarstellung des wieder verwendbaren Teils der erfindungsgemäßen rauchfreien Zigarette; und
Fig. 7
eine Querschnittsansicht von Heizstab mit eng anliegendem Wärmeleitrohr unter Ausbildung von zwei Luftströmungskanälen.
In the following an embodiment of the invention with reference to the drawing for a better understanding of the invention is explained in more detail, to which the invention is not limited. It shows:
Fig. 1
a perspective view of the smoke-free cigarette according to the invention in the assembled state;
Fig. 2
a perspective view of the charger according to the invention;
Fig. 3
a perspective view of the possibly interchangeable mouthpiece with inserted nicotine aroma depot;
Fig. 4
a cross-sectional view of in Fig. 3 shown mouthpiece;
Fig. 5
another perspective view of the depot with a diffusion barrier;
Fig. 6
an exploded view of the reusable part of the smoke-free cigarette according to the invention; and
Fig. 7
a cross-sectional view of heating element with close-fitting heat pipe to form two air flow channels.

Nachfolgend werden die Einzelteile der Erfindung näher bezüglich Zusammensetzung, Form und Funktion beschrieben.In the following, the individual parts of the invention will be described in more detail with regard to composition, shape and function.

Das erfindungsgemäße Prinzip beruht auf einem rauchfreien, zigarettenähnlichen Inhalator, genannt NicStic, und einer Ladestation wie sie in den Figuren 1 und 2 gezeigt werden.The inventive principle is based on a smokeless, cigarette-like inhaler, called NicStic, and a charging station as in the Figures 1 and 2 to be shown.

Das genannte System besteht - grob gesagt - aus drei Teilen:

  • der sog. "Nic", Mundstück 14 mit Nikotin-Aroma-Depot 16,
  • der sog. "Stic", wieder verwendbares vorderes Teil mit Heizquelle u.a.
  • Ladestation 30
The said system consists - roughly speaking - of three parts:
  • the so-called "Nic", mouthpiece 14 with nicotine aroma depot 16,
  • the so-called "Stic", reusable front part with heat source and others
  • Charging station 30

Der "Nic" gleicht optisch dem Filter einer Zigarette. Seine Funktion ist die Aufnahme der Nikotin- und Aromastoffe. Er besteht aus zwei in Fig. 2 und 3 gezeigten Einzelteilen.The "Nic" looks like the filter of a cigarette. Its function is the absorption of the nicotine and flavorings. It consists of two in FIGS. 2 and 3 shown items.

Erfindungsgemäß ist das Mundstück 14 innen hohl. Durch seine speziell geformte Innengeometrie (siehe Fig. 4), kann es das Nikotin-Aroma-Depot 16 optimal aufnehmen. Die rosettenförmige Geometrie 26 sorgt für eine feste Positionierung, sichert so das Verrutschen des Depots 16 und verhindert damit, dass es verschluckt werden könnte. Zudem übernimmt es durch seine Formgebung eine wesentliche Rolle zur Abdichtung zwischen "Nic" und "Stic". Es verhindert den Eintritt von kalter Fremdluft, da es in seiner Geometrie und Material flexibel und formbar ist, wobei es teilweise in den "Stic" eingeführt ist, und damit den Übergang abdichtet.According to the mouthpiece 14 is hollow inside. Due to its specially shaped internal geometry (see Fig. 4 ), it can optimally absorb nicotine flavor depot 16. The rosette-shaped geometry 26 provides for a firm positioning, thus ensuring the slippage of the depot 16 and thus prevents it from being swallowed. It also plays an important role in sealing between "Nic" and "Stic" due to its shape. It prevents the entry of cold ambient air, as it is flexible and malleable in its geometry and material, being partially inserted into the "Stic", thereby sealing the transition.

Das Mundstück 14 besteht aus Celluloseacetatfaser, das von braunem, filterfarbenem Papier umwickelt ist. Alternativ zur Celluloseacetatfaser ist die Verwendung von Polyethylenfaser als Füllmaterial möglich. Weitere Materialien sind denkbar.The mouthpiece 14 is made of cellulose acetate fiber wrapped in brown, filter-colored paper. As an alternative to cellulose acetate fiber, the use of polyethylene fiber as filler material is possible. Other materials are conceivable.

Im Depot (16, siehe Fig. 5) werden das Nikotin und die Geschmackstoffe gelagert, die über den Rauchakt freigesetzt werden.In the depot (16, see Fig. 5 ) stores the nicotine and the flavors released via the smoke act.

Die Freisetzung oder Überführung von Nikotin und Aromastoffen von den Filterfasern des Depots in die angesaugte Luft findet in Aerosolen (Sprühnebel) und/oder in Gasform statt.The release or transfer of nicotine and flavorings from the filter fibers of the depot into the sucked air takes place in aerosols (spray mist) and / or in gaseous form.

Erfindungsgemäß ist, dass das Depot 16 mit einer Diffusionssperre 17 ummantelt ist, welche den frühzeitigen Austritt und das Verflüchtigen des Nikotins und der Aromastoffe verhindert.According to the invention, the depot 16 is covered with a diffusion barrier 17, which prevents premature escape and volatilization of the nicotine and the flavorings.

Diese Diffusionssperre 17 besteht aus einem Feuchtigkeit abweisenden Material PP (Polypropylen), oder alternativ auch aus Aluminiumfolie.This diffusion barrier 17 consists of a moisture-repellent material PP (polypropylene), or alternatively of aluminum foil.

Das Füllmaterial besteht aus Polyethylenfaser, das eine sehr geringe Affinität zu Nikotin und Aromastoffen aufweist. Somit wird das Nikotin und Aroma leicht aus dem Depot 16 freigesetzt.The filler is made of polyethylene fiber, which has a very low affinity for nicotine and flavorings. Thus, the nicotine and aroma is easily released from the depot 16.

Der "Stic" (siehe Fig. 6) hat die Aufgabe, die zur Freisetzung der Nikotin- und Aromastoffe notwendige thermische Energie an das Nikotin-Aroma-Depot 16 zu übertragen. Er ist wieder verwendbar und besteht aus den folgenden vier Komponenten:

  • Ummantelung 12
  • Heizstab 18
  • Wärmeleitrohr 20
  • O-Dichtungsring 28
The "Stic" (see Fig. 6 ) has the task of transmitting the necessary for the release of nicotine and flavoring thermal energy to the nicotine flavor depot 16. It is reusable and consists of the following four components:
  • Sheath 12
  • Heating rod 18
  • Heat pipe 20
  • O-ring seal 28

Die Ummantelung 12 ist ein weisses, aus Thermoplast (PA66) bestehendes Rohr, dessen Hauptfunktion in der Wärmeisolierung liegt. Die Ummantelung 12 wurde so konzipiert, dass sie:

  • dem Aussehen einer zeitgemässen, modernen, handlichen Zigaretten Form entspricht
  • den Konsumenten beim Anfassen vor hohen Temperaturen schützt
  • den Heizstab 18 aufnimmt, positioniert und arretiert
  • das Wärmeleitrohr 20 positioniert und arretiert
  • das Mundstück 14 durch seine spezielle Geometrie ggf. aufnimmt und abdichtet.
The jacket 12 is a white thermoplastic pipe (PA66) whose main function is thermal insulation. The sheath 12 was designed to:
  • the appearance of a contemporary, modern, handy cigarette shape corresponds
  • protects consumers from high temperatures when touched
  • the heating rod 18 receives, positioned and locked
  • the heat pipe 20 is positioned and locked
  • possibly absorbs and seals the mouthpiece 14 by its special geometry.

Der Heizstab 18 besteht aus einem gewickelten Kupferdraht, der in eine stangenförmige Keramik eingegossen ist. Die Keramik speichert die für die Auflösung der Nikotin- und Aromastoffe notwendige Wärme. Die Abgabe der Wärme erfolgt durch das Vorbeiströmen der angesaugten Frischluft, sowie den direkten Kontakt mit dem Wärmeleitrohr 20.The heating rod 18 consists of a wound copper wire which is cast in a rod-shaped ceramic. The ceramic stores the heat needed to dissolve nicotine and aromatic substances. The heat is released by passing the fresh air sucked in, as well as the direct contact with the heat pipe 20.

Das Wärmeleitrohr 20 besteht aus Aluminium und überträgt die im Heizstab 18 erzeugte thermische Energie direkt auf das Nikotin-Aroma-Depot 16 (siehe Figur 5), indem es dieses teilweise umfasst.The heat pipe 20 is made of aluminum and transfers the thermal energy generated in the heating element 18 directly to the nicotine aroma depot 16 (see FIG. 5 ) by partially enclosing it.

Erfindungsgemäß besitzt das Wärmeleitrohr 20 einen kreisförmigen Querschnitt mit zwei Ausbuchtungen 24, 25 (siehe Figur 7), wodurch einerseits bewirkt wird, dass der Heizstab 18 geklemmt wird, nicht in der Ummantelung 12 verrutschen kann, und andererseits durch den direkten Kontakt eine optimale Energie-Aufnahme gewährleistet ist. Durch den besonderen Querschnitt wird außerdem erreicht, dass zwei Luftkanäle 21, 22 zwischen Heizstab 18 und Wärmeleitrohr 20 entstehen, die für eine optimale Speicherung und Weiterleitung der im "Stic" aufgenommenen thermischen Energie sorgen. Diese beiden Luftkanäle 21, 22 sind genau so definiert, dass ein nicht zu grosser Zugwiderstand entsteht, aber andererseits eine turbulente Strömung der durchgesaugten Frischluft gewährleistet ist, die zu einer zusätzlichen Erwärmung der Frischluft führt.According to the invention, the heat pipe 20 has a circular cross-section with two bulges 24, 25 (see FIG. 7 ), which on the one hand causes the heating element 18 is clamped, can not slip in the sheath 12, and on the other hand ensures optimal energy absorption by the direct contact. Due to the special cross-section is also achieved that two air channels 21, 22 arise between the heating element 18 and heat pipe 20, which ensure optimum storage and forwarding of recorded in the "Stic" thermal energy. These two air channels 21, 22 are defined precisely so that a draw resistance which is not too great arises, but on the other hand a turbulent flow of the fresh air sucked through is ensured, which leads to an additional heating of the fresh air.

Der O-Dichtungsring 28 besteht aus einem temperatur- und witterungsbeständigem Elastomer und sitzt in einer O-Ringnut außen auf dem Wärmeleitrohr 20. Durch seinen festen Sitz positioniert und arretiert er den Heizstab 18 mit dem Wärmeleitrohr 20 mittig in der Ummantelung 12 und dichtet den "Stic" in Richtung Nikotin-Aroma-Depot 16 ab.The O-ring seal 28 is made of a temperature and weather-resistant elastomer and sits in an O-ring groove on the outside of the heat pipe 20. Due to its tight position, it positions and locks the heating element 18 to the heat pipe 20 in the middle of the sheath 12 and seals the "Stic" in the direction of Nicotine Aroma Depot 16.

Die für den "Stic" notwendige Zuführung von Energie erfolgt über eine Ladestation, die aus zwei Teilen besteht:

  • Ladeetui 30 (siehe Figur 7)
  • Netzadapter (nicht gezeigt)
The supply of energy necessary for the "Stic" takes place via a charging station, which consists of two parts:
  • Charging case 30 (see FIG. 7 )
  • AC adapter (not shown)

Das Ladeetui 30 besteht aus sieben Komponenten, namentlich Etuideckel, Etuiboden, Abdeckung, Lichtleiter, Batteriefachdeckel und dem Akku 32 und Elektronik.The loading case 30 consists of seven components, namely Etuideckel, Etuiboden, cover, light guide, battery compartment cover and the battery 32 and electronics.

Das Ladeetui 30 speichert in einem wieder aufladbaren Akku 32 die zum Aufheizen des Heizstabes 18 erforderliche elektrische Energie. Die Abgabe der Energie an den Heizstab 18 erfolgt über eine Aufnahme im Etui 30, die an eine elektronische Steuerung angeschlossen ist. Über einen Lichtleiter, der den Farbwechsel von der LED-Anzeige veranschaulicht, wird dem Konsumenten angezeigt, dass die erfindungsgemäße Zigarette 10 betriebsbereit ist.The charging case 30 stores in a rechargeable battery 32 for heating the heating element 18 required electrical energy. The delivery of energy to the heating element 18 via a receptacle in the case 30, which is connected to an electronic control. Via a light guide, which illustrates the color change of the LED display, the consumer is indicated that the cigarette 10 according to the invention is ready for use.

Die neuen und erfinderischen Merkmale der Zigarette 10 oder dgl. und des Sets liegen im Vergleich zum Stand der Technik in folgenden Eigenschaften:

  • Diffusionssperre 17 für das Nikotin-Aroma-Depot 16
  • luftdichte Verbindung zwischen "Nic" und "Stic"
  • Luftströmungskanäle 21, 22 im Wärmeleitrohr 20
  • Beheizung des Depots 16 von innen und außen
  • rosettenförmige Geometrie im Mundstück 14 Erfindungsgemäß verbindet die Diffusionssperre 17 des Nikotin-Aroma-Depots 16, dass Nikotin und Aromastoffe in benachbarte Materialien abwandern. Mit der Ummantelung 17 des Depots 16 wird der radial gerichteten Abwanderung der Wirkstoffe entgegen gewirkt.
The new and inventive features of the cigarette 10 or the like and the set are compared to the prior art in the following properties:
  • Diffusion barrier 17 for nicotine aroma depot 16
  • Airtight connection between "Nic" and "Stic"
  • Air flow channels 21, 22 in the heat pipe 20
  • Heating of the depot 16 from inside and outside
  • rosette-shaped geometry in the mouthpiece 14 According to the invention, the diffusion barrier 17 of the nicotine aroma depot 16 connects nicotine and flavorings to neighboring materials. With the sheath 17 of the depot 16 of the radially directed migration of the active ingredients is counteracted.

Es dürfte einleuchten, dass die erzielte dichte Verbindung zwischen "Nic" und "Stic" wichtig ist, damit der beim Ziehen der Luft entstehende Unterdruck, die Luft nur durch die vorgesehene Konstruktion zieht. Somit können die beabsichtigten Mengen an durch Wärme freigesetztem Nikotin-und Aromastoffen gewährleistet werden. Versuche haben gezeigt, dass bei Depotmengen von ca. 1,7-1,9 mg Nikotin und Aromastoffen eine Freisetzung von 0,12-0,16 mg erzielt werden konnte, was gegenüber dem Stand der Technik eine Erhöhung um 2 Größenordnungen darstellt.It will be appreciated that the tight connection between "Nic" and "Stic" is important so that the negative pressure created when the air is drawn, only draws air through the intended construction. Thus, the intended amounts of heat-released nicotine and flavorings can be ensured. Experiments have shown that with depot amounts of about 1.7-1.9 mg of nicotine and flavorings, a release of 0.12-0.16 mg could be achieved, which represents an increase of 2 orders of magnitude compared to the prior art.

Die erfindungsgemäße Lösung beruht einerseits auf der Elastizität und der Geometrie des "Nic", und der Geometrie der Ummantelung 12 zur Aufnahme des "Nics", welcher über einen Konus in der Ummantelung 12 in den "Stic" eingeführt wird. Durch den Konus wird das Mundstück 14 des "Nics" zusammengedrückt und dichtet auf diese Weise die erfindungsgemäße Zigarette ab.The solution according to the invention is based on the one hand on the elasticity and the geometry of the "Nic", and the geometry of the sheath 12 for receiving the "nics", which is introduced via a cone in the sheath 12 in the "Stic". Through the cone, the mouthpiece 14 of the "nics" is compressed and seals in this way the cigarette of the invention.

Zum Freisetzen der Nikotin- und Aromastoffe hat die Depotbeheizung drei wesentliche Grundbedingungen zu erfüllen:

  • Einbringung der benötigten thermischen Energie
  • Direkte Außenheizung und indirekte, oder direkte Innenbeheizung, um eine Freisetzung von Aroma und Nikotin zu erreichen.
To release the nicotine and aroma substances, the depot heating has to fulfill three basic basic conditions:
  • Incorporation of the required thermal energy
  • Direct external heating and indirect or direct internal heating to achieve a release of aroma and nicotine.

Die Zuführung der Energie in den Heizstab 18 ist in Mindestumfang (4.5 W) und Dauer (ca. 0.5 min.) so ausgelegt, dass die zur Freisetzung des Nikotins erforderliche Endtemperatur von mindestens 65°C erreicht und die für die normalerweise getätigten Rauchzüge erforderliche Wärmekapazität vorgehalten wird.The supply of energy in the heating element 18 is designed in minimum (4.5 W) and duration (about 0.5 min.) So that the release of nicotine required final temperature of at least 65 ° C and the heat capacity required for the normally performed flues is held up.

Erfindungsgemäß wird mit dem Einsatz des Wärmeleitrohres 20 eine optimale Einbringung der Wärmeenergie und damit eine effektive Überführung der im Nikotin-Aroma-Depot eingebrachten Wirkstoffe ermöglicht. Das Depot 16 wird durch die Wärmeübertragung des Wärmeleitrohres 20 aus dem Heizstab 18, am Aussenumfang erhitzt. Durch diese Erwärmung des Depots 16 am Aussenumfang wird ein Teil des Nikotins in demselben freigesetzt.According to the invention, with the use of the heat pipe 20, an optimal introduction of the heat energy and thus an effective transfer of introduced in the nicotine aroma depot active ingredients allows. The depot 16 is heated by the heat transfer of the heat pipe 20 from the heating element 18, on the outer circumference. Due to this heating of the depot 16 on the outer circumference, a part of the nicotine is released in the same.

Eine zusätzliche Heizquelle bildet die erwärmte Luft, die durch die konstruktionsbedingte Auslegung des Wärmeleitrohres 20 entsteht. Die Frischluft wird durch beispielsweise drei Einlassöffnungen in den Innenraum des "Stic" eingesaugt. Das kleine Volumen an erwärmter Luft wird nun zwischen Heizstab 18 und Wärmeleitrohr 20 mit einer hohen Strömungsgeschwindigkeit hindurchgezogen, wodurch eine turbulente Strömung entsteht. Die turbulente Frischluft wird durch die erhitzten Körper (Wärmeleitrohr & Heizstab) und durch die Friktionswirkung der dafür ausgelegten Luftkanäle 21, 22 erwärmt.An additional heat source forms the heated air, which is caused by the design-related design of the heat pipe 20. The fresh air is sucked through, for example, three inlet openings in the interior of the "Stic". The small volume of heated air is now drawn between the heating rod 18 and heat pipe 20 at a high flow rate, creating a turbulent flow. The turbulent fresh air is heated by the heated body (heat pipe & heating rod) and by the friction effect of the air ducts 21, 22 designed for this purpose.

Die erwärmte Luft strömt (beim Rauchakt) durch das Depot 16, wo sie einen wesentlichen Beitrag zum Freisetzen von Nikotin hat.The heated air flows (during the smoke act) through the depot 16, where it has a significant contribution to the release of nicotine.

Durch die von außen einwirkende Wärme und die erwärmte Luftströmung, werden die Wirkstoffe im Luftstrom transportiert und aerosol- oder gasförmig in die Mundhöhle überführt.Due to the externally applied heat and the heated air flow, the active ingredients are transported in the air stream and transferred aerosol or gaseous into the oral cavity.

Claims (10)

Rauchfreie Zigarette (10), Zigarillo, Zigarre oder dgl. umfassend mehrere Teile: ein wieder verwendbarem Teil mit einer Thermo-Kunststoff-Ummantelung (12), einer oder mehrerer Lufteinlassöffnungen und einer elektrisch anschließbaren Heizquelle, und ein ggf. wieder verwendbares, austauschbares Mundstück (14), sowie ein austauschbares, nicht wieder verwendbares Nikotin-Aroma-Depot (16), wobei die durch die Heizquelle freigesetzte Wärme, die vom Konsumenten durch die Luftströmungskanäle angesaugte Luft erwärmt und so das im Depot (16) befindliche Nikotin und die Aromastoffe freisetzt, die vom Raucher aufgenommen werden, dadurch gekennzeichnet, dass das Depot (16) teilweise vom Mundstück (14) form- und/oder kraftschlüssig aufgenommen und mit einer Diffusionssperre (17) ummantelt ist, und dass die Heizquelle in Form eines zentrisch angeordneten Heizstabes (18) vorgesehen ist, welcher ganz oder teilweise von einem Wärmeleitrohr (20) derart umgeben ist, dass mindestens ein axial verlaufender Luftströmungskanal (21,22) zwischen Heizstab (18) und Wärmeleitrohr (20) angeordnet ist, wobei letzteres mit seinem am Mundstück (14) angrenzenden hinteren Ende teilweise das Depot (16) umschließt und mindestens eine Lufteintrittsöffnung an seiner Vorderseite aufweist. Smoke-free cigarette (10), cigarillo, cigar or the like comprising several parts: a reusable member having a thermal plastic sheath (12), one or more air inlet ports and an electrically connectable heat source, and an optionally reusable replaceable mouthpiece (14), and an exchangeable, non-reusable nicotine aroma depot (16), wherein the heat released by the heating source heats the air sucked in by the consumer through the air flow channels, thus releasing the nicotine present in the depot (16) and the flavors taken up by the smoker, characterized in that the depot (16) partially form-fitting and / or positively received by the mouthpiece (14) and coated with a diffusion barrier (17), and that the heating source is provided in the form of a centrally arranged heating element (18), which wholly or partially of a Wärmeleitrohr (20) is surrounded such that at least one axially extending air flow channel (21,22) between the heating element (18) and heat pipe (20) is arranged, the latter with its mouthpiece (14) adjacent rear end partially depot (16) encloses and has at least one air inlet opening at its front. Rauchfreie Zigarette nach Anspruch 1, dadurch gekennzeichnet, dass das Mundstück (14) Filterfasern aus Zelluloseacetat und/oder Polyethylen umfasst oder aus einem festen oder geschäumten Kunststoff besteht, und dass das Depot (16) Filterfasern aus Zelluloseacetat und/oder Polyethylen umfasst, und dass die Diffusionssperre (17) aus Polypropylen und/oder Aluminiumfolie und das Wärmeleitrohr (20) aus einem Aluminiumrohr besteht.Smoke-free cigarette according to claim 1, characterized in that the mouthpiece (14) comprises filter fibers of cellulose acetate and / or polyethylene or consists of a solid or foamed plastic, and that the Depot (16) comprises filter fibers of cellulose acetate and / or polyethylene, and that the diffusion barrier (17) made of polypropylene and / or aluminum foil and the heat pipe (20) consists of an aluminum tube. Rauchfreie Zigarette nach Anspruch 1 und 2, dadurch gekennzeichnet, dass das Wärmeleitrohr (20) im Querschnitt ein oder mehrere Vorsprünge oder Ausbauchungen (24,25) besitzt, der bzw. die an der Thermo-Ummantelung (12) anliegen und das Wärmeleitrohr (20) am Heizstab (18) eng anliegend festklemmen, wobei unterhalb der Ausbauchung(en) (24,25) der mindestens eine Luftströmungskanal (21,22) ausgebildet ist.Smoke-free cigarette according to claim 1 and 2, characterized in that the heat pipe (20) in cross-section one or more projections or bulges (24,25) which abut or against the thermal jacket (12) and the heat pipe (20 ) tightly clamped to the heating element (18), wherein below the bulge (s) (24,25) of at least one air flow channel (21,22) is formed. Rauchfreie Zigarette nach einem oder mehreren der vorstehenden Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Mundstück (14) einen im Querschnitt rosettenförmigen und axial verlaufenden durchgängigen oder nicht-durchgängigen Kanal (26) zur form- und/oder kraftschlüssigen Aufnahme des Depots (16) besitzt.Smoke-free cigarette according to one or more of the preceding claims 1 to 3, characterized in that the mouthpiece (14) has a cross-sectionally rosette-shaped and axially extending continuous or non-continuous channel (26) for the positive and / or non-positive reception of the depot (16 ) owns. Rauchfreie Zigarette nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass am Wärmeleitrohr (20) ein O-förmiger Distanz- und Dichtungsring (28) positioniert ist, der den Heizstab (18) mit dem Wärmeleitrohr (20) mittig in der Ummantelung (12) arretiert und Luftströmungen zwischen Thermoummantelung (12) und Wärmeleitrohr (20) unterbindet.Smoke-free cigarette according to Claims 1 to 4, characterized in that an O-shaped spacer and sealing ring (28) is positioned on the heat conducting tube (20), which holds the heating rod (18) centered in the casing (12) with the heat conducting tube (20). locked and air flows between the thermocouple (12) and heat pipe (20) prevented. Rauchfreie Zigarette nach Anspruch 1 bis 5, dadurch gekennzeichnet, dass der Heizstab (18) aus einem gewickelten Kupferdraht besteht, der in eine stangenförmige Keramik eingegossen ist.Smoke-free cigarette according to claim 1 to 5, characterized in that the heating rod (18) consists of a wound copper wire which is cast in a rod-shaped ceramic. Rauchfreie Zigarette nach Anspruch 1, dadurch gekennzeichnet, dass Nikotin und die Aromastoffe in getrennten Depots eingebracht sind.Smoke-free cigarette according to claim 1, characterized in that nicotine and the flavorings are introduced in separate depots. Rauchfreie Zigarette nach Anspruch 1 bis 7, dadurch gekennzeichnet, dass der Heizstab (18) einen Dornfortsatz besitzt, der als direkte Innenbeheizung in das Depot (16) hineinragt.Smoke-free cigarette according to claim 1 to 7, characterized in that the heating rod (18) has a spinous process, which projects as a direct internal heating in the depot (16). Rauchfreie Zigarette nach Anspruch 1 bis 8, dadurch gekennzeichnet, dass der wieder verwendbare Teil mit dem nicht wieder verwendbaren Teil durch einen Dreh-, Pass- oder Schnappverschluss verbindbar ist.Smoke-free cigarette according to claims 1 to 8, characterized in that the reusable part with the non-reusable part by a turning, pass or snap closure is connectable. Set mit einer rauchfreien Zigarette, Zigarillo, Zigarre oder dgl. nach einem oder mehreren der vorstehenden Ansprüche mit einem Ladeetui (30), vorzugsweise in zigarettenschachtelähnlicher Form, wobei das Ladeetui (30) eine integrierte Elektronik mit Akku (32) und Steuerung zur Übertragung der elektrischen Energie zur Erwärmung des Heizstabes (18) besitzt, wobei vorzugsweise Aufnahmeplätze (34,35) für mindestens einen Teil der rauchfreien Zigarette (10), Zigarillo, Zigarre und dgl. vorgesehen sind.Set with a smoke-free cigarette, cigarillo, cigar or the like. According to one or more of the preceding claims with a charging case (30), preferably in cigarette box-like form, wherein the charging case (30) has an integrated electronics with battery (32) and control for transmitting the electrical energy for heating the heating rod (18), preferably receiving seats (34,35) for at least a portion of the smoke-free cigarette (10), cigarillo, cigar and the like. Are provided.
EP07001135A 2007-01-19 2007-01-19 Smoke-free cigarette, cigarillo, cigar or similar Not-in-force EP1946659B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT07001135T ATE418276T1 (en) 2007-01-19 2007-01-19 SMOKELESS CIGARETTE, CIGARILLO, CIGAR OR THE LIKE.
EP07001135A EP1946659B1 (en) 2007-01-19 2007-01-19 Smoke-free cigarette, cigarillo, cigar or similar
DE502007000333T DE502007000333D1 (en) 2007-01-19 2007-01-19 Smoke-free cigarette, cigarillo, cigar or the like
PCT/EP2008/050455 WO2008087161A1 (en) 2007-01-19 2008-01-16 Smoke-free cigarette, cigarillo, cigar, or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07001135A EP1946659B1 (en) 2007-01-19 2007-01-19 Smoke-free cigarette, cigarillo, cigar or similar

Publications (2)

Publication Number Publication Date
EP1946659A1 true EP1946659A1 (en) 2008-07-23
EP1946659B1 EP1946659B1 (en) 2008-12-24

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EP (1) EP1946659B1 (en)
AT (1) ATE418276T1 (en)
DE (1) DE502007000333D1 (en)
WO (1) WO2008087161A1 (en)

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WO2011010334A1 (en) * 2009-07-21 2011-01-27 Rml S.R.L. Electronic cigarette with atomizer incorporated in the false filter
WO2015180073A1 (en) * 2014-05-28 2015-12-03 瑞吉高新科技股份有限公司 Electronic cigarette
WO2016202033A1 (en) * 2015-06-17 2016-12-22 深圳市新宜康科技有限公司 Top gas-intake electronic cigarette atomizing apparatus
US11930839B1 (en) 2023-02-07 2024-03-19 Dimitry Boss Cigarette loading machines and method therefore

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UA113744C2 (en) * 2011-12-08 2017-03-10 DEVICE FOR FORMATION OF AEROSOL WITH INTERNAL HEATER
US10980273B2 (en) 2013-11-12 2021-04-20 VMR Products, LLC Vaporizer, charger and methods of use
CN112155255A (en) 2014-12-05 2021-01-01 尤尔实验室有限公司 Corrective dose control
MX2017007750A (en) * 2014-12-15 2017-09-05 Philip Morris Products Sa Handheld aerosol-generating device and cartridge for use with such a device.
GB201501060D0 (en) 2015-01-22 2015-03-11 Nicoventures Holdings Ltd Vapour provision system and cartridge therefor
GB201605102D0 (en) 2016-03-24 2016-05-11 Nicoventures Holdings Ltd Mechanical connector for electronic vapour provision system

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
WO2011010334A1 (en) * 2009-07-21 2011-01-27 Rml S.R.L. Electronic cigarette with atomizer incorporated in the false filter
WO2015180073A1 (en) * 2014-05-28 2015-12-03 瑞吉高新科技股份有限公司 Electronic cigarette
WO2016202033A1 (en) * 2015-06-17 2016-12-22 深圳市新宜康科技有限公司 Top gas-intake electronic cigarette atomizing apparatus
US11930839B1 (en) 2023-02-07 2024-03-19 Dimitry Boss Cigarette loading machines and method therefore

Also Published As

Publication number Publication date
EP1946659B1 (en) 2008-12-24
DE502007000333D1 (en) 2009-02-05
WO2008087161A1 (en) 2008-07-24
ATE418276T1 (en) 2009-01-15

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