• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    SIMULATED CIGARETTE A simulated cigarette having a generally cylindrical cigarette-type housing (1) with a main geometric axis, the housing containing a reservoir (4) of a pressurized inhalable composition. The reservoir (4) has a reservoir outlet at one end that is selectively closed by an outlet valve (5). The simulated cigarette further comprises a tube (20) with a through hole (21) extending along a substantial portion of the reservoir (4) from the vicinity of the reservoir outlet such that the composition flows into a bore entrance tube and along the tube hole to the outlet of the reservoir. The tube inlet end is retained so that the geometrical axis passes through the inlet end such that the tube hole inlet is positioned axially in the central 50% of the reservoir volume.
    公开号:BR112015024366B1
    申请号:R112015024366-5
    申请日:2014-03-25
    公开日:2021-03-02
    发明作者:Alex Hearn；Khine Zaw Nyein；Ritika Gupta；Rene Mauricio Gonzalez Campos
    申请人:Kind Consumer Limited；
    IPC主号:
    专利说明:

    [001] The present invention relates to a simulated cigarette having a generally cylindrical cigarette-type housing with a main geometric axis, the housing containing a reservoir of a pressurized inhalable composition extending over a substantial portion of the housing, the reservoir having a reservoir outlet at one end which is selectively closed by an outlet valve, the outlet valve being operable to allow the composition to flow from a reservoir outlet to an inhalation outlet at the outlet end of the device. Such a simulated cigarette will subsequently be referred to as "of the type described".
    [002] A simulated cigarette of the type described is described in WO / 2011107737. This document requires a wick charge of a substantial portion of the reservoir to ensure that the proper composition is provided for the outlet of the reservoir when the outlet valve is opened.
    [003] It was found, however, that the wick actually removes nicotine from the composition in a way that provides an inconsistent dosage.
    [004] Another simulated cigarette of the type described is described in DE4030257. An example in this document describes a tube extending a short distance from the outlet end of the reservoir. The tube is flexible and has a weight at its inlet end so that it is weighed towards the bottom face of the reservoir, whatever its orientation. Such an arrangement is designed to allow as much composition as possible to be inhaled through the reservoir. However, a problem with this design is that the amount of the composition that is available to the user will depend on the orientation of the cigarette. If the cigarette is used in the horizontal configuration, most of the composition can be inhaled. However, the most common form of inhaling a cigarette is a "tip down" configuration in which the cigarette's inhalation end is above the opposite end. In such an orientation, somewhere around half the composition cannot be inhaled. Therefore, for each cigarette use, there will be a great variation in the amount of composition inhaled by the user, depending on the orientation. High dose variation is not desirable from a regulatory point of view, and for the user, as they do not have a good idea of the amount of nicotine they have inhaled.
    [005] According to the present invention, a simulated cigarette of the type described, comprises a tube with a through hole extending along a substantial portion of the reservoir from the vicinity of the reservoir outlet so that the composition flows in. from the tube hole inlet and along the tube hole to the outlet of the reservoir, a tube inlet end being retained so that the geometry axis passes through the inlet end and such that the tube hole inlet is positioned axially in the central 50% of the reservoir volume.
    [006] The volume of the reservoir is the free space inside the reservoir, that is, the total volume that can be occupied by the composition. This volume excludes any internal characteristics within the reservoir as well as the pipe wall. It does, however, include the volume of the pipe bore. This volume can either be determined by calculating the volume of various components (that is, the internal volume of the reservoir housing minus the volume of any internal components), or it can be determined by the complete loading of the reservoir with a liquid and the measurement of the volume of liquid required to do this (for example, determining the increase in mass). By charging the reservoir with 50% of its volume and orienting the simulated cigarette with its vertical geometric axis, the midpoint of the volume can be determined. This can be repeated with a volume of liquid that is 25% greater and 25% less respectively than 50% of the aforementioned volume. These two levels determine the central 50% of the reservoir volume as defined above. Alternatively, these positions can be calculated based on the volumes of the components.
    [007] Providing the tube hole inlet radially towards the center of the reservoir, in a central portion of the volume in the axial direction, the tube hole inlet is in a position in which it is in the vicinity of the centroid of a body of liquid loading the tank so that, whatever the orientation of the cigarette, approximately 50% of the liquid can be dispensed.
    [008] Thus, it can be seen that the approach used is different from the approach in DE4030257, in which the objective is to maximize the uniformity of the dosage, not to maximize the total quantity of the dosage. This is achieved by retaining the inlet end of the tube in a central region of the reservoir, instead of having a flexible tube that is always requested in the direction of the lowest position.
    [009] Preferably, the tube hole inlet is positioned at the central 30% and more preferably at the central 20% of the reservoir volume as it further reduces the variation.
    [0010] As the tube hole inlet is in the central region of the reservoir as defined above, it is preferably at half the extreme volume from the outlet. The limits of 50%, 30% and 20% above allow the inlet to be 25%, 15% and 10% respectively from the center of the reservoir. Given the desire to have the inlet towards the end opposite the outlet end, the preferred range may be lower in the direction of the outlet than at the opposite end. For example, it may be preferred to have the inlet with 15% of the volume center towards the outlet end and 25% of the volume towards the opposite end. This allows a larger volume to be inhaled in the most common "tip down" configuration, but is still close enough to the center that undue dose variation is avoided.
    [0011] The tube inlet can be held in place by the tube being rigid enough that it can support itself with the tube hole inlet in the defined position. Preferably, however, the tube is a flexible tube and a support is provided to hold the inlet end in position.
    [0012] The support preferably has an external diameter that can form an interference fit with an internal wall of the reservoir. The support preferably has a hollow tapered end facing the inlet end of the tube to guide the inlet end into position. This allows for a simple assembly process as the tube can be pushed into the reservoir, so that it engages with the inner wall of the reservoir adjacent to the outlet of the reservoir or the outlet valve itself. The support can then be snapped in place so that the tapered end portion takes the inlet end and guides it towards the central region.
    [0013] The simulated cigarette can be a single use device. However, the reservoir is refillable and has a refill valve at one refill end opposite the outlet end. In this case, the tube support is preferably integrated with a refill valve housing. This helps to reduce the number of components in the simulated cigarette.
    [0014] The outlet valve can be operated manually, but it is preferably a valve operated by breathing. The outlet valve is preferably closed as requested by a resilient member and is supported by a flexible diaphragm, and an air flow path is provided through the cigarette such that suction at the outlet end causes the air flow to create a enough diagram pressure to lift the outlet valve against the action of the resilient member and open the outlet valve.
    The inhalable composition preferably comprises nicotine and propellant.
    [0016] The tube is preferably relatively long and extends for at least 60% of the length of the cigarette. The hole is preferably less than 1 mm. Tubes with at least a portion of different internal diameters can be used to vary the dosage that the cigarette is capable of dispensing.
    [0017] Previously, the dosage was varied by varying the size of an outlet orifice downstream of the outlet valve, but this also changes the particle size. Using the bore to control the dosage, this can be done without compromising the particle size.
    [0018] An example of a simulated cigarette according to the present invention will now be described with reference to the accompanying drawings, in which:
    [0019] Figure 1 is an axial cross section through the simulated cigarette;
    [0020] Figure 2 is a view similar to Figure 1 in an "upside down" configuration;
    [0021] Figure 3 is a view similar to Figures 1 and 2 in a "tip-up" configuration;
    [0022] Figure 4 is an axial cross section showing the direct hand portion of Figure 1 in more detail; and
    [0023] Figure 5 is an end view of the tube support.
    [0024] The basic arrangement of the simulated cigarette is as described in WO2011 / 107737. Thus, the simulated cigarette has a generally cylindrical shape and is approximately the size of the cigarette. It has a housing 1 with an outlet end 2 and a refill end 3 with a reservoir 4 taking up most of the internal space. At the outlet end 2 is an outlet valve 5 with a valve element 6 in the form of a tooth which compresses a resilient tube 7 to close the tube. The outlet valve 5 further comprises a reed that cooperates with a diaphragm 8 to open the valve element 6 against the action of the spring 9 when a user sucks at the outlet end 2 as described in WO2011 / 107737 and in more detail in WO2014 / 033438 .
    [0025] At the opposite end of the reservoir 4 is the load valve element 10 which is essentially a check valve that can be opened against the action of a second spring 11. This is the subject of copending order 1305486.1. The second spring 11 and the refill valve element 10 are retained in a cage 12 that has a number of openings 13 so that the center space of the cage 13 forms part of the reservoir 4.
    [0026] Also inside the reservoir 4 is a flexible tube 20 with an internal hole 21. The hole 21 has an outlet 22 located adjacent to the end of the resilient tube 7 and can be placed against or is sealed on the wall 23 of the reservoir 23 in the vicinity from the outlet end so that the composition can only reach outlet valve 5 via hole 21. As is apparent from the drawings, it may be either the side wall or the end wall of the tube 20 that seals the wall 23 of the reservoir or the end of tube 7, but both are preferable. It will also be apparent from the drawings that the right hand side of the resilient tube 7 between the valve element 6 and the tube 20 is also part of the reservoir.
    [0027] At the inlet end 25 of the tube 20, the hole 21 has an inlet 26 which is supported by a support 30 so that the inlet end 25, and preferably the inlet 26 of the tube 21 is on the main geometric axis X of the housing 1 as shown in Figure 4.
    [0028] The holder 30 makes contact with the valve cage 12 at the end of the holder 30 closest to the refill end 3. The holder 30 and the valve cage 12 can be made as a single component. At the opposite end, the support 30 has a conical face 31 facing towards the outlet end 2. The outer diameter 32 of this end corresponding to the inner diameter of the reservoir 4 at this point, so that the support 30 is an interference fit within the reservoir 4. Four openings 34 as shown in Figure 5 allow the liquid in the reservoir to pass freely through the support 30 to gain access to the inlet 26.
    [0029] To mount the cigarette, the tube 20 is inserted into the reservoir 4 until it reaches the position shown in Fig. 1, in which the outlet 22 seals the wall 23. The support 30 is then inserted from the same end and conical face 31 takes the inlet end 25 and guides it into the central region as shown in the drawings. The conical region 31 extends into the cylindrical region 35 which holds the inlet end 25 of the tube 20 in the central region. The end of the tube may be hermetically secured in this position, or it may be free to move a small amount that is irrelevant to its ability to function. Even if they are hermetically secured, the openings 34 allow the liquid in the reservoir to reach the inlet 26 of the hole 21.
    [0030] It will be appreciated from the drawings and the explanation above that the shape of reservoir 4 is complex. The right hand portion has a generally cylindrical configuration occupying most of the diameter of the device while the left hand portion of the reservoir can only be the inner hole 21 of the tube, or there can be a portion of the reservoir on one side of this tube.
    [0031] Furthermore, in the right hand portion, the volume of the reservoir is reduced by the inlet end portion of the tube 20, the support 30, the valve cage 12, the second spring 11 and the portion of the valve element of refill 10 that is inside the reservoir. Thus, while the volume of reservoir 4 can be determined by measuring these components, it may be simpler to determine this experimentally.
    [0032] The operation of the device will now be described with reference to Figs. 1 to 3.
    [0033] When a user sucks the outlet end 2, the outlet valve 5 opens, as previously described. As long as the inlet 26 of hole 21 is below the level L of the liquid in the reservoir, the liquid progresses through hole 21 and will be atomized downstream of the outlet valve element 6 to create an inhalation plumage. Figs. 1 to 3 show the centroid C of a body of liquid carrying reservoir 4. Inlet 26 of hole 21 is in the vicinity of the centroid. In this specific example shown in Fig. 1, it is displaced by 1.3 mm from the centroid C towards the refill end 3. In the horizontal orientation shown in Fig. 1, all the liquid above the L level which represents approximately 50 % of the total liquid in the reservoir can be inhaled by the cigarette. When the cigarette is in the "upside down" configuration shown in Fig. 2, as the inlet 26 is moved from the centroid C as described above, slightly more liquid is available than in Fig. 1. Conversely, in tip-up configuration, slightly less liquid is available for inhalation. In a different arrangement, entry 26 is in centroid C, so that there is essentially no variation in dispensing between the three positions. The current preference is for a slight displacement of the inlet 26 towards the refill end from the centroid C as shown, as this causes slightly more liquid to be dispensed in the most common tip-down orientation.
    [0034] Once the cigarette reaches the liquid level position L shown in Figs. 1 to 3 with the reservoir approximately half full, no additional liquid can be inhaled and the cigarette is then refilled via the refill valve 10.
    权利要求:
    Claims (13)
    [0001]
    1. Simulated cigarette, having a generally cylindrical cigarette type housing (1) with a main geometric axis (x), the housing (1) containing a reservoir (4) of a pressurized inhalable composition extending over a substantial portion of the housing (1), the reservoir (4) has a reservoir outlet at one end (2) which is selectively closed by an outlet valve (5), the outlet valve (5) being operable to allow the composition to flow through from the reservoir outlet to an inhalation outlet at the outlet end (2) of the device; wherein the simulated cigarette further comprises a tube (20) with a through hole (21) extending over a substantial portion of the reservoir (4) from the vicinity of the reservoir outlet so that the composition flows into a tube bore inlet (26) and along the tube bore (21) for the reservoir outlet, a tube inlet end (25) being retained so that the main geometrical axis (x) passes through the end of inlet (25), characterized by the fact that the inlet end (25) is retained and thus, the tube bore inlet (26) is positioned axially in the central 50% of the reservoir volume (4).
    [0002]
    2. Simulated cigarette according to claim 1, characterized by the fact that the tube hole inlet (26) is positioned in the central 30% and preferably in the central 20% of the reservoir volume (4).
    [0003]
    Simulated cigarette according to either of claims 1 or 2, characterized in that the pipe bore inlet (26) is at half the extreme volume of the outlet.
    [0004]
    4. Simulated cigarette according to any one of the preceding claims, characterized in that the tube (20) is a flexible tube and a support (30) is provided to hold the inlet end (25) in position.
    [0005]
    5. Simulated cigarette according to claim 4, characterized by the fact that the support (30) has an external diameter that can form an interference fit with an internal wall of the reservoir (4).
    [0006]
    Simulated cigarette according to either of claims 4 or 5, characterized in that the support (30) preferably has a hollow conical end (31) facing the inlet end of the tube to guide the inlet end (25) in position.
    [0007]
    Simulated cigarette according to any one of the preceding claims, characterized by the fact that the reservoir (7) is refillable and has a refill valve (10) at one refill end opposite the outlet end (2).
    [0008]
    Simulated cigarette according to any one of claims 4 to 7, characterized in that the support (30) is integrated with a refill valve housing (12).
    [0009]
    Simulated cigarette according to any one of the preceding claims, characterized by the fact that the outlet valve (5) is a breathing operated valve.
    [0010]
    10. Simulated cigarette according to claim 9, characterized by the fact that the outlet valve (5) is closed in a requested way by a resilient member (9) and is supported by a flexible diaphragm (8), and a path of air flow is provided through the cigarette such that suction at the outlet end (2) causes the air flow to create a pressure in the diagram (8) sufficient to lift the outlet valve (5) against the action of the resilient member ( 9) and open the outlet valve (5).
    [0011]
    11. Simulated cigarette according to any of the preceding claims, characterized by the fact that the inhalable composition comprises nicotine and a propellant.
    [0012]
    Simulated cigarette according to any one of the preceding claims, characterized by the fact that the tube (20) extends for at least 60% of the length of the cigarette.
    [0013]
    13. Simulated cigarette according to any of the preceding claims, characterized by the fact that the internal diameter of the hole is less than 1 mm.
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    法律状态:
    2018-11-13| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-12-10| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-12-29| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-03-02| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 25/03/2014, OBSERVADAS AS CONDICOES LEGAIS. |
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    GB1305494.5A|GB2512329B|2013-03-26|2013-03-26|A Simulated Cigarette|
    GB1305494.5|2013-03-26|
    PCT/GB2014/050939|WO2014155093A1|2013-03-26|2014-03-25|A simulated cigarette|
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