WO2022101854A1 - Vaporisateur et capsule électronique à double dispositif de chauffage - Google Patents

Vaporisateur et capsule électronique à double dispositif de chauffage Download PDF

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Publication number
WO2022101854A1
WO2022101854A1 PCT/IB2021/060523 IB2021060523W WO2022101854A1 WO 2022101854 A1 WO2022101854 A1 WO 2022101854A1 IB 2021060523 W IB2021060523 W IB 2021060523W WO 2022101854 A1 WO2022101854 A1 WO 2022101854A1
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WO
WIPO (PCT)
Prior art keywords
capsule
vaporizer
heater
mouthpiece
heat exchanger
Prior art date
Application number
PCT/IB2021/060523
Other languages
English (en)
Inventor
Shlomo Hillel
David Cohen
Arye Weigensberg
Boris BESSAARABOV
Shmuel GAVRIELOV
Michael Nikolaevsky
Original Assignee
Cronos Group Inc.
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 Cronos Group Inc. filed Critical Cronos Group Inc.
Publication of WO2022101854A1 publication Critical patent/WO2022101854A1/fr

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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
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46—Shape or structure of electric heating means
    • 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
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A24F40/485—Valves; Apertures

Definitions

  • the invention relates to vaporizers, and more particularly a compact vaporizer that uses conduction and convection to heat a plant material, such as cannabis plant, tobacco plant, or other vaporizable herbs or chemicals therein.
  • Vaporizers have become incredibly popular in recent years as an alternative to traditional cigarettes, pipes, and other smoking products that combust the consumable for inhalation. Vaporizers use a wide variety of consumables — from liquids to waxes to plant material. Modem vaporizers are portable, reusable, flexible in terms of the different consumables and flavors, and increasingly affordable. Portable vaporizers typically include a battery and a cartridge with vaporizable oils. However, the vaporizer space is still evolving almost daily as a result of technology and manufacturing, and changes in consumer demand.
  • vaporizer user demand has shifted toward and increased for such products.
  • the demands and function of cannabis (and other plant product consumable) vaporizers are different than those of vaporizers that use, e.g., liquids bearing nicotine salts or cannabinoid oils.
  • Portable cannabis vaporizers typically have a “bowl” containing the consumable.
  • the bowl When heated by conduction, the bowl has a quick preheat cycle but imposes a significant temperature gradient whereby the herb or consumable becomes very hot at portions in contact with the bowl while layers toward the center of the bowl (i.e., not in contact with its walls) are cooler.
  • the result is that the outer layer begins to bum or combust before inner portions release their vaporizable materials, including cannabinoids, terpenes, and other materials in the cannabis.
  • the user toward the end of the session, the user must either discard un-vaporized cannabis plant, or continue vaping at the expense of inhaling unpleasant and in some cases toxic fumes resulting from charring of exterior consumable layers.
  • Convection heating in portable vaporizers tries to overcome the drawbacks of conduction heating, by providing a more uniform heat delivery throughout the bowl. While this provides more uniformity in heating the entire consumable portion of plant material, this requires a long preheat cycle because heat exchangers large enough to store sufficient energy to heat repeated draws often require heating times longer than one minute. If the heat exchanger is not properly preheated or cooled during use, the “puff” is not warm enough to maintain consistent concentration of cannabinoids or other consumables in the vapor.
  • a compact vaporizer comprises a housing having a first end and a second end.
  • the compact vaporizer also comprises an air inlet configured to draw ambient air based on suction applied to an outlet of the compact vaporizer.
  • the air inlet may be disposed toward the first end of the housing, or the second end of the housing.
  • the compact vaporizer also comprises an ambient air path within the housing in fluid communication with their air inlet and a heat exchanger in fluid communication with the ambient air path, wherein the heat exchanger defines a convection path.
  • the compact vaporizer also comprises a capsule chamber configured to accept a capsule, wherein the capsule chamber is in fluid communication with the heat exchanger and the outlet.
  • the compact vaporizer also comprises a heater in thermal communication with the heat exchanger, wherein the heater extends into the capsule chamber.
  • the heater may be configured to heat ambient air to heat a material in the capsule to form a vapor.
  • the material may be uniform in consistency and density.
  • the compact vaporizer may have a mouthpiece attached to the vaporizer at the first end of the housing body, where the mouthpiece is in fluid communication with the outlet, and where the mouthpiece includes a mouthpiece outlet in fluid communication with the suction.
  • the compact vaporizer may have a cooling structure within the mouthpiece that is in fluid communication with the outlet, where the cooling structure may define a cooling path for a vapor.
  • the cooling structure may have two or more cooling ribs.
  • the cooling path may follow a serpentine based on an arrangement of the ribs.
  • the compact vaporizer may include a bore of the mouthpiece in fluid communication with the outlet.
  • the compact vaporizer may include an air gap between the outlet and the bore; and a seal fluidly isolating the air gap from the ambient air path.
  • the compact vaporizer may include two or more heating ribs that define the convection path.
  • the heater may be a rod.
  • the rod may pass through a portion of the heat exchanger.
  • the compact vaporizer may include a heating element of the rod disposed toward the second end of the housing.
  • the compact vaporizer may include a circuit configured to control actuation of the heater.
  • the compact vaporizer may include a thermocouple configured to provide temperature feedback to the circuit.
  • the circuit may be configured to actuate the heater to perform a preheat cycle to bring the heater to a temperature.
  • the temperature may be a temperature for heating the capsule and a thermal mass of the heat exchanger.
  • the circuit may be configured to enable an indicator when the heater reaches the temperature.
  • the compact vaporizer may include an air sensor, where the air sensor may be configured to provide suction feedback to the circuit, and where the circuit may be configured to actuate the heater in response to the suction feedback.
  • the compact vaporizer may include a diverted air inlet in fluid communication with the outlet. The diverted air inlet may be provided within a mouthpiece.
  • the compact vaporizer may include an inlet adjustment mechanism, which may be configured to regulate RTD through the diverted air inlet.
  • the diverted air inlet may be a regulated orifice, and the inlet adjustment mechanism may be a movable cover.
  • the movable adjustment band may define at least two holes of at least two different diameters.
  • the movable cover may be configured to regulate RTD via rotation of the movable cover about a mouthpiece.
  • the movable cover may be operatively coupled with the mouthpiece via a supporter defined by the mouthpiece
  • the inlet adjustment mechanism may be configured to regulate at least one of RTD, temperature, or potency of a puff.
  • the compact vaporizer may include an insulating cavity, which may be adjacent to at least a portion of the heat exchanger.
  • the heat exchanger may be a helical heat exchanger.
  • a capsule for a compact vaporizer comprises a capsule body defining a reservoir configured to hold a consumable material and a capsule base including one or more inlets in fluid communication with the reservoir.
  • the capsule also comprises a capsule cover including one or more outlets in fluid communication with the reservoir and a hollow pillar extending from the capsule base, wherein the hollow pillar is configured to accept a heater of a vaporizer.
  • the capsule body may be cylindrical.
  • the pillar may be formed of a thermally conductive material.
  • the capsule body may be formed of a thermally conductive material.
  • the capsule cover may include a flange extending beyond the dimensions of the capsule body.
  • the capsule may include one or more inlets configured to receive heated air from a heat exchanger.
  • At least a portion of the capsule base may be configured to be in contact with a heat exchanger.
  • the capsule may be configured to be removably installed in a vaporizer.
  • the capsule base and capsule body may be of unitary construction.
  • the capsule base and capsule cover may be of unitary construction.
  • the one or more inlets may be smaller than a consumable material size of the consumable material.
  • the one or more outlets may be smaller than a consumable material size of the consumable material.
  • the capsule may be operably coupled to a filter.
  • the capsule may include a seal covering the one or more outlets.
  • the seal may be removable.
  • the seal may be broken when the capsule is installed to the vaporizer.
  • the capsule may include a filter covering the one or more outlets.
  • the capsule cover may be removable.
  • a method for using a compact vaporizer includes providing a vaporizer device having a housing.
  • the method also includes drawing ambient air through an air inlet of the housing into an ambient air path within the housing, where the ambient air drawn through the ambient air path cools an outer surface of the housing.
  • the method also includes actuating a heater based on the drawing of the ambient air.
  • the method also includes heating, by the heater, a capsule in thermal communication with the heater.
  • the method also includes heating, by the heater, the heat exchanger in thermal communication with the heater.
  • the method also includes drawing ambient air from the ambient air path into the heat exchanger in thermal communication with a heater.
  • the method also includes drawing heated air from the heat exchanger into the capsule.
  • the method also includes drawing a vapor from the capsule to an outlet.
  • the method may include preheating the heater before drawing ambient air through the air inlet.
  • the method may include receiving temperature feedback from a thermocouple of the heater. The preheating may continue until the temperature feedback indicates a preset temperature.
  • the method may include actuating an indicator when the preheating is complete.
  • the method may include drawing diverted air through a diverted air inlet. The diverted air inlet may be in fluid communication with the outlet.
  • the method may include installing the capsule into the housing. The capsule may surround a portion of the heater.
  • a method for using a compact vaporizer includes actuating a heater in thermal communication with a heat exchanger and a capsule containing a consumable material; heating, by the heater, the heat exchanger; heating, by the heater, the consumable material within the capsule; and drawing heated air from the heat exchanger through the capsule, where the heated air from the heat exchanger and heat from the heater aerosolize a portion of the consumable material.
  • the method may include heating the air in an ambient air path upstream of the heat exchanger.
  • the method may include heating the air in the heat exchanger to form a heated air.
  • the heat exchanger may be in thermal communication with a capsule.
  • the method may include drawing diverted air through a diverted air inlet.
  • the diverted air inlet may be in fluid communication with an outlet of the capsule.
  • the method may include changing an RTD of the diverted air inlet using an inlet adjustment mechanism operatively coupled with the diverted air inlet. Actuating the heater may be performed in response to detecting suction. Actuating the heater may be performed in response to a preheating process.
  • a method for vaporizing a consumable includes providing a capsule having one or more inlets and one or more outlets, where the capsule contains the consumable; arranging the capsule in a housing of a vaporizer; heating the consumable by conduction using a heater of the vaporizer disposed at least in part within the capsule; and heating the consumable by convection using heated air from a heat exchanger, where the heat exchanger is in thermal communication with the heater.
  • the method may include drawing ambient air into an inlet of the vaporizer, where the air may be provided to the heat exchanger to provide the heated air. The ambient air may be heated in an ambient air path of the vaporizer.
  • the method may include providing at least an aerosolized form of a portion of the consumable through an outlet of the capsule.
  • the method may include drawing diverted air through a diverted air inlet, where the diverted air inlet is in fluid communication with the outlet.
  • the method may include changing an RTD of the diverted air inlet using an inlet adjustment mechanism operatively coupled with the diverted air inlet.
  • the method may include opening a seal of the capsule. The seal may cover at least one of the one or more inlets and the one or more outlets. Arranging the capsule in the housing of the vaporizer may open the seal.
  • a mouthpiece for a vaporizer comprises a mating portion configured to attach to an outlet end of a vaporizer device, a bore configured to receive an aerosolized portion of a consumable from an outlet of the vaporizer device, a cooling structure defining a consumption path of the aerosolized portion of the consumable, and a mouthpiece outlet disposed distal to the mating portion.
  • the mouthpiece may include a seal disposed within the mating portion, the seal fluidly isolating the bore from a portion of the vaporizer device.
  • the cooling structure may be a heat sink.
  • the mouthpiece may include a diverted air inlet in fluid communication with the bore.
  • the mouthpiece may include an inlet adjustment mechanism operatively coupled with the diverted air inlet. The inlet adjustment mechanism may change RTD through the diverted air inlet.
  • a method for using a mouthpiece includes drawing an aerosolized portion of a consumable through a bore of the mouthpiece, where the bore is in fluid communication with an outlet of a vaporizer; drawing the aerosolized portion of the consumable through a cooling structure of the mouthpiece, and providing the aerosolized portion of the consumable through a mouthpiece outlet.
  • the method may include attaching a mating portion of the mouthpiece to the vaporizer.
  • the method may include fluidly sealing the mating portion of the mouthpiece using a seal disposed within the mating portion of the mouthpiece.
  • the diverted air inlet may be in fluid communication with the bore.
  • the method may include changing RTD through the diverted air inlet using an inlet adjustment mechanism.
  • a method for using a vaporizer comprises providing a vaporizer device having a housing and drawing air through an air inlet of the housing into an ambient air path within the housing, wherein air drawn through the ambient air path cools an outer surface of the housing.
  • the method also comprises actuating a heater based on the drawing of air and heating, by the heater, a capsule in thermal communication with the heater.
  • the method also comprises heating, by the heater, the heat exchanger in thermal communication with the heater and drawing air from the ambient air path into the heat exchanger in thermal communication with a heater.
  • the method also comprises drawing air from the heat exchanger into the capsule and drawing air from the capsule to an outlet.
  • a method for using a vaporizer comprises actuating a heater in thermal communication with a heat exchanger and a capsule containing a consumable material and heating, by the heater, the heat exchanger.
  • the method also comprises heating, by the heater, the consumable material within the capsule and drawing air from the heat exchanger through the capsule, wherein heated air from the heat exchanger and heat from the heater aerosolize a portion of the consumable material.
  • a method for using a capsule comprises providing a capsule having one or more inlets and one or more outlets, wherein the capsule contains the consumable and arranging the capsule in a housing of a vaporizer.
  • the method also includes heating the consumable by conduction using a heater of the vaporizer disposed at least in part within the capsule and heating the consumable by convection using heated air from a heat exchanger, wherein the heat exchanger is in thermal communication with the heater.
  • a method for using a vaporizer mouthpiece comprises drawing an aerosolized portion of a consumable through a bore of the mouthpiece, wherein the bore is in fluid communication with an outlet of a vaporizer.
  • the method also comprises drawing the aerosolized portion of the consumable through a cooling structure of the mouthpiece and providing the aerosolized portion of the consumable through a mouthpiece outlet.
  • FIG. 1A and FIG. IB illustrate cross-sectional cutaway views of an example vaporizer in accordance with embodiments disclosed herein;
  • FIG. 2 illustrates a cross-sectional cutaway view of an example capsule in accordance with embodiments disclosed herein;
  • FIG. 3 illustrates a cross-sectional cutaway view of an example cooling structure inside a mouthpiece in accordance with embodiments disclosed herein;
  • FIG. 4A and FIG. 4B illustrate portions of an example vaporizer in accordance with embodiments disclosed herein.
  • FIG. 5A, FIG. 5B, and FIG. 5C illustrate an alternative example vaporizer in accordance with embodiments disclosed herein;
  • FIG. 6A and FIG. 6B, FIG. 6C, and FIG. 6D illustrate portions of an example vaporizer in accordance with embodiments disclosed herein.
  • FIG. 7A, FIG. 7B, and FIG. 7C illustrate views of a vaporizer device disclosed herein.
  • FIG. 8A, FIG. 8B, and FIG. 8C illustrate views of a capsule disclosed herein.
  • FIG. 9 illustrates a flow diagram for a method of using a vaporizer in accordance with embodiments of the techniques disclosed herein;
  • FIG. 10 illustrates a flow diagram for a method of heating or preheating a vaporizer in accordance with embodiments of the techniques disclosed herein;
  • FIG. 11 illustrates a flow diagram for a method of using a capsule in accordance with embodiments of the techniques disclosed herein.
  • FIG. 12 illustrates a flow diagram for a method of using a mouthpiece in accordance with embodiments of the techniques disclosed herein.
  • FIG. 13A, FIG. 13B, and FIG. 13C illustrate test results based at least in part on devices disclosed herein.
  • Systems and methods herein concern dual heater vaporizers combining both conduction and convection heating, as well as capsules configured to deliver a uniform experience.
  • Compact electronic vaporizers are disclosed that are configured to utilize conduction and convection heating to enable a fast-preheating mode and provide uniform heat throughout a capsule containing a consumable.
  • Vaporizers herein produce consistent temperature profiles for vapor or gas exiting the devices throughout a puff.
  • Vaporizers herein are also electrically efficient and have a compact construction and form factor, that allows one to fit it into a pocket, such as a shirt or pants pocket, making it ultra-portable.
  • the housing of the vaporizer (such as the housing 102 in FIG 1A, and shown more fully in FIGS.
  • the 7A-7C may have a height (from the first end to the second end of the housing) of about 60-100 mm, and more preferably, about 80 mm.
  • the width of the housing may be about 37-57 mm, and more preferably, about 47 mm.
  • the thickness of the housing may be about 21-31 mm, and more preferably, about 26 mm.
  • the protrusion of the vaporizer which includes, the stackable heat exchanger, the rod heater, the capsule changer, the capsule, and the mouthpiece, may add about an additional 75 mm to the height of the housing.
  • the vaporizer is designed such that most of the housing can fit comfortably in the palm of a typical user, with fingers wrapped around most of the housing’s circumference.
  • the ultra-portableness of the vaporizers disclosed herein are due, at least in part, to the spaceefficient heating of consumables using both conduction and convention heating.
  • the capsule containing the consumable may be smaller in size than conventional capsules due to the efficient heating mechanisms employed, thus allowing for a smaller vaporizer.
  • the vaporizer’s compact size it also has the advantage of being light in weight.
  • the capsules disclosed herein may experience a more even and less sever temperature gradient than capsules in conventional vaporizers such that the user gets a better yield of the consumable and/or does not experience possibly toxic fumes resulting from charring of consumables within the capsule.
  • dual heater electronic vaporizers comprise a heater, which may be constructed as a rod or elongate component, disposed within a housing.
  • the heater may be disposed at the center or offset.
  • a capsule containing a consumable is configured to be installed over and/or around the heater such that it surrounds at least a portion of the heater.
  • the capsule is also in fluid communication with an air path from an inlet to an outlet passing through a heat exchanger. The heater pre-heats the capsule and heat exchanger by conduction.
  • a “consumable” can be any material or substance of which a portion may be aerosolized, vaporized, or otherwise transported as or in heated air or gas when subjected to heat and airflow.
  • Embodiments herein specifically contemplate cannabinoid-containing or terpene-containing consumable, which can take a variety of forms including leaf, flower, stem or other plant part cut or ground to one or more consistencies or piece sizes.
  • Consumables may be various plants or portions thereof, subject to various curing, drying, treatment, and cutting or grinding.
  • Consumables may also be other solids such as granules, pellets, wax (which may be chipped or pelletized), et cetera, that may or may not include at least a portion of a cannabinoid product.
  • Consumables can be liquids, including but not limited to oils, which can be stored in a pod suitable for containing the fluid, or which can be maintained in an absorptive material.
  • Consumables may include additives, such as flavors, processing aids, carriers, enzymes, et cetera.
  • Consumables may be provided in one or more concentrations, and may be provided at certain densities and/or capacities.
  • the “consumable” may also be a naturally occurring constituent of a medicinal plant that has a medically-accepted therapeutic effect.
  • the medicinal plant may be a Cannabis plant, and the compound may be a cannabinoid.
  • Cannabinoids interact with receptors in the body to produce a wide range of effects.
  • the fibrous material may include the leaf and/or flower material from one or more species of Cannabis plants such as Cannabis sativa, Cannabis indica, and Cannabis ruderalis. In some instances, the fibrous material is a mixture of Cannabis sativa, Cannabis indica, and Cannabis ruderalis.
  • the consumable may be 60-80% Cannabis sativa and 20-40% Cannabis indica, may be 40%-60% Cannabis sativa and 40% to 60% Cannabis indica.
  • cannabinoids examples include tetrahydrocannabinolic acid (THCA), tetrahydrocannabinol (THC), cannabidiolic acid (CBDA), cannabidiol (CBD), cannabinol (CBN), cannabicyclol (CBL), cannabichromene (CBC), and cannabigerol (CBG).
  • THCA tetrahydrocannabinolic acid
  • THC cannabidiolic acid
  • CBD cannabidiol
  • CBD cannabidiol
  • CBD cannabigerol
  • CBD cannabidiolic acid
  • CBD cannabidiol
  • Tetrahydrocannabinolic acid (THCA) and cannabidiolic acid (CBDA) may be converted to tetrahydrocannabinol (THC) and cannabidiol (CBD), respectively, via heating.
  • heat may cause decarboxylation so as to convert the tetrahydrocannabinolic acid (THCA) in the capsule to tetrahydrocannabinol (THC), and/or to convert the cannabidiolic acid (CBDA) in the capsule to cannabidiol (CBD).
  • THCA tetrahydrocannabinolic acid
  • THC tetrahydrocannabinol
  • the decarboxylation and resulting conversion will cause a decrease in tetrahydrocannabinolic acid (THCA) and an increase in tetrahydrocannabinol (THC).
  • CBD cannabidiolic acid
  • CBD cannabidiol
  • multiple consumable types can be combined.
  • tobacco or other vaporizable herbs can be combined with a plant bearing cannabinoids to develop a blended consumable.
  • Other opportunities for blending similar or dissimilar consumables to complement or modify the experience using the consumable will be understood based on review of this disclosure.
  • a “capsule” is a structure configured to store and vaporize a consumable.
  • the term capsule may, but need not, be used interchangeably with terms such as cups, pods, cartridges, packet, et cetera.
  • a “draw” or “puff’ is a cycle of use whereby suction provided by a user draws air through a vaporizer and/or capsule. Air is drawn into the vaporizer and heated, uptakes vaporized or aerosolized matter, and is drawn out of the vaporizer with the vaporized or aerosolized matter. The pressure (or air speed), time, volume, and other parameters can vary based on the user and usage.
  • a user with a larger lung capacity may draw more air, or draw air faster, with a single puff than a user with a smaller lung capacity; or a user may intentionally draw shallower or partial breathes when “vaping.”
  • Design parameters of vaporizers can be developed to ensure effective use across a range of draws regardless of how fast or long air is drawn.
  • upstream is used to indicate a direction opposite air flow when suction is applied to an outlet or mouthpiece, i. e. , toward a fresh air inlet.
  • Downstream indicates the direction of air flow through a device toward an outlet for consumption when suction is applied to an outlet or mouthpiece.
  • Spatially relative terms such as “beneath”, “below”, “lower”, “above”, “upper”, and the like, may be used herein for ease of description to describe one element or feature’s relationship to another element(s) or feature (s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
  • first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments.
  • the term "and/or,” includes any and all combinations of one or more of the associated listed items. The phrase “at least one of’ has the same meaning as “and/or.” Further, although the terms first, second, etc.
  • FIGS. 1A and IB illustrate an example vaporizer 100 disclosed herein.
  • the vaporizer includes a housing 102 having a first end (disposed toward mouthpiece 140) and a second end (disposed toward circuitry 160 or thereunder).
  • the housing 102 can have an annular cross-section, or in alternative embodiments, any other shape suitable for holding and the positioning of components of vaporizer 100 therein.
  • the housing 102 or other portions of the vaporizer may have a small form factor, heating elements and the battery required to power the heating elements may be small at least in part due to the efficiencies yielded by the vaporizer discussed herein.
  • Housing 102 can be formed of any suitable material, including but not limited to metals and polymers. In embodiments, housing 102 can be formed of multiple parts (e.g., not manufactured as a unitary structure) made of different materials.
  • Vaporizer 100 includes an air inlet 104 disposed toward the first end of the housing configured to draw ambient air based on suction applied to an outlet of the vaporizer or mouthpiece outlet 152.
  • the air inlet 104 may alternatively be located in mouthpiece 140, or at a junction or site disposed between the mouthpiece 140 and the housing 102. Air is drawn into the air inlet 104 during use when the user puffs or sucks on an outlet or mouthpiece 140.
  • Portions of housing 102 define an ambient air path 106 in fluid communication with their air inlet 104. The ambient air path 106 can travel from the first end toward the second end of the housing 102.
  • the ambient air traveling through ambient air path 106 can both begin heating based on contact with surfaces heated through use of the device, and also draws heat away from the housing 102, thereby ensuring comfortable and safe use of the vaporizer 100.
  • the ambient air path 106 is in fluid communication with the heat exchanger 118.
  • a cartridge may be disposed at the bottom of the vaporizer 100, and air inlet 104 can be positioned at the top of the vaporizer 100.
  • Ambient air path 106 in such embodiments, may extend through the entire length of the vaporizer 100 thereby cooling the device.
  • the return path to the mouthpiece can be longer and travel through the air-cooled device, which may, in embodiments, obviate the need for a cooling structure in the mouthpiece.
  • air inlet 104 is adjustable using an inlet adjustment mechanism operatively coupled to the diverted air inlet that is configured to restrict or permit more or less air from passing, or open or close, thereby changing resistance-to-draw (“RTD”).
  • RTD resistance-to-draw
  • the air inlet 104 can be fixed in size and sized according to the length of the path traveled by air before exiting an outlet, thereby providing a desired RTD.
  • air inlet 104 does not include any inlet adjustment mechanism.
  • a desired RTD may be 60- 100mm water gauge (“mmWG”), or any other number above or below those values. RTD may also be varied by modifying the length or cross-section of an air path, e.g.
  • Vaporizer 100 also includes a heat exchanger 118 (or multiple heat exchangers) in fluid communication with the ambient air path.
  • the heat exchanger defines convection path 116 through which air passes when the user draws on vaporizer 100.
  • Heat exchanger in embodiments, can be formed of layers (e.g., one or more) of structural ribs or discs that define a maze path or serpentine whereby air traveling through (e.g., around the diameter, radially out then back toward the center, other directions as defined by the serpentine) must come in proximity to the heated surfaces of the serpentine for an elongated distance to reach a desired convection temperature range.
  • the discs or ribs occlude a portion, but not all, of the cross-section of the heat exchanger 118, with cutouts or smaller dimensions in the cross-sectional plane to allow air drawn to pass to a next layer or level.
  • the heat exchanger 118 can be formed of a metal, such as aluminum, or other heat transferring materials.
  • the heat exchanger 118 can provide for different materials, geometries, and functional arrangements.
  • the heat exchanger 118 can be formed of graphite, and may include a coating with a high convective heat transfer coefficient.
  • heat exchanger 118 can be formed of ceramic.
  • surfaces of the heat exchanger 118 can be roughed or grooved to increase air turbulence there about and heat transfer by way of increased surface area.
  • an additional or separate heating source can be provided within the heat exchanger 118.
  • the heat exchanger 118 can be formed of a conductive lattice with holes that heat when electricity passes through such holes.
  • the heat exchanger 118 can have a honeycomb geometry.
  • the path 116 can narrow as it nears the capsule chamber 110 to convey as much heat as possible to the air drawn in (before it contacts the consumable) from portions of the heat exchanger 118 and/or the heater 130 that are better insulated or less exposed to lower temperature air.
  • ribs or discs or components can be “flat” (e.g., large dimension substantially perpendicular to walls of housing across) or angled (e.g., a “ramp”-like maze.) Ribs or discs or components may be flat, angled, or varying in cross-section/height.
  • Housing 102 also defines a capsule chamber 110 configured to accept a capsule 120 containing a consumable (e.g. , herb or product thereof) for vaporization or aerosolization.
  • the capsule chamber 110 is in fluid communication with the heat exchanger 118 and an outlet or a fluid path exiting the capsule 120. Particularly, air travels through the heat exchanger 118 into the capsule 120 when the user draws on the vaporizer 100, thereby heating the consumable in capsule reservoir 124 by convection.
  • Vaporizer 100 also includes a heater 130 in thermal communication with the heat exchanger 118 and, when installed, capsule 120.
  • the heater 130 may be formed as a rod or elongated member.
  • the heater 130 is partially disposed within heat exchanger 118 (or between two or more heat exchangers). Beyond the heat exchanger 118 and toward the first end of the vaporizer 100, the heater 130 extends into the capsule chamber 110.
  • the heater is configured to heat both the heat exchanger 118 and the capsule 120 (and, through the capsule 120, the consumable therein) by conduction.
  • the heat exchanger 118 can be located immediately below the capsule chamber 110. Heat travels radially outward from the heater 130 when energized.
  • Heat also travels inward from the heated structure defining the capsule 120, the various portions of which are heated at least in part by way of conduction with heater 130.
  • This outward propagation of heat improves alternatives where heating elements are provided at an outer edge or only along one surface: less heat is wasted by conduction with components lacking contact with the consumable; less heat is radiated from the exterior of the device (thereby keeping device temperature down for safe use as well); faster temperature climb of the consumable; and more of the heat is delivered to the consumable, and particularly the center of the consumable, thereby reducing a volume of consumable that must be heated before heat reaches the entire consumable volume and avoiding burning at the edges before the center is heated. Less overall power is required through this efficiency, reducing battery draw.
  • Heater 130 can be formed of metal, ceramic, polymers, or combinations thereof.
  • the diameter (or, for embodiments not including a round cross-section, other dimensions) of the heater 130 may vary in relation to the dimensions of the vaporizer 100 or other components. Further, the heater 130 may extend more into the heat exchanger 118 or the capsule chamber 110 more or less than illustrated. For example, in an alternative, the heater 130 may be wider but shorter, presenting a different surface area for contact with the capsule 120 that does not extend as far into the capsule chamber 110 and/or the heat exchanger 118 as illustrated. In embodiments, the heater 130 need not be of continuous cross-section through its length, and may vary in shape at different positions within the housing 102. In a non-limiting example, the heater 130 may be wider or narrower in the heat exchanger than it is in the capsule chamber. In this manner, fast-heating and efficient combinations of geometries can be provided to support the heating of consumables by the different conduction and convection processes.
  • an alternative heater may be provided according to different geometries or arrangements.
  • a heater may be provided around some or all of a cartridge or capsule.
  • a heater may be provided within the walls of the cartridge.
  • an optional insulating cavity may be provided in the housing to retain the heat generated by the heat exchanger and to keep the outside of the vaporizer cool to the touch by the users.
  • the insulating cavity may be an air pocket between layers of the housing, such that the layers of the housing define a space filled with air (or another appropriate insulating substance that is a poor conductor of heat (e.g., an aerogel) to avoid the transfer of heat from an inside layer to an outside layer of the housing.
  • insulating cavity 412 can be airtight with the space therebetween comprising a vacuum (or near- vacuum).
  • the insulating cavity can be provided running along at least a portion of the device in the vicinity of heat exchanger 118 and/or the capsule chamber 110. At least a portion of the insulating cavity may be adjacent to at least a portion of the heat exchanger 118, such as half or nearly all of the entire heat exchanger 118. Additionally or alternatively, at least a portion of the insulating cavity 412 may be adjacent to at least a portion of the capsule chamber 110, such as half or nearly all of the entire capsule chamber 110.
  • the mouthpiece 140 couples with the housing 102.
  • the space between the two is sealed with seal 150, and between the mouthpiece 140 and housing 102 (or capsule 120) defines an air gap 108 into which heated air bearing at least a portion of the consumable is vented before being drawn into bore 148.
  • the bore 148 is in fluid communication with the mouthpiece outlet 152, distal thereto.
  • Mouthpiece can include a cooling structure 142 defining an aerosol path 144 through which aerosolized or vaporized consumable passes after being drawn through bore 148.
  • Mouthpiece can include, in embodiments, a diverted air inlet 146 in fluid communication with the mouthpiece outlet 152 that mixes ambient air with air bearing vaporized or aerosolized portions of the consumable.
  • the air may be mixed in various ratios or amounts continuously or in a dynamic fashion over a period of time based on user preference or operation of the device. This both cools the air and changes the concentration of consumable in heated air being received from mouthpiece outlet 152.
  • the diverted air inlet 146 may be located in the mouthpiece 140, in the housing 102, and/or at a junction therebetween when attached. In embodiments, diverted air inlet 146 feeds into or is located immediately downstream of air gap 108 in order to increase the mixing time for diverted ambient air and heated air bearing at least a portion of the consumable from capsule 120.
  • diverted air inlet 146 is adjustable using an inlet adjustment mechanism operatively coupled to the diverted air inlet that is configured to restrict or permit more or less air from passing, or open or close, to allow for warmer or cooler, and more or less concentrated, air to be delivered through mouthpiece outlet 152.
  • the inlet adjustment mechanism is configured to regulate RTD (which is inversely proportional to an amount of air drawn) through the diverted air inlet.
  • RTD which is inversely proportional to an amount of air drawn
  • a user can control the temperature or potency of one or more puffs by adjusting the inlet adjustment mechanism. Specific mixture ratios of diverted air and aerosol bearing air can be achieved in this manner.
  • the inlet adjustment mechanism can be a movable cover, such as a movable orifice adjustment band that contains, around its circumference, a variety of differently sized or shaped holes.
  • the band may form a complete circle or circular shape.
  • the band may form an arc (less than a complete circle or circular shape).
  • Diverted air inlet 146 provides a pre-set orifice at the device inlet and a pre-set orifice at the diverted air inlet to achieve a set desired aerosol temperature to the mouth with that device; and provides to a user the ability to adjust the aerosol temp that reaches their mouth. If a user desires a hotter aerosol, they can increase the ratio of aerosol to diverted air, and vice versa.
  • Different embodiments for adjusting the ratio of aerosol to diverted air can include, but are not limited to, selecting between holes of different sizes using a rotating or displaceable restriction component, or multiple removable components; controlling airflow through the capsule or cartridge in addition to controlling diverted airflow; a mechanical air valve for diverted air such as a dial that regulates hole size; an electronic valve or shutter that utilizes circuitry, logic, or software with feedback from a temperature sensor to control airflow at diverted air inlet and/or at inlet to device; a carburetor-type device to achieve a predetermined ratio of aerosol to diverted air; et cetera.
  • the capsule 120 is arranged in capsule chamber 110 and over heater 130 for use.
  • the capsule 120 includes reservoir 124 for holding the consumable.
  • Capsule 120 includes a pillar 126 extending into reservoir 124 to fit over the heater.
  • the opening that accepts the heater 130 can extend all the way through the capsule 120 so that the capsule will be shaped like a washer or “donut” with a hollow core that is capped with a flat cap.
  • Capsule 120 defines a portion of the path between inlet 104 and an outlet (e.g. , mouthpiece outlet 152) by including air permeable portions on its base (e.g., bottom) and cover (e.g., top).
  • capsule inlet holes 122 and capsule outlet holes (or air exit holes) 128 allow heated air to heat the consumable by convection and carry vaporized or aerosolized portions of the consumable out of the capsule 120 for consumption by a user.
  • the capsule 120 may include a flavor pouch (not pictured) configured to add a particular flavor to the consumable within the capsule 120.
  • the flavor pouch may be within the capsule 120, such as towards the exit holes 128. Additionally or alternatively, the flavor pouch may be adjacent to the capsule 120, such as within the air gap 108 between the cooling structure 142 and air exit holes 128.
  • vaporized or aerosolized portions of the consumable may pass through the flavor pouch that adds a flavor to the consumable.
  • the flavor may be, for example, pineapple, mango, or any other flavor desired by a user.
  • heater 130 can include a thermocouple 132 or other device for collecting temperature or other feedback.
  • the thermocouple 132 can be located anywhere along the length or otherwise within the heater, and in alternative embodiments may be located outside the heater 130 (elsewhere in or on the housing 102).
  • the thermocouple 132 (or other elements) can interact with circuitry 160. While circuitry 160 includes wires or electrical connections for carrying power between a battery and heater 130, circuitry 160 can also provide a link between thermocouple 132 (or other elements) to receive feedback.
  • Circuitry 160 can include logic for processing the feedback to actuate, idle, or change power amounts to or from heater 130 to control the temperature of heater 130, a consumable in capsule 120, and/or any other element of vaporizer 100, capsule 120, and/or mouthpiece 140. In this manner, the heater 130 can be controlled to perform heating cycles that appropriately heat the thermal mass(es) of the capsule 120 and the heat exchanger 118.
  • Circuitry 160 can also include user controls (e.g., on-off switches, buttons, dials, toggles, et cetera, to energize or de-energize vaporizer 100) and/or indicators (e.g., lights, speakers, et cetera, to indicate device state to a user).
  • circuitry 160 can also receive information from an air flow sensor, which can be a user control.
  • An air flow sensor may be located at or near, e.g., the inlet 104, the mouthpiece outlet 152, the diverted air inlet 146 (in embodiments including diverted air inlet 146), or anywhere along internal air flow paths within the housing 102.
  • the circuitry 160 can turn on power and automatically regulate the inlet adjustment mechanism at the diverted air inlet 146 and/or at the ambient air inlet 104 to achieve a desired temperature or aerosol concentration.
  • a user may press a button or draw from a mouthpiece, thereby initiating a preheating cycle.
  • the preheating cycle begins by actuating the heater 130.
  • the circuitry 160 receives feedback from the thermocouple 132 to monitor the temperature increase and adjust power to the heater 130 as necessary to complete the preheating cycle.
  • the preheating cycle may be standardized or may vary based on the type of the capsule 120 or consumable therein provided.
  • circuitry 160 can detect a capsule or consumable type; in alternative or complementary embodiments, a user may use the user controls to select a consumable or capsule type, or set a specific temperature range for vaporization.
  • circuitry 160 may actuate an indicator to signal to the user that the vaporizer 100 is ready for use, at which point the user may begin drawing on the vaporizer to consume the consumable in the capsule 120.
  • the indicator may be actuated in a different matter (e.g., different light or combination of lights, different color light, separate or distinct visual or audible indications, haptic feedback by way of a vibration motor) when the user utilizes a control or to indicate an ongoing preheating or reheating cycle.
  • the circuitry 160 receives temperature feedback to maintain the temperature range for the consumable or to which the device is set.
  • the circuitry 160 may detect an idle time (e.g. , seconds without a puff) or use of a user control to de-energize the heater and shut down the device.
  • the circuitry 160 may also include safety mechanisms, such as a maximum temperature threshold (for the vaporizer 100, the consumable, the mouthpiece, et cetera), short circuit detection, drop detection, battery level, et cetera, to provide for a safety shut off even if no timeout or user action is detected.
  • the circuitry 160 may be a proportional-integral-derivative (PID) controller.
  • PID proportional-integral-derivative
  • the capsule 120 may include a memory or sensorthat indicates an amount of usage and/or consumable quantity or condition.
  • the memory or sensor can provide feedback to circuitry 160 in such embodiments, which can control the heater 130, or shut off the device, based on exhaustion or degradation of the consumable in capsule 120, or based on damage or degradation to capsule 120 itself.
  • an outlet or the mouthpiece 140 can include an aerosol quality sensorthat determines the quality or characteristics of the air bearing the vaporized consumable. Such qualities or characteristics can include detecting the presence of certain compounds, detecting a concentration of certain compounds, detecting a temperature of the air, et cetera.
  • the aerosol quality sensor can provide feedback to circuitry 160 in such embodiments, which can control the heater 130, or shut off the vaporizer 100, based on the presence or absence of compounds (e.g., desired or undesirable), concentrations of compounds falling above or below threshold levels, or a temperature falling outside a consumption range (e.g., too cold, too hot).
  • vaporizer 100 (and alternative embodiments disclosed herein) provide an energy efficient, compact, consistent vaping device and experience.
  • the temperature is kept consistent or within a consistent range throughout a puff, and subsequent puffs, through fast preheating (or reheating) and efficient heat transfer to the consumable through both conduction and convection.
  • FIG. 2 illustrates an example capsule 200 disclosed herein, which may be used with a device such as, e.g., the vaporizer 100.
  • the capsule 200 includes a capsule body 202, which is illustrated as but need not be substantially cylindrical.
  • the capsule body 202 is closed by a base 206 and a cover 208.
  • the base 206 is configured to be in fluid communication, and in some embodiments, thermal communication and/or physical contact, with a heat exchanger when the capsule 200 is in use.
  • the capsule 200 is configured to be removably installed into a vaporizer to use the consumable therein.
  • the capsule 200 can be formed of metal such as anodized aluminum, and can be manufactured through techniques such as, e.g., deep drawing.
  • a capsule 200 can be formed of graphite.
  • the capsule may be formed of materials that are recyclable.
  • the capsule may be formed of materials that are safe (including, but not limited to, food grade materials that do not give off or leach chemicals that can be carcinogenic or toxic, avoiding contamination to the consumable or the device itself).
  • a coating may be used on the inside of the capsule 200, the outside of the capsule 200, or portions or all of both, to enhance thermal conductivity to speed heating and cooling.
  • some or all of the capsule 200 may be formed of a rigid mesh or sachet (netting).
  • the capsule may be formed using 3-D printing methods with food grade polymers or materials.
  • each of the base 206 and the cover 208 may contain air permeable sections to allow air flow through the capsule body 202.
  • base 206 includes capsule inlet holes 214 and cover 208 includes capsule exit holes 216.
  • the capsule inlet holes 214 are configured to receive preheated air from a heat exchanger.
  • the base 206 of the capsule 200 may initially not have air inlet holes 214.
  • the heat exchanger may include a mechanism, such as a plurality of pins (not pictured) extending from a surface of the heat exchanger 118 toward the mouthpiece 140 such that the pins puncture the base 206 of the capsule 200 when the capsule 200 is placed in a capsule changer (such as the capsule changer 110 depicted in FIGS.
  • the pins may be hallowed, allowing heated air to pass from the heat exchanger 118, through the pins, into the capsule 200 to heat the consumable.
  • the newly formed air inlet holes may receive heated air from the heat exchanger (such as the heat exchanger 118 depicted in FIGS. 1A and IB) to form a vapor.
  • the capsule inlet holes 214 and capsule outlet holes 216 can be one or more holes or air permeable portions, and may be circular or any other shape. Where there are more than one of either inlet holes 214 or outlet holes 216, they may be arranged in any pattern on the base 206 or cover 208, e.g., in a circle, square, zig-zag or staggered pattern, random pattern, et cetera, and may be spread by any distance and located at any distance from the center, edge, or other portion of the base 206 and the cover 208.
  • the number, shape, and/or arrangement of the inlet holes 214 and the outlet holes 216 can be the same or different.
  • the arrangement may be deliberately varied to control resistance or potency, or ensure that air passing through the capsule 200 remain in contact with the consumable for a particular amount of time.
  • there may be more inlet holes 214 than outlet holes 216, inlet holes 214 may be larger or a different shape than outlet holes 216, and/or inlet holes 214 may be arranged about a portion of a heat exchanger while outlet holes 216 may be more widely spread across an area of the cover 208 within the edges of a seal configured to engage with the cover 208.
  • the inlet holes 214 and/or the outlet holes 216 may be sized to match a consumable, e.g., smaller than a grind, pellet, or consumable portion size to prevent solid portions of the consumable from passing through the inlet holes 214 and/or the outlet holes 216.
  • the capsule may be operably coupled to a filter, such as a mesh or other air permeable blocking material.
  • the inlet holes 214 and/or the outlet holes 216 may be covered at least in part by a filter, such as a mesh or other air permeable blocking material to prevent undesirable portions of the consumable from leaving the capsule 200.
  • a filter such as a mesh or other air permeable blocking material, may be integrated in another portion of a vaporizer such as the bottom or top of a capsule cavity to prevent contamination from consumable exiting the capsule 200. Additionally or alternatively, a filter may be integrated into the mouthpiece (such as mouthpiece 140 depicted in FIGS. 1A and IB) to prevent contamination and/or prevent particles from a consumable from entering the mouth of a user. In embodiments, a filter may be flavored or include other additives.
  • the inlet holes 214 and/or the outlet holes 216, or the air paths leading to or from such holes can increase air turbulence to encourage and increase the release of portions of consumables (e.g., active ingredients).
  • portions of consumables e.g., active ingredients.
  • Examples of how the turbulence of air flowing may be increased include, but are not limited to, adding additional inlet holes on the sides of the capsules; moving the inlet holes 214 to the sides of the capsule; providing one or more helical ribs inside the capsule along the inner wall, along the inner perimeter of the outer wall, and/or about the pillar 210; and providing a mechanism to vary RTD at inlets or channels on or in the device. By using a loose-packed consumable, turbulence may also be increased.
  • a smaller grind size also increases surface area, which may facilitate release of portions of components.
  • the use of or inclusion in the consumable particular structures (such as rods or empty prismatic frames) providing airways or breaking up a densely-packed consumable can also increase turbulence or airflow through a packed consumable.
  • the size of such structures or additional materials can be sized larger than the grind size in embodiments.
  • multiple grind sizes can be used for a consumable, and the grind sizes can be layered to increase turbulence.
  • layers of consumable can have different moisture content to increase release of portions of components.
  • surfaces within the capsule 200 can be grooved or “roughed” to increase air flow.
  • portions of consumables can be facilitated by providing additives including but not limited to cannabis oil, cannabis extract, propylene glycol, vegetable glycerin, et cetera, which become active when heated and enhance the release of active components from a consumable.
  • additives can be provided to lower the temperature at which portions of consumables are released.
  • layers of different types of consumables can be provided in the capsule 200 to facilitate release of components of a consumable.
  • a high temperature gradient can be provided between the air and consumable by pre-heating the air to a high temperature to increase the speed at which components of consumables are released.
  • a cover or capsule seal may be provided over one or both of the inlet holes 214 and/or the outlet holes 216.
  • the cover may provide an airtight seal to maintain the freshness of the consumable, as well as prevent spillage of the consumable and the entry of contaminants.
  • the cover may be removed before use or may be broken by the vaporizer or user on installation or use.
  • a capsule seal can be broken or perforated (such as by a set of pointed pins) when the capsule is installed to the vaporizer, either by user action or the vaporizer itself (e.g., when a mouthpiece is closed, when airflow begins).
  • a capsule seal can be one or more of an anodized or food grade film or foil.
  • the capsule seal can be a heat-resistant material.
  • the capsule seal can be covered on one or both sides with a coating such as a food grade coating.
  • the capsule reservoir 204 is defined by at least capsule body 202 and stores at least a consumable to be vaporized or aerosolized during use.
  • the consumable material can be of uniform consistency and density.
  • a consumable material can be uniformly ground, mixed, prepared, et cetera, and packed or filled to uniform density within capsule reservoir 204.
  • the capsule 204 can be pre-packed with the consumable.
  • one or more of the capsule base 206 and the capsule cover 208 can be removable to allow for reuse of the capsule 200.
  • the cover 208 can include a flange 218 extending beyond the edges of capsule body 202 and configured to fixedly position the capsule 200 in a vaporizer device, with the flange 218 arranged against a capsule chamber (such as capsule chamber 110) by interference due to the increased dimension, and then fluidly sealed to prevent loss of aerosolized or vaporized consumables passing through outlet holes 216, without occluding air outlet holes, by way of a seal (such as, e.g., the seal 150) configured to engage the flange 218.
  • the seal 150 also prevents vaporized consumables from escaping into the housing or air from elsewhere in the housing 102 (or ambient air) from being drawn into or mixing in the air gap 108.
  • a pillar 210 is configured to be arranged about a heater within a vaporizer device, i.e., position a heater in cavity 212. As illustrated, the pillar 210 can be concentric with or centered in the capsule reservoir 204. However, in alternative embodiments, pillar 210 may be off-center. Pillar 210 may be formed of a solid, fluid impermeable material that is thermally conductive, which may or may not be the same material as other portions of capsule 200, or a permeable or breathable material to facilitate further heat exchange (in which case one or more seals may be provided to prevent escape of vaporized consumables).
  • a capsule in another alternative embodiment, includes no pillar and a separate heater may be provided in capsule reservoir, with electrical contacts exposed on the exterior of the capsule to provide power to the internal heater.
  • one or more heat exchangers may be used to conduct electricity and include a contact for electrical communication (in addition to fluid communication) with the capsule, or separate electrical contacts may be provided.
  • the capsule 200 is constructed from two or more discrete parts, i. e. , one or both of the base 206 and the cover 208 are separately made and then joined with the capsule body 202.
  • the capsule 200 may be of unitary construction, e.g., formed as one monolithic structure.
  • one or both of the base 206 and the cover 208 are removable to allow reuse of the capsule 200 to replace or replenish a consumable therein.
  • FIG. 3 illustrates an example mouthpiece 300 disclosed herein, which may be used with vaporizer 100. While the term “mouthpiece 300” is used, it is understood that mouthpiece 300 may be alternatively described as a structure or shell that includes a cooling structure. Alternative mouthpieces can be formed of different geometries and exclude cooling structure 314 in embodiments where vapor temperature does not require cooling or cools in another manner (e.g., traveling the length of a vaporizer before being provided to the user in embodiments where the cartridge is located at the bottom of the vaporizer).
  • Mouthpiece 300 can attach to a first end of a device like the vaporizer 100, e.g., on an outlet side, and is in fluid communication with outlets from the device (or a container for consumables like the capsule 200 in the device).
  • a user applies suction to mouthpiece 300 to draw air; because mouthpiece 300 is sealed to and in fluid communication with, e.g., vaporizer 100, suction to mouthpiece 300 will draw air through the device to which mouthpiece 300 is attached.
  • Mouthpiece 300 comprises a body 302 and, closest to a device to which it attaches (e.g., the vaporizer 100) a mating portion 312 configured to connect with and fluidly seal to the device, by fitting around the outer dimensions of the vaporizing device or fitting within the inner dimensions of vaporizer, or connecting in another manner.
  • the mating portion 312 is configured to attach to an outlet end of a vaporizer device. Vapor or aerosol bearing a consumable is released from an outlet of the vaporizer device or capsule to coupling space 304 before passing, by user suction, through bore 306 into cooling structure 314 before passing through mouthpiece outlet 310.
  • the bore 306 is configured to receive at least an aerosolized portion of a consumable from an outlet of the vaporizer device.
  • a seal is disposed within the mating portion 312 to fluidly isolate the bore from another portion of a vaporizer device, or an external environment, thereby sealing the mouthpiece 300 against a vaporizing device to prevent the escape of vaporized consumable.
  • mouthpiece 300 can include a cooling structure 314 in fluid communication with the outlet 310.
  • the cooling structure 314 defines a cooling path (such as, but not limited to, the aerosol path 144) (or consumption path) and provides a heat sink for the air to exit the device at a comfortable temperature for the user after heating to temperatures sufficient to vaporize or aerosolize at least a portion of the consumable.
  • cooling structure 314 can in embodiments can be formed of layers (e.g., one or more) of structural ribs or discs that define a maze path or serpentine whereby air traveling through (e.g.
  • the discs or ribs occlude a portion, but not all, of the cross-section of the mouthpiece 300, with cutouts or smaller dimensions in the cross-sectional plane to allow air drawn to pass to a next layer or level.
  • the dimension of ribs or discs also varies based on the taper of mouthpiece 300 as it extends away from the first end of, e.g. , vaporizer 100.
  • cooling structure 314 With a layered orientation stacking the structural members from the bore 306 to mouthpiece outlet 310, it is understood that alternative arrangements (e.g. , rotating the configuration shown to cause airflow in other directions through the serpentine) can be utilized without departing from the scope or spirit of the innovation.
  • structural members of the cooling structure (and spaces therebetween) are shown as substantially uniform, it is understood the cooling structure 314 need not be symmetrical in any dimension. Such asymmetrical arrangements can be used to increase cooling speed or reduce temperature gradients. For example, thicker discs could be used toward the vaporizing device (e.g., vaporizer 100) as heat will be absorbed quickly by the flow of higher temperature air.
  • the path defined by the cooling structure can narrow as it nears the capsule chamber 110 to transfer as much heat as possible to the cooling structure 314 before reaching mouthpiece outlet 310.
  • ribs or discs or components can be “flat” (e.g., large dimension substantially perpendicular to walls of housing across) or angled (e.g., a “ramp”-like maze.) Ribs or discs or components may be flat, angled, or varying in cross-section/height.
  • the cooling structure 314 can be arranged to minimize contact with the walls of the mouthpiece 300, or disposed away from portions in contact with a user during use, to avoid heating the mouthpiece 300 to an uncomfortable temperature for handling or use.
  • mouthpiece 300 is removable and can function as a “cap” for a device like vaporizer 100. In this manner, a device can be opened to replace a capsule like capsule 200, or for other purposes (e.g. , maintenance or cleaning, battery exchange, and so forth).
  • mouthpiece 300 can be partially removable but attached to the device, by a hinge, lanyard, or other arrangement. Mouthpiece 300 can connect to the device for use by a friction fit, adhesives, hook-and-loop connectors, or other manners.
  • the mouthpiece 300 includes a diverted air inlet in fluid communication with the bore 306 to provide diverted air to mix with air bearing a consumable.
  • the mouthpiece 300 includes an inlet adjustment mechanism operatively coupled with the diverted air inlet and configured to change the RTD (at least with respect to the diverted air inlet) or volume of air entering a consumption path.
  • the mouthpiece can incorporate a filter.
  • a filter incorporated in the mouthpiece can be flavored and impart flavor into the air bearing the consumable.
  • FIG. 4A and FIG. 4B illustrate portions of an example vaporizer 400 in accordance with embodiments disclosed herein.
  • Vaporizer 400 comprises various parts including mouthpiece 440, cooling structure 442, aerosol path 444, diverted air inlet 446, capsule chamber 410, capsule 420, capsule inlet holes 422, capsule outlet holes 428, heater 430, thermocouple 432, heat exchanger 418, convection path 416 defined by the heat exchanger 418, et cetera.
  • ambient air inlet 404 can be disposed toward the bottom or below (if the outlet 452 is regarded as “up”) heat exchanger 418, unlike other embodiments where it is located above or in the vicinity of the heat exchanger. That is, the ambient air inlet 404 may be disposed toward the second end of the housing. Other locations for the ambient air inlet 404 are possible and will be appreciated by those of skill in the art with study of the disclosures herein.
  • an insulating cavity 412 can be provided running along at least a portion of the device in the vicinity of heat exchanger 418 and/or the capsule chamber 410. At least a portion of the insulating cavity 412 may be adjacent to at least a portion of the heat exchanger 418, such as half or nearly all of the entire heat exchanger 418. Additionally or alternatively, at least a portion of the insulating cavity 412 may be adjacent to at least a portion of the capsule chamber 410, such as half or nearly all of the entire capsule chamber 410.
  • the insulating cavity 412 may be a hollow air gap or filled with an insulating material (such as, e.g., an aerogel). In alternative embodiments, insulating cavity 412 can be airtight with the space therebetween comprising a vacuum (or nearvacuum).
  • heat exchanger 418 can be a helical heat exchanger for convection. Varying the geometry of heat exchanger 418 — making it helical as opposed to disc-based, or changing the pitch and thickness of the helical structure — can modify resistance to draw. In embodiments, a helical heat exchanger 418 can be used to reduce resistance to draw in comparison with other embodiments that do not use a helical shape.
  • FIG. 5A, FIG. 5B, and FIG. 5C illustrate portions of an example vaporizer 500 in accordance with embodiments disclosed herein.
  • Vaporizer 500 shows another embodiment of a vaporizer using a regulated orifice 582 by way of a movable orifice adjustment band 580.
  • a diverted air inlet such as a regulated orifice 582
  • an inlet adjustment mechanism such as a movable orifice adjustment band 580, operatively coupled to the diverted air inlet that is configured to restrict or permit more or less air from passing, or open or close, to allow for warmer or cooler, and more or less concentrated, air to be delivered through mouthpiece 540.
  • Vaporizer 500 includes, e.g., capsule 520, exit holes 528 through which aerosol is carried to the mouthpiece 540, and an aerosol path 588 through mouthpiece 540. While aerosol path 588 is shown as a straight bore surrounded by material of consistent construction (other than expressly indicated elements such as ambient air path 584 that is defined by the ambient air channel 586), it is understood that the aspects described throughout this disclosure set forth alternative constructions and arrangements for the mouthpiece and paths for air therein.
  • the inlet adjustment mechanism is configured to regulate RTD (which is inversely proportional to an amount of air drawn) through the diverted air inlet.
  • RTD which is inversely proportional to an amount of air drawn
  • a user can control the temperature or potency of one or more puffs by adjusting the inlet adjustment mechanism. Specific mixture ratios of diverted air and aerosol bearing air can be achieved in this manner.
  • the inlet adjustment mechanism can be a movable orifice adjustment band 580 that contains, around its circumference, a variety of differently sized or shaped holes. For example, the holes may have varying diameters.
  • a different-sized and/or -shaped hole can partially occlude regulated orifice 582 to control RTD.
  • a similar band may be used with another (such as, e.g., air inlet 104 or air inlet 404) without departing from the scope or spirit of the innovation.
  • FIG. 6A, FIG. 6B, FIG. 6C, and FIG. 6D illustrate portions of an example vaporizer 600 in accordance with embodiments disclosed herein.
  • Vaporizer 600 integrates movable orifice adjustment band 680 with a mouthpiece including cooling structure 642 in mouthpiece 640.
  • Aerosol path 688 through the end of mouthpiece 640 receives aerosol through the cooling structure 642 based on vaporized material passing out of cartridge 620 through exit holes 628.
  • the aerosol path 688 can also receive fresh air from regulated orifice 682 via ambient air path 684 based on the positioning of movable orifice adjustment band 680 to change the RTD, temperature, or strength associated with use of vaporizer 600.
  • one or more holes can be used to permit or restrict the flow of ambient air into aerosol path 688 based on the rotation of movable orifice adjustment band.
  • Other techniques for adjusting a component to allow or restrict air flow will be appreciated by those of skill in the art on review of this disclosure.
  • Mouthpiece 640 can include a supporter 641 (i.e., groove, recess, edge, or other geometry) in or on which movable orifice adjustment band 680 rests.
  • supporter 641 can include corresponding notches and recesses, increments, or graduations to assist with adjustment or retaining the position of movable orifice adjustment band 680 between different settings.
  • supporter 641 can integrate a magnet or other means of resisting movement by movable orifice adjustment band 680 with regard to at least one degree of freedom.
  • Regulated orifice 682 can be located within the geometry of or near supporter 641.
  • FIG. 7A, FIG. 7B, and FIG. 7C illustrate views of a vaporizer device 700 disclosed herein. These figures display various views of vaporizer 700 through which its design and construction will be further appreciated by those of skill in the art on review of the disclosures herein. While FIG. 7A, FIG. 7B, and FIG. 7C are useful to understanding the possible arrangement of vaporizer portions depicted in other figures in the context of a complete device, it is understood that the shapes, proportions, positioning of different elements (apertures, ports, controls, et cetera), and so forth, can be varied without departing from the scope or spirit of the innovation disclosed herein.
  • FIG. 8A, FIG. 8B, and FIG. 8C illustrate views of a cartridge 800 disclosed herein. These figures display various views of cartridge 800 through which its design and construction will be further appreciated by those of skill in the art on review of the disclosures herein. While FIG. 8A, FIG. 8B, and FIG. 8C are useful to understanding different views of cartridges depicted in other figures in the context of a complete device, it is understood that the shapes, proportions, positioning of different elements (top, bottom, walls, holes, et cetera), and so forth, can be varied without departing from the scope or spirit of the innovation disclosed herein.
  • FIG. 9 illustrates an example method 900 for using a vaporizing device as disclosed herein.
  • the method 900 begins at 902 then proceeds to 904 where a vaporizer is provided.
  • the vaporizer provided may be a vaporizer as disclosed herein, having a housing and an air inlet leading to an ambient air path in the housing.
  • method 900 can include installing a capsule into the housing of the vaporizer. Installation can arrange the capsule around at least a portion of a heater in the housing.
  • ambient air is drawn through an inlet of a vaporizer.
  • the drawing of air at 906 can be detected by way of an airflow sensor to actuate the vaporizing device.
  • a user control may be utilized to energize the vaporizer.
  • the ambient air may be preheating and/or reducing the temperature of the vaporizer housing (or other components) as it flows through the vaporizer based on an above-ambient temperature of the vaporizer from recent use.
  • the heater (or elements in thermal communication therewith) can be preheated before ambient air is drawn through the inlet.
  • method 900 can include receiving temperature feedback from a thermocouple of a heater or another temperature sensor to continue preheating until the temperature feedback indicates a preset temperature or range.
  • method 900 can include actuating an indicator when preheating is complete.
  • the heater is actuated in response to the signal at 906. After the heater warms and transmits heat, a capsule containing a consumable for use with the vaporizer is heated at 910 based on thermal communication therebetween.
  • the capsule may be a capsule such as that disclosed herein, and is heated by conduction based on contact with the heater.
  • the heater is disposed at least in part in a pillar or other structure of the capsule to allow heating of the capsule from inside-out.
  • a heat exchanger of the vaporizer is heated by the heater based on thermal communication therebetween. Heating of the heat exchanger can occur simultaneously to heating of the capsule at 910.
  • the heater may be disposed at least in part in the heat exchanger.
  • the heat exchanger may also be in thermal communication with the capsule.
  • the heat exchanger can be a portion of an airflow path through the vaporizer whereby air drawn in through an inlet of the vaporizer is brought to a temperature, or temperature range, before heating a consumable by convection.
  • air is drawn into the heat exchanger from the ambient air pathway, and the heat exchanger heats this air.
  • the air, after heating, is thereafter drawn into the capsule at 916 from the heat exchanger.
  • the consumable of the capsule is thereby heated by both conduction (at 910) and convection (at 916), causing aerosolization of at least a portion of the consumable therein.
  • the air passing through the vaporizer, now bearing at least a portion of the consumable, is then provided from an outlet in fluid communication with the capsule at 918 for consumption. Thereafter, at 920, method 900 ends.
  • the vaporizer can include a diverted air inlet that mixes ambient air to cool and/or change the potency of air bearing the consumable provided at 918.
  • method 900 can include in some embodiments drawing diverted air through a diverted air inlet, wherein the diverted air inlet is in fluid communication with the outlet.
  • the vaporizer can include an inlet adjustment mechanism (or mechanisms) in conjunction with the diverted air inlet (or the inlet to the ambient air path) to change an RTD of an inlet.
  • air drawn at 918 may be passed through a cooling structure before reaching a user.
  • FIG. 10 illustrates an example method 1000 for preheating a vaporizer as disclosed herein.
  • Method 1000 begins at 1002 and proceeds to 1004 where the heater is actuated in response to a signal (e.g. , drawing of air, use of a control).
  • the heater heats after being energized and, at 1006, temperature feedback from one or more temperature sensors of the vaporizer is received. Temperature feedback can be received at discrete intervals or continuously.
  • a determination is made as to whether a preheating cycle is complete based on the temperature feedback.
  • the preheating cycle can be determined to be complete based on one or more of the temperature sensors indicating that a temperature or temperature range has been reached.
  • Preheating or operating temperature ranges can be within one or more ranges, or may describe a minimum floor for use.
  • a range or floor may be designed to boil or vaporize particular portions of a consumable.
  • a vaporizing cycle intended to vaporize THCA may heat to a range between 147 and 257 degrees Fahrenheit; to vaporize CBDA may have a range between 176 and 275 degrees Fahrenheit; to vaporize CBCA may have a range between 212 and 293 degrees Fahrenheit; to vaporize THC A-9 may heat to a range between 240 and 325 degrees Fahrenheit; to vaporizer CBD excluding THC A-8 may heat to a range between 320 and 356 degrees Fahrenheit; and to vaporize THC A-8 may heat to a range between 275 and 355 degrees Fahrenheit.
  • the heater may be idled at 1010.
  • a signal can be provided indicating the vaporizer is preheated at 1012, such as a visual or audible signal provided to the user by the vaporizer. More, temperature may be monitored during use and the heater actuated to maintain the preheat temperature or temperature range as thermal energy is lost due to device use. Thereafter, at 1014, method 1000 ends.
  • Method 1000 can also, in embodiments, shut off the heater based on excess heat to avoid going over threshold temperatures.
  • CBN or CBE can be vaporized at approximately 365 and 383 degrees Fahrenheit and cause degradation of THC and CBD, respectively.
  • Benzene can be vaporized from cannabinoid consumables at approximately 400 degrees Fahrenheit, and THCV and CBC can be released, affecting the effects of THC, at approximately 425 degrees Fahrenheit.
  • method 1000 can cause the heater to shut off to prevent introduction of these compounds into a portion of a consumable delivered to a user.
  • the heater may also be shut off based on a detected short circuit or other malfunction, on detection of a drop, or for other safety reasons.
  • FIG. 11 illustrates a method 1100 for using a capsule as disclosed herein.
  • Method 1100 begins at 1102 and proceeds to 1104 where a capsule containing a consumable, such as a capsule disclosed herein having one or more inlets and one or more outlets, is provided.
  • the capsule is arranged in a vaporizer such as a vaporizer disclosed herein.
  • the capsule is placed in a capsule chamber of a vaporizer and arranged over or about a heater that protrudes into a pillar or similar structure.
  • method 1100 can include opening a seal of the capsule that covers at least one of the one or more inlets and one or more outlets.
  • arranging the capsule in the vaporizer opens or breaks the seal.
  • the consumable is heated by the heater at 1108 based on conduction from the heater to the capsule. Thereafter and/or simultaneously, at 1110, the consumable is heated by convection using air from a heat exchanger at 1110.
  • the heat exchanger may be heated by the same heater that heats the capsule and consumable therein at 1108.
  • an aerosolized portion of the consumable may be output at 1112. Output can occur through an outlet of the vaporizer or using a mouthpiece operatively coupled therewith. In embodiments, portions of the consumable output can be provided through a mouthpiece as disclosed herein. Thereafter method 1100 can end at 1114.
  • method 1100 can include drawing air through a diverted air inlet, as disclosed herein, as well as adjusting an RTD based on an inlet adjustment mechanism operatively coupled with the diverted air inlet.
  • An inlet adjustment mechanism may also be used with the inlet through which ambient air is drawn before being heated and provided into the capsule.
  • FIG. 12 illustrates a method 1200 for using a mouthpiece as disclosed herein.
  • Method 1200 begins at 1202 and proceeds to 1204 where at least a vaporized or aerosolized portion of a consumable is drawn into a bore.
  • the portion of the consumable may be an aerosolized or vaporized portion borne in heated air after passing through a capsule containing the consumable that is provided using a vaporizer and/or capsule as disclosed herein.
  • the air is drawn into a cooling structure.
  • no bore or separate inlet need be provided in the mouthpiece, and heated air containing a consumable portion may be drawn directly into a cooling structure.
  • method 1200 can further include attaching a mating portion of the mouthpiece to the vaporizer before the portion of the consumable is received in the bore. Attachment can include fluidly sealing the mating portion of the mouthpiece using a seal or gasket disposed therein.
  • air may be drawn into a diverted air inlet to mix with the heated air bearing the consumable portion, to cool and/or modify the concentration of consumable or other materials in the air traveling through the mouthpiece.
  • diverted air may be drawn at, e.g., 1204 or 1206, simultaneously with other steps and/or through structural elements substantially collocated with the bore or an upstream portion of the heating structure.
  • Method 1200 can also include changing the RID through the diverted air inlet using an inlet adjustment mechanism. In an alternative method, no diverted air is drawn at 1208 or elsewhere.
  • the air including the consumable portion is drawn through an outlet for delivery to a user. Once reaching the outlet, the air provided at 1204 is cooled and may be mixed to a specific concentration based on the inclusion of diverted air. Thereafter, at 1212, method 1200 can end.
  • FIG. 13A, FIG. 13B, and FIG. 13C illustrate test results generated at least in part using devices disclosed herein.
  • the tests were performed with a puffing machine.
  • the puffing machine includes a syringe that opens to create vacuum suction that draws 1 Iml/sec for a duration of 5 seconds (labeled as “puff’ on the chart). For the next 5 seconds the air path to the vaporizer is interrupted while the syringe goes back to its original closed position (labeled as “flow return”).
  • the temperature setting was set to 210°C on the device.
  • FIG. 13 A shows the temperature inside the flower against time, with the temperature rising during the puff.
  • FIG. 13B shows the temperature of the vapor exiting the mouthpiece against time. The rise of temperature during the puff is not directly reflected in the exiting temperature; rather, the vapor exiting the vaporizer has a consistent cool temperature with narrow variation.
  • FIG. 13C shows results of the same exit vapor temperature testing — the puffing machine drawing at 1 Iml/sec for 5 seconds with the device set to 210°C— using a larger, less efficient, less portable competitor device.
  • the competitor device despite its larger size and lower efficiency, exhibits a more pronounced and growing change in temperature as a result of the puffs. Even if this more significant temperature variation that increases in magnitude with subsequent puffs is acceptable to users, its size and inefficiency are still undesirable when the same or better effects can be achieved by the disclosed device.
  • any one of the above-described and other example features of example embodiments may be embodied in the form of an apparatus, method, system, computer program, tangible computer readable medium and tangible computer program product.
  • any one of the above-described and other example features of example embodiments may be embodied in the form of an apparatus, method, system, computer program, tangible computer readable medium and tangible computer program product.
  • of the aforementioned methods may be embodied in the form of a system or device, including, but not limited to, any of the structure for performing the methodology illustrated in the drawings.

Abstract

Des systèmes et des procédés fournissent un vaporisateur à double chauffage, un embout de refroidissement d'aérosol et une capsule de consommable. Le vaporisateur à double chauffage chauffe un consommable en utilisant à la fois la conduction et la convection. L'embout de refroidissement d'aérosol empêche la vapeur à haute température de provoquer une expérience d'utilisateur déplaisante. La capsule de consommable est conçue pour être chauffée par conduction et convection et fournir des consommables uniformes pour une expérience cohérente.
PCT/IB2021/060523 2020-11-13 2021-11-12 Vaporisateur et capsule électronique à double dispositif de chauffage WO2022101854A1 (fr)

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US63/113,498 2020-11-13

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WO2024018029A1 (fr) * 2022-07-22 2024-01-25 Jt International Sa Embout buccal destiné à être utilisé avec un dispositif de génération d'aérosol

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WO2019224382A1 (fr) * 2018-05-25 2019-11-28 Philip Morris Products S.A. Ensemble cartouche moulée
US20200146352A1 (en) * 2018-11-08 2020-05-14 Juul Labs, Inc. Vaporizer Device With More Than One Heating Element
US20200163378A1 (en) * 2016-06-16 2020-05-28 Juul Labs, Inc. On-demand, portable convection vaporizer
WO2020115155A1 (fr) * 2018-12-06 2020-06-11 Philip Morris Products S.A. Système de génération d'aérosol comprenant un élément venturi

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US20200163378A1 (en) * 2016-06-16 2020-05-28 Juul Labs, Inc. On-demand, portable convection vaporizer
US20180280636A1 (en) * 2017-03-31 2018-10-04 Shenzhen First Union Technology Co., Ltd. Atomizer and electronic cigarette having same
WO2019224382A1 (fr) * 2018-05-25 2019-11-28 Philip Morris Products S.A. Ensemble cartouche moulée
US20200146352A1 (en) * 2018-11-08 2020-05-14 Juul Labs, Inc. Vaporizer Device With More Than One Heating Element
WO2020115155A1 (fr) * 2018-12-06 2020-06-11 Philip Morris Products S.A. Système de génération d'aérosol comprenant un élément venturi

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