# US 11,998,054 B2 · Electronic smoking device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,998,054 B2 - Document ID: US11998054B2 - Status: Granted - Kind: B2 - Application number: 17/024,027 - Filed: 2020-09-17 - Published: 2021-03-11 - Granted: 2024-06-04 - Earliest claimed: 2015-06-02 - Assignees: Fontem Ventures B.V. - Applicants: Fontem Holdings 1 B.V. - Inventors: Vaclav Borkovec; Nicole Tschierske - Web page: https://patentgrep.com/patent/US11998054B2 ## CPC - A24F 40/485: Valves; Apertures - A24F 40/40: Constructional details, e.g. connection of cartridges and battery parts - A24F 40/60: Devices with integrated user interfaces - F16K 31/002: {actuated by temperature variation (thermo-electric F16K31/025)} - H05B 3/06: Heater elements structurally combined with coupling elements or holders - A24F 40/10: Devices using liquid inhalable precursors - A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06) - F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)} - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL ## Abstract An electronic smoking device is provided comprising a power supply, a liquid reservoir storing a liquid therein and having a liquid reservoir opening, and an atomizer adapted to atomize the liquid stored in the liquid reservoir when operated by the power supply. Further provided are at least two plates provided with an adjustable spacing therebetween, wherein a liquid flow passage is formed between the at least two plates extending from the liquid reservoir opening to the atomizer. ## Claims ### Claim 1 Electronic smoking device comprising: a power supply; a first liquid reservoir storing a liquid therein and having a first opening; an atomizer adapted to atomize the liquid stored in the first liquid reservoir when operated by the power supply, wherein the atomizer includes a first side end opposing a second side end along a longitudinal axis of the atomizer; and a first plate and a second plate having an adjustable spacing therebetween, wherein a liquid flow passage is formed between the first and the second plates, the liquid flow passage located between the first liquid reservoir opening and a first side end of the atomizer, and wherein the liquid flow passage is aligned with the longitudinal axis of the atomizer. ### Claim 2 (depends on 1) The electronic smoking device of claim 1, wherein the first and the second plates are arranged to block the first liquid reservoir opening when no spacing between the first and the second plates exists. ### Claim 3 (depends on 1) The electronic smoking device of claim 1, wherein the first and the second plates are biased towards each other by a resilient element. ### Claim 4 (depends on 1) The electronic smoking device of claim 1, further comprising an electromagnet electrically connected to the power supply and coupled to the first plate, and a magnetic element coupled to or being formed by the second plate. ### Claim 5 (depends on 1) The electronic smoking device of claim 1, further comprising at least one thermal expansion element attached to at least one of the first or the second plates, the thermal expansion element configured to separate at least a portion of the first and the second plates from each other upon thermal expansion. ### Claim 6 (depends on 5) The electronic smoking device of claim 5, further comprising a third plate and a fourth plate having an adjustable spacing therebetween, wherein a second liquid flow passage is formed between the third and the fourth plates, the second liquid flow passage located between the first liquid reservoir opening and a second side end of the atomizer. ### Claim 7 (depends on 5) The electronic smoking device of claim 5, wherein the at least one thermal expansion element is configured to be heated by the atomizer or by an additional heating element coupled to control electronics. ### Claim 8 (depends on 1) The electronic smoking device of claim 1, wherein the liquid reservoir is a cylindrical sleeve, and wherein the first plate, the second plate, and the atomizer are located within the cylindrical sleeve of the reservoir. ### Claim 9 (depends on 1) The electronic smoking device of claim 1, wherein the at least one of the first or the second plates includes, or is coupled to, a bimetal structure, and wherein the bimetal structure is configured to bend upon temperature variation such that a spacing is varied between the first and the second plates based on the temperature of the bimetal structure. ### Claim 10 (depends on 9) The electronic smoking device of claim 9, wherein the atomizer is transverse to the longitudinal axis of the liquid reservoir. ### Claim 11 (depends on 1) The electronic smoking device of claim 1, wherein each of the first and second plates comprise a first and second respective body portion and a first and second respective protrusion, wherein the respective first and second protrusions are configured for communication with the first liquid reservoir opening. ### Claim 12 (depends on 1) The electronic smoking device of claim 1, further comprising a second liquid reservoir having a second liquid reservoir opening, wherein the first liquid reservoir opening includes the first plate and the second plate, and the second liquid reservoir opening includes a third plate and a fourth plate, the first and the second plates configured to open or close the first liquid reservoir opening, and the third and the fourth plates configured to open or close the second liquid reservoir opening. ### Claim 13 (depends on 1) The electronic smoking device of claim 1, wherein a push button is provided on the electronic smoking device and the spacing between the first and second plates is adjustable using the push button. ### Claim 14 An electronic smoking device including an atomizer and first liquid reservoir portion comprising: a first liquid reservoir adapted to store a liquid therein and having a first liquid reservoir opening; the atomizer adapted to atomize the liquid stored in the first liquid reservoir, wherein the atomizer includes a first side end opposing a second side end along a longitudinal axis of the atomizer; and a first plate and a second plate having an adjustable spacing therebetween, wherein a liquid flow passage is formed between the first and the second plates, the first and the second plates located between the first liquid reservoir opening and the first side end of the atomizer, and wherein the liquid flow passage is aligned with the longitudinal axis of the atomizer. ### Claim 15 (depends on 14) The electronic smoking device of claim 14, wherein the first and second plates are arranged at a first spacing to retain liquid in the first liquid reservoir. ### Claim 16 (depends on 14) The electronic smoking device of claim 14, further comprising a third plate and a fourth plate having an adjustable spacing therebetween, wherein a second liquid flow passage is formed between the third and the fourth plates, the second liquid flow passage located between the first liquid reservoir opening and a second side end of the atomizer. ### Claim 17 (depends on 14) The electronic smoking device of claim 14, further comprising an electromagnet electrically connected to the power supply and coupled to the first plate, and a magnetic element coupled to or being formed by the second plate. ### Claim 18 (depends on 14) The electronic smoking device of claim 14, further comprising at least one thermal expansion element attached to at least one of the first or the second plate, the thermal expansion element configured to separate at least a portion of the first plate from the second plate upon thermal expansion. ### Claim 19 (depends on 14) The electronic smoking device of claim 14, wherein the liquid reservoir is a cylindrical sleeve, and wherein the first plate, the second plate, and the atomizer are located within the cylindrical sleeve of the reservoir. ### Claim 20 (depends on 14) The electronic smoking device of claim 14, wherein the atomizer is transverse to the longitudinal axis of the liquid reservoir.