# US 12,120,778 B2 · Aerosol delivery device including a ceramic wicking element > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,120,778 B2 - Document ID: US12120778B2 - Status: Granted - Kind: B2 - Application number: 17/832,262 - Filed: 2022-06-03 - Published: 2022-10-13 - Granted: 2024-10-15 - Earliest claimed: 2017-04-27 - Assignees: RAI Strategic Holdings, Inc. - Applicants: Rai Strategic Holdings, Inc. - Inventors: David A. Clemens; William Kevin Carpenter; Michael F. Davis - Web page: https://patentgrep.com/patent/US12120778B2 ## CPC - H05B 1/0244: {Heating of fluids (H05B1/0247 takes precedence)} - A24F 40/40: Constructional details, e.g. connection of cartridges and battery parts - A24F 40/44: Wicks - H05B 3/04: Waterproof or air-tight seals for heaters - H05B 3/42: non-flexible - A24F 40/10: Devices using liquid inhalable precursors - A24F 40/485: Valves; Apertures - H05B 2203/014: Heaters using resistive wires or cables not provided for in H05B3/54 - H05B 2203/021: Heaters specially adapted for heating liquids - H05B 2203/022: Heaters specially adapted for heating gaseous material - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06) ## Abstract The present disclosure relates to aerosol delivery devices, methods of forming such devices, and elements of such devices. In some embodiments, the present disclosure provides vapor-forming units for aerosol delivery devices, the vapor-forming units including a ceramic wick that is in contact with a heater and in contact with an aerosol precursor composition. The vapor-forming units are connectable to a power unit. ## Claims ### Claim 1 An aerosol delivery device comprising: a housing extending between a mouthend and a connector end; a mouthpiece at the mouthend of the housing; a connector at the connector end of the housing; a flow tube arranged within the housing; a reservoir for an aerosol precursor composition defined between the flow tube and the housing; and an atomizer comprising a liquid transport element that is formed of a porous ceramic and a heating element, wherein the liquid transport element extends between a first end and a second end and has a hollow interior that defines an open passage that extends between the first end and the second end of the liquid transport element, and wherein the heating element is positioned at least partially within the open passage of the liquid transport element; wherein the liquid transport element sealingly engages the flow tube and at least a portion of the liquid transport element is received through at least a portion of the flow tube so as to be within the flow tube, such that the open passage defined by the hollow interior of the liquid transport element aligns with a path extending through the flow tube. ### Claim 2 (depends on 1) The aerosol delivery device of claim 1, wherein the flow tube extends between a first end that engages the mouthpiece and a second end through which the at least the portion of the liquid transport element is received. ### Claim 3 (depends on 1) The aerosol delivery device of claim 1, wherein the first end of the flow tube has a first transverse dimension, and the second end of the flow tube has a second transverse dimension that is greater than the first transverse dimension. ### Claim 4 (depends on 3) The aerosol delivery device of claim 3, wherein the second transverse dimension of the second end of the flow tube is sized for receiving the at least the portion of the liquid transport element. ### Claim 5 (depends on 3) The aerosol delivery device of claim 3, wherein the second transverse dimension of the second end of the flow tube is sized for receiving the at least the portion of the liquid transport element and also for receiving at least one further component of the aerosol delivery device. ### Claim 6 (depends on 2) The aerosol delivery device of claim 2, wherein the liquid transport element and the flow tube are arranged relative to one another such that, when the at least the portion of the liquid transport element is received within the flow tube, the aerosol precursor composition from the reservoir passes to the liquid transport element but is substantially prevented from entering the flow tube between the liquid transport element and the first end of the flow tube. ### Claim 7 (depends on 2) The aerosol delivery device of claim 2, further comprising at least one sealing member positioned between the liquid transport element and the flow tube. ### Claim 8 (depends on 1) The aerosol delivery device of claim 1, wherein the flow tube extends fully between the mouthpiece and the connector. ### Claim 9 (depends on 1) The aerosol delivery device of claim 1, wherein the flow tube comprises one or more openings formed in an outer wall defining the flow tube. ### Claim 10 (depends on 1) The aerosol delivery device of claim 1, wherein the open passage of the liquid transport element is defined by an interior surface of the porous ceramic. ### Claim 11 (depends on 10) The aerosol delivery device of claim 10, wherein the heating element is in a heating arrangement with the interior surface of the porous ceramic. ### Claim 12 (depends on 1) The aerosol delivery device of claim 1, wherein the heating element is configured as a wire coil. ### Claim 13 (depends on 1) The aerosol delivery device of claim 1, wherein the flow tube is formed of metal. ### Claim 14 (depends on 1) The aerosol delivery device of claim 1, wherein the open passage that extends between the first end and the second end of the liquid transport element has a longitudinal axis that is substantially parallel to a longitudinal axis of the housing. ### Claim 15 (depends on 1) The aerosol delivery device of claim 1, wherein the liquid transport element further sealingly engages the connector. ### Claim 16 (depends on 1) The aerosol delivery device of claim 1, wherein the liquid transport element is at least partially positioned within the connector. ### Claim 17 (depends on 1) The aerosol delivery device of claim 1, wherein the at least the portion of the liquid transport element received through the flow tube is surrounded by the flow tube and at least a second portion of the liquid transport element is surrounded by at least a portion of the connector.