# US 11,304,451 B2 · Aerosol delivery device with dual reservoir > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,304,451 B2 - Document ID: US11304451B2 - Status: Granted - Kind: B2 - Application number: 16/657,219 - Filed: 2019-10-18 - Published: 2021-04-22 - Granted: 2022-04-19 - Earliest claimed: 2019-10-18 - Assignees: RAI Strategic Holdings, Inc. - Applicants: Rai Strategic Holdings, Inc. - Inventors: Vahid Hejazi - Web page: https://patentgrep.com/patent/US11304451B2 ## CPC - A24F 40/46: Shape or structure of electric heating means - A24F 7/00: Mouthpieces for pipes; Mouthpieces for cigar or cigarette holders - A24F 40/05: Devices without heating means - A24F 40/30: Devices using two or more structurally separated inhalable precursors, e.g. using two liquid precursors in two cartridges - A24F 40/42: Cartridges or containers for inhalable precursors - A24F 40/50: Control or monitoring - A61M 15/0085: {using ultrasonics (spraying or atomising liquids using ultrasonic vibrations in general B05B17/06)} - A61M 15/06: Inhaling appliances shaped like cigars, cigarettes or pipes - B05B 17/0646: {Vibrating plates, i.e. plates being directly subjected to the vibrations, e.g. having a piezoelectric transducer attached thereto} - B05B 17/0676: {Feeding means} - 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) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} - B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D) ## Abstract The present disclosure provides an aerosol delivery device that comprises a housing defining an outer wall, and further including a power source and a control component, a mouthpiece portion that defines an aerosol exit path, a first reservoir configured to contain a first liquid composition, a second reservoir configured to contain a second liquid composition, a first atomization assembly configured to vaporize the first liquid composition to generate a first aerosol having a first aerosol particle size, and a second atomization assembly configured to vaporize the second liquid composition to generate a second aerosol having a second aerosol particle size. The first liquid composition may be different than the second liquid composition, and the first particle size may be different than the second particle size. ## Claims ### Claim 1 An aerosol delivery device comprising: a housing defining an outer wall, and further including a power source and a control component; a mouthpiece portion located proximate to or on the housing that defines an aerosol exit path; a first reservoir located in the housing configured to contain a first liquid composition; a second reservoir located in the housing configured to contain a second liquid composition; a first atomization assembly located in the housing configured to vaporize the first liquid composition to generate a first aerosol having a first aerosol particle size; and a second atomization assembly located in the housing configured to vaporize the second liquid composition to generate a second aerosol having a second aerosol particle size, wherein the first liquid composition is different than the second liquid composition, and wherein the first particle size is different than the second particle size, wherein one of the first and second atomization assemblies comprises a vibrating assembly, wherein one of the first and second vibrating assemblies comprises a mesh plate and a vibrating component, and wherein the vibrating component of one of the first and second vibrating assemblies comprises a piezoelectric ring affixed to and substantially surrounding the mesh plate. ### Claim 2 (depends on 1) The aerosol delivery device of claim 1, wherein the mesh plate of one of the first and second vibrating assemblies is substantially flat. ### Claim 3 (depends on 1) The aerosol delivery device of claim 1, wherein the first and second reservoirs and the first and second atomization assemblies are contained in the housing, and wherein the mouthpiece portion is configured to be removable and replaceable from the housing. ### Claim 4 (depends on 1) The aerosol delivery device of claim 1, wherein the first and second reservoirs are located on opposite sides of the aerosol exit path. ### Claim 5 (depends on 1) The aerosol delivery device of claim 1, wherein the first and second atomization assemblies are located on opposites sides of the aerosol exit path. ### Claim 6 (depends on 5) The aerosol delivery device of claim 5, wherein the first and second atomization assemblies are angled toward each other and the aerosol exit path. ### Claim 7 (depends on 6) The aerosol delivery device of claim 6, wherein a surface of each of the first and second atomization assemblies forms an angle with respect to the aerosol exit path. ### Claim 8 (depends on 7) The aerosol delivery device of claim 7, wherein the angle formed by a surface of each of the first and second atomization assemblies is greater than 45 degrees and less than 180 degrees. ### Claim 9 (depends on 1) The aerosol delivery device of claim 1, wherein the first particle size is smaller than approximately 4 microns. ### Claim 10 (depends on 1) The aerosol delivery device of claim 1, wherein the second particle size is larger than approximately 4 microns. ### Claim 11 (depends on 1) The aerosol delivery device of claim 1, wherein the second particle size between approximately 4 microns and approximately 15 microns. ### Claim 12 (depends on 1) The aerosol delivery device of claim 1, wherein the first and second atomization assemblies are configured to generate the first and second aerosols substantially simultaneously. ### Claim 13 (depends on 1) The aerosol delivery device of claim 1, wherein the first atomization assembly is configured generate the first aerosol after the second atomization assembly is configured to generate the second aerosol. ### Claim 14 (depends on 1) The aerosol delivery device of claim 1, wherein the first and second atomization assemblies are configured to be automatically controlled via the control component. ### Claim 15 (depends on 1) The aerosol delivery device of claim 1, wherein the first liquid composition comprises a water-based liquid that includes nicotine. ### Claim 16 (depends on 1) The aerosol delivery device of claim 1, wherein the second liquid composition includes a pulmonary surfactant. ### Claim 17 An aerosol delivery device comprising: a housing defining an outer wall, and further including a power source and a control component; a mouthpiece portion located proximate to or on the housing that defines an aerosol exit path; a first reservoir located in the housing configured to contain a first liquid composition; a second reservoir located in the housing configured to contain a second liquid composition; a first atomization assembly located in the housing configured to vaporize the first liquid composition to generate a first aerosol having a first aerosol particle size; and a second atomization assembly located in the housing configured to vaporize the second liquid composition to generate a second aerosol having a second aerosol particle size, wherein the first liquid composition is different than the second liquid composition, and wherein the first particle size is different than the second particle size, wherein one of the first and second atomization assemblies comprises a vibrating assembly, wherein one of the first and second vibrating assemblies comprises a mesh plate and a vibrating component, and wherein at least a portion of the mesh plate of at least one of the first and second vibrating assemblies is convex with respect to the respective reservoir.