# US 10,244,795 B2 · Vaporizing assembly comprising sheet heating element and liquid delivery device for an aerosol generating system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,244,795 B2 - Document ID: US10244795B2 - Status: Granted - Kind: B2 - Application number: 15/474,136 - Filed: 2017-03-30 - Published: 2017-10-05 - Granted: 2019-04-02 - Earliest claimed: 2016-03-31 - Assignees: Altria Client Services LLC - Applicants: Altria Client Services LLC - Inventors: Rui Nuno Batista; Dani Ruscio - Web page: https://patentgrep.com/patent/US10244795B2 ## CPC - A61M 15/06: Inhaling appliances shaped like cigars, cigarettes or pipes - A24F 40/46: Shape or structure of electric heating means - A24F 40/48: Fluid transfer means, e.g. pumps - A61M 11/041: {using heaters} - A24F 40/10: Devices using liquid inhalable precursors - A24F 40/50: Control or monitoring - A24F 40/53: Monitoring, e.g. fault detection - A61M 11/006: {operated by applying mechanical pressure to the liquid to be sprayed or atomised} - A61M 11/042: {electrical} - A61M 2205/3653: by Joule effect, i.e. electric resistance - A61M 2205/50: with microprocessors or computers - A61M 2205/8206: battery-operated - 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)} - A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06) ## Abstract A vaporizing assembly for an aerosol generating system includes a sheet heating element and a delivery device configured to deliver a liquid aerosol-forming substrate from a liquid storing portion to the sheet heating element. The sheet heating element is spaced apart from the delivery device and is configured to heat the delivered liquid aerosol forming substrate. ## Claims ### Claim 1 A vaporizing assembly for an aerosol generating system, the vaporizing assembly comprising: a heating element at a first position in the vaporizing assembly, the heating element including, a sheet heating element including, a plurality of electrically conductive fibers; a liquid storing portion at a second position in the vaporizing assembly, the first position being longitudinally separated from the first position, the liquid storing portion configured to store a liquid aerosol forming substrate therein; and a delivery device configured to deliver the liquid aerosol forming substrate from the liquid storing portion to the heating element, the delivery device between the liquid storing portion and the heating element, the delivery device and the heating element defining an air gap therebetween, the delivery device including, a micropump configured to pump the liquid aerosol forming substrate from the liquid storing portion to the heating element, and the heating element configured to heat the delivered liquid aerosol forming substrate. ### Claim 2 (depends on 1) The vaporizing assembly according to claim 1, wherein the sheet heating element is a mesh heater. ### Claim 3 (depends on 1) The vaporizing assembly according to claim 1, wherein the sheet heating element has a square geometry. ### Claim 4 (depends on 1) The vaporizing assembly according to claim 1, wherein the delivery device is configured to deliver an amount of the liquid aerosol forming substrate to the sheet heating element upon performing one activation cycle. ### Claim 5 (depends on 1) The vaporizing assembly according to claim 1, wherein the delivery device is configured to spray the liquid aerosol forming substrate onto the sheet heating element as a spraying jet having a size and shape fitted to a geometry of the sheet heating element. ### Claim 6 (depends on 1) The vaporizing assembly according to claim 1, wherein the delivery device further comprises, an air spray nozzle. ### Claim 7 An aerosol generating system, comprising: a vaporizing assembly including, a heating element at a first position in the vaporizing assembly, the heating element including, a sheet heating element including, a plurality of electrically conductive fibers, a liquid storing portion at a second position in the vaporizing assembly, the second position being longitudinally separated from the first position, the liquid storing portion configured to store a liquid aerosol forming substrate therein, a delivery device configured to deliver the liquid aerosol forming substrate from the liquid storing portion to the heating element, the delivery device between the liquid storing portion and the heating element, the delivery device and the heating element defining and air gap therebetween, the delivery device including, a micropump configured to pump the liquid aerosol forming substrate from the liquid storing portion to the heating element, and the heating element configured to heat the delivered liquid aerosol forming substrate to form an aerosol; and an operation detection unit configured to detect an operation to initiate aerosol generation. ### Claim 8 (depends on 7) The aerosol generating system according to claim 7, further comprising: a control unit configured to activate the delivery device with a time delay after activating the heating element in response to a detected operation. ### Claim 9 (depends on 7) The aerosol generating system according to claim 7, comprising a device portion including, a power supply and a control unit, and a replaceable liquid storage portion. ### Claim 10 (depends on 7) The aerosol generating system according to claim 7, wherein the operation includes drawing on a mouth-end of the aerosol generating system, pressing an on-off button, or both. ### Claim 11 A method for generating an aerosol comprising: heating a sheet heating element; and delivering, by a delivery device spaced apart from the sheet heating element, a liquid aerosol forming substrate to the sheet heating element, the delivery device between a liquid storing portion and the sheet heating element, the delivery device and the sheet heating element defining an air gap therebetween, the delivery device including, a micropump configured to pump the liquid aerosol forming substrate from the liquid storing portion to the heating element, the delivered liquid aerosol-forming substrate being heated by the sheet heating element to a temperature sufficient to volatilize at least a part of the delivered liquid aerosol-forming substrate. ### Claim 12 (depends on 1) The vaporizing assembly according to claim 1, wherein the sheet heating element has a rectangular geometry.