# US 2018/0020737 A1 · Fluid permeable heater assembly with cap > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0020737 A1 - Document ID: US20180020737A1 - Status: Published application - Kind: A1 - Application number: 15/658,881 - Filed: 2017-07-25 - Published: 2018-01-25 - Earliest claimed: 2016-07-25 - Assignees: Altria Client Services LLC - Inventors: Oleg MIRONOV; Ihar Nikolaevich Zinovik; Jean-Marc Widmer; Keethan Dasnavis Fernando - Web page: https://patentgrep.com/patent/US20180020737A1 ## CPC - A24F 40/46: Shape or structure of electric heating means - F16T 1/00: Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers - F22B 1/284: {with water in reservoirs} - H05B 1/0277: {Electric radiators} - H05B 3/44: heating conductor arranged within rods or tubes of insulating material - 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) - F16T: STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS - F22B: METHODS OF STEAM GENERATION; STEAM BOILERS - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL ## Abstract A fluid permeable heater assembly for an aerosol-generating system includes a cap and a substantially flat electrically conductive and fluid permeable heating element. The cap includes a hollow body with a first cap opening and a second cap opening. The first cap opening is opposite to the second cap opening. The heating element is configured to vaporise aerosol-forming substrate. The heating element is mounted on the cap, such that the heating element extends across the first cap opening. A cartridge for an aerosol-generating system includes the heater assembly, a liquid storage portion, a mouth piece, and a retainer. ## Claims ### Claim 1 A heater assembly for an aerosol-generating system, the heater assembly being fluid permeable, the heater assembly comprising: a cap including, a hollow body having a first cap opening and a second cap opening, the first cap opening being opposite the second cap opening, the cap being integrally formed, and a holder including a holder opening, the holder configured to cover the first cap opening such that the holder opening superposes with at least a portion of the first cap opening; and a heating element, the heating element being a substantially flat electrically conductive and fluid permeable heating element, the heating element configured to vaporise an aerosol-forming substrate, and the heating element mounted on the holder such that the heating element extends across the first cap opening. ### Claim 2 (depends on 1) The heater assembly according to claim 1, further comprising: a host material piece configured to retain the aerosol-forming substrate, at least a portion of the host material piece arranged in the hollow body between the first cap opening and the second cap opening. ### Claim 3 (depends on 2) The heater assembly according to claim 2, wherein the host material piece is substantially a same size and a same shape as an interior space of the hollow body. ### Claim 4 (depends on 1) The heater assembly according to claim 1, wherein an interior space of the hollow body has a substantially cylindrical shape. ### Claim 5 (depends on 2) The heater assembly according to claim 2, wherein the host material piece is at least partially in contact with the heating element. ### Claim 6 (depends on 2) The heater assembly according to claim 2, further comprising: a transport material piece configured to transport the aerosol-forming substrate from the host material piece to the heating element, the transport material piece in contact with the heating element, the transport material piece between the heating element and the host material piece, and the heating element mounted on the holder. ### Claim 7 (depends on 1) The heater assembly according to claim 1, wherein the transport material piece is in the holder opening. ### Claim 8 (depends on 1) The heater assembly according to claim 1, wherein the transport material piece has substantially a same size and a same shape as the holder opening. ### Claim 9 (depends on 1) The heater assembly according to claim 1, wherein the heating element comprises: a mesh including at least two electrically conductive contact areas, each of the at least two electrically conductive contact areas positioned at an edge area of the heating element, and the mesh extending across at least a portion of the first cap opening. ### Claim 10 (depends on 1) The heater assembly according to claim 1, wherein the at least two electrically conductive contact areas are at a dense area of the heating element. ### Claim 11 A cartridge for an aerosol-generating system, the cartridge comprising: a heater assembly including, a cap including, a hollow body having a first cap opening and a second cap opening, the first cap opening being opposite the second cap opening, the cap being integrally formed, and a holder including a holder opening, the holder configured to cover the first cap opening such that the holder opening superposes with at least a portion of the first cap opening; and a heating element, the heating element being a substantially flat electrically conductive and fluid permeable heating element, the heating element configured to vaporise an aerosol-forming substrate, and the heating element mounted on the holder such that the heating element extends across the first cap opening; a storage portion configured to store an aerosol-forming substrate; and a retainer configured to retain the heater assembly and configured to retain the heater assembly in contact with the storage portion. ### Claim 12 (depends on 11) The cartridge according to claim 11, further comprising: a mouth piece configured to hold the storage portion. ### Claim 13 An aerosol-generating system, comprising: a main unit; and a cartridge for an aerosol-generating system, the cartridge comprising: a heater assembly including, a cap including, a hollow body having a first cap opening and a second cap opening, the first cap opening being opposite the second cap opening, the cap being integrally formed, and a holder including a holder opening, the holder configured to cover the first cap opening such that the holder opening superposes with at least a portion of the first cap opening; and a heating element, the heating element being a substantially flat electrically conductive and fluid permeable heating element, the heating element configured to vaporise an aerosol-forming substrate, and the heating element mounted on the holder such that the heating element extends across the first cap opening; a storage portion configured to store an aerosol-forming substrate; and a retainer configured to retain the heater assembly and configured to retain the heater assembly in contact with the storage portion, the cartridge being removably coupled to the main unit.