# US 11,992,053 B2 · Vaporizing apparatus and vaporizer thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,992,053 B2 - Document ID: US11992053B2 - Status: Granted - Kind: B2 - Application number: 17/144,821 - Filed: 2021-01-08 - Published: 2022-04-07 - Granted: 2024-05-28 - Earliest claimed: 2020-10-07 - Assignees: Polytronics Technology Corp. - Applicants: Polytronics Technology Corp. - Inventors: Po-Chih Shen; Tong Cheng Tsai; Yu Sian Jhou - Web page: https://patentgrep.com/patent/US11992053B2 ## CPC - A24F 40/46: Shape or structure of electric heating means - A24F 40/44: Wicks - A24F 40/10: Devices using liquid inhalable precursors - Y02E 60/10: Energy storage using batteries - A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A vaporizer comprises an absorber, a heating element, and a porous cover layer. The absorber is configured to absorb a material to be vaporized. The heating element is configured to heat and vaporize the material to be vaporized in the absorber, and includes a first electrode portion, a second electrode portion, and an electrically conductive connecting member connected between the first electrode portion and the second electrode portion. The porous cover layer covers at least a portion of the heating element without covering the first and second electrode portions. A ratio of an area of the porous cover layer to an area of the electrically conductive connecting member is defined as a covering ratio, which is at least 50%. A porosity of the porous cover layer ranges from 30% to 75%. ## Claims ### Claim 1 A vaporizer, comprising: an absorber configured to absorb a material to be vaporized; a heating element configured to heat and vaporize the material to be vaporized in the absorber, and including a first electrode portion, a second electrode portion, and an electrically conductive connecting member connected between the first electrode portion and the second electrode portion; and a porous cover layer having a rectangular shape and covering at least a portion of the heating element without covering the first and second electrode portions, wherein a ratio of an area of the porous cover layer to an area of the electrically conductive connecting member is defined as a covering ratio, wherein the porous cover layer extends along the electrically conductive connecting member and covers all portions of the electrically conductive connecting member, wherein the covering ratio is at least 100%, wherein a porosity of the porous cover layer ranges from 30% to 75%, wherein an upper edge of the porous cover layer is distanced from an upper edge of the absorber by a gap (D) and a lower edge of the porous cover layer is distanced from a lower edge of the absorber by the gap (D), and wherein the gap (D) is 0.1 mm-0.6 mm. ### Claim 2 (depends on 1) The vaporizer of claim 1, wherein a material of the porous cover layer is selected from aluminum oxide, silicon carbide, sodium silicate, ferrite, active carbon, kaolinite, halloysite, montmorillonite, calcium phosphate, zeolite, vermiculite, diatomite, palygorskite, sepiolite, perlite, or any combination thereof. ### Claim 3 (depends on 1) The vaporizer of claim 1, wherein the covering ratio is in a range of 100%-800%. ### Claim 4 (depends on 1) The vaporizer of claim 1, wherein the porous cover layer covers the entirety of a bottom surface of the absorber without covering the first and second electrode portions. ### Claim 5 (depends on 1) The vaporizer of claim 1, wherein the porous cover layer has a thickness of 10 μm-200 μm. ### Claim 6 (depends on 1) The vaporizer of claim 1, wherein the porosity of the porous cover layer is 45%-75%. ### Claim 7 A vaporizing apparatus, comprising: a housing enclosing a reservoir for storing a material to be vaporized; an absorber configured to absorb the material to be vaporized; a heating element configured to heat and vaporize the material to be vaporized in the absorber, and including a first electrode portion, a second electrode portion, and an electrically conductive connecting member connected between the first electrode portion and the second electrode portion; a porous cover layer having a rectangular shape and covering at least a portion of the heating element without covering the first and second electrode portions, wherein a ratio of an area of the porous cover layer to an area of the electrically conductive connecting member is defined as a covering ratio, wherein the porous cover layer extends along the electrically conductive connecting member and covers all portions of the electrically conductive connecting member, wherein the covering ratio is at least 100%, wherein a porosity of the porous cover layer ranges from 30% to 75%, wherein an upper edge of the porous cover layer is distanced from an upper edge of the absorber by a gap (D) and a lower edge of the porous cover layer is distanced from a lower edge of the absorber by the gap (D), and wherein the gap (D) is 0.1 mm-0.6 mm; and a battery providing power to the heating element. ### Claim 8 (depends on 7) The vaporizing apparatus of claim 7, wherein a material of the porous cover layer is selected from aluminum oxide, silicon carbide, sodium silicate, ferrite, active carbon, kaolinite, halloysite, montmorillonite, calcium phosphate, zeolite, vermiculite, diatomite, palygorskite, sepiolite, perlite, or any combination thereof. ### Claim 9 (depends on 7) The vaporizing apparatus of claim 7, wherein the covering ratio is in a range of 100%-800%. ### Claim 10 (depends on 7) The vaporizing apparatus of claim 7, wherein the porous cover layer covers the entirety of a bottom surface of the absorber without covering the first and second electrode portions. ### Claim 11 (depends on 7) The vaporizing apparatus of claim 7, wherein the porous cover layer has a thickness of 10 μm-200 μm.