# US 10,440,994 B2 · Vaporizer assembly for e-vaping device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,440,994 B2 - Document ID: US10440994B2 - Status: Granted - Kind: B2 - Application number: 15/342,415 - Filed: 2016-11-03 - Published: 2018-05-03 - Granted: 2019-10-15 - Earliest claimed: 2016-11-03 - Assignees: Altria Client Services LLC - Applicants: Altria Client Services LLC - Inventors: Ali A. Rostami - Web page: https://patentgrep.com/patent/US10440994B2 ## CPC - A24F 40/44: Wicks - A24F 40/46: Shape or structure of electric heating means - H05B 1/0244: {Heating of fluids (H05B1/0247 takes precedence)} - H05B 3/03: Electrodes - A24F 40/10: Devices using liquid inhalable precursors - H05B 2203/021: Heaters specially adapted for heating liquids - A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06) - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL ## Abstract A vaporizer assembly for an e-vaping device includes a heater coil structure, a set of electrical lead structures coupled to opposite ends of the heater coil structure, and a non-conductive connector structure connected to each of the electrical lead structures, such that the electrical lead structures are coupled together independently of the heater coil structure. The vaporizer assembly may contact a dispensing interface structure through the heater coil structure. The vaporizer assembly may heat pre-vapor formulation drawn from a reservoir by the dispensing interface. The heater coil structure may define a surface, and the vaporizer assembly may apply a mechanical force to the dispensing interface structure, such that the heater coil structure is in compression with the dispensing interface structure and the heater coil structure surface is substantially flush with a surface of the dispensing interface structure. The heater coil structure may define a three-dimensional surface. ## Claims ### Claim 1 A vaporizer assembly for an e-vaping device, the vaporizer assembly comprising: a heater coil structure; a set of two electrical lead structures, the electrical lead structures coupled to opposite ends of the heater coil structure; and a non-conductive connector structure connected to each of the electrical lead structures, such that the electrical lead structures are coupled together independently of the heater coil structure, wherein the vaporizer assembly is configured to contact a dispensing interface structure through the heater coil structure, such that the vaporizer assembly is configured to heat pre-vapor formulation drawn from a reservoir by the dispensing interface structure, wherein the vaporizer assembly is configured to apply a mechanical force to the dispensing interface structure through the electrical lead structures and the heater coil structure, such that both the heater coil structure and the electrical lead structures are in compression with the dispensing interface structure, and a surface of the heater coil structure is substantially flush with a surface of the dispensing interface structure. ### Claim 2 (depends on 1) The vaporizer assembly of claim 1, wherein the heater coil structure defines a three-dimensional (3-D) surface. ### Claim 3 (depends on 2) The vaporizer assembly of claim 2, wherein the 3-D surface is a substantially conical surface. ### Claim 4 (depends on 1) The vaporizer assembly of claim 1, wherein, at least one electrical lead structure, of the set of two electrical lead structures, includes an interior portion and a surface portion, and the surface portion is associated with a reduced conductivity, in relation to the interior portion. ### Claim 5 A cartridge for an e-vaping device, the cartridge comprising: a reservoir configured to hold a pre-vapor formulation; a dispensing interface structure coupled to the reservoir, the dispensing interface structure configured to draw the pre-vapor formulation from the reservoir; and a vaporizer assembly in contact with the dispensing interface structure, the vaporizer assembly configured to heat the drawn pre-vapor formulation, the vaporizer assembly including, a heater coil structure, a set of two electrical lead structures, the electrical lead structures coupled to opposite ends of the heater coil structure, and a non-conductive connector structure connected to each of the electrical lead structures, such that the electrical lead structures are coupled together independently of the heater coil structure, wherein the vaporizer assembly is configured to contact the dispensing interface structure through the heater coil structure, wherein the vaporizer assembly is configured to apply a mechanical force to the dispensing interface structure through the electrical lead structures and the heater coil structure, such that both the heater coil structure and the electrical lead structures are in compression, and a surface of the heater coil structure is substantially flush with a surface of the dispensing interface structure. ### Claim 6 (depends on 5) The cartridge of claim 5, wherein the heater coil structure defines a three-dimensional (3-D) surface. ### Claim 7 (depends on 6) The cartridge of claim 6, wherein the 3-D surface is a substantially conical surface. ### Claim 8 (depends on 5) The cartridge of claim 5, wherein, at least one electrical lead structure, of the set of two electrical lead structures, includes an interior portion and a surface portion, and the surface portion is associated with a reduced conductivity, in relation to the interior portion. ### Claim 9 An e-vaping device, comprising: a cartridge, including, a reservoir configured to hold a pre-vapor formulation; a dispensing interface structure coupled to the reservoir, the dispensing interface structure configured to draw the pre-vapor formulation from the reservoir; and a vaporizer assembly in contact with the dispensing interface structure, the vaporizer assembly configured to heat the drawn pre-vapor formulation, the vaporizer assembly including, a heater coil structure, a set of two electrical lead structures, the electrical lead structures coupled to opposite ends of the heater coil structure, and a non-conductive connector structure connected to each of the electrical lead structures, such that the electrical lead structures are coupled together independently of the heater coil structure; and a power supply section coupled to the cartridge, the power supply section configured to supply electrical power to the vaporizer assembly, wherein the vaporizer assembly is configured to contact the dispensing interface structure through the heater coil structure, wherein the vaporizer assembly is configured to apply a mechanical force to the dispensing interface structure through the electrical lead structures and the heater coil structure, such that both the heater coil structure and the electrical lead structures are in compression, and a surface of the heater coil structure is substantially flush with a surface of the dispensing interface structure. ### Claim 10 (depends on 9) The e-vaping device of claim 9, wherein the heater coil structure defines a three-dimensional (3-D) surface. ### Claim 11 (depends on 10) The e-vaping device of claim 10, wherein the 3-D surface is a substantially conical surface. ### Claim 12 (depends on 9) The e-vaping device of claim 9, wherein the power supply section includes a rechargeable battery. ### Claim 13 (depends on 9) The e-vaping device of claim 9, wherein the cartridge and the power supply section are removably coupled together. ### Claim 14 (depends on 9) The e-vaping device of claim 9, wherein, at least one electrical lead structure, of the set of two electrical lead structures, includes an interior portion and a surface portion, and the surface portion is associated with a reduced conductivity, in relation to the interior portion.