# US 2021/0274838 A1 · Tip device for electronic vaping device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0274838 A1 - Document ID: US20210274838A1 - Status: Published application - Kind: A1 - Application number: 17/329,522 - Filed: 2021-05-25 - Published: 2021-09-09 - Earliest claimed: 2017-12-29 - Assignees: Altria Client Services LLC - Applicants: Altria Client Services LLC - Inventors: Munmaya K. MISHRA; Raymond LAU; Zack BLACKMON; Kelli MCKENNA - Web page: https://patentgrep.com/patent/US20210274838A1 ## CPC - A24F 13/02: Cigar or cigarette holders (mouthpieces A24F7/00; producing tubular cigar or cigarette holders from plastics or from substances in a plastic state B29D23/14) - A24F 7/00: Mouthpieces for pipes; Mouthpieces for cigar or cigarette holders - A24F 40/30: Devices using two or more structurally separated inhalable precursors, e.g. using two liquid precursors in two cartridges - A24F 40/485: Valves; Apertures - A61M 15/0021: {Mouthpieces therefor} - H05B 3/44: heating conductor arranged within rods or tubes of insulating material - A24D 3/043: {with ventilation means, e.g. air dilution (A24D3/041 takes precedence)} - A24F 40/10: Devices using liquid inhalable precursors - A24F 40/20: Devices using solid inhalable precursors - A61M 11/042: {electrical} - A61M 2205/3334: Measuring or controlling the flow rate - A61M 2205/3653: by Joule effect, i.e. electric resistance - A61M 2205/8212: with means or measures taken for minimising energy consumption - 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)} - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - A24D: CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES ## Abstract A tip device for an electronic vaping device may include a first conduit structure and a second conduit structure. The first conduit structure may be configured to direct a generated vapor through a first conduit. The second conduit structure may be configured to direct an air flow from an ambient environment through a second conduit. The second conduit structure may include an additive material on a surface of the second conduit structure, the additive material including an additive, the additive material configured to release the additive into the air flow directed through the second conduit. An interposing structure of the first conduit structure and the second conduit structure may physically isolate the additive material from the first conduit, such that the additive material is configured to release the additive into the air flow directed through the second conduit independently of the generated vapor directed through the first conduit. ## Claims ### Claim 1 A tip device for an electronic vaping device (EVD), the tip device comprising: a first conduit structure having a surface at least partially defining a first conduit having an inlet end and an outlet end opposite the inlet end, the first conduit structure configured to receive a generated vapor from an external source via the inlet end of the first conduit and direct the received generated vapor through the first conduit towards the outlet end of the first conduit; a second conduit structure having a surface at least partially defining a second conduit having an inlet end and an outlet end opposite the inlet end, the second conduit structure configured to receive an air flow from an ambient environment via the inlet end of the second conduit and direct the air flow through the second conduit towards the outlet end of the second conduit, the second conduit structure including an additive material on a surface of the second conduit structure, the additive material including an additive, the additive material configured to release the additive into the air flow directed through the second conduit; and an additional additive assembly in fluid communication with the first conduit, the additional additive assembly configured to release an additional additive into the generated vapor that is directed through the first conduit, such that the air flow directed through the outlet end of the second conduit includes the additive, and the generated vapor directed through the outlet end of the first conduit includes the additional additive, wherein at least an interposing structure of the first conduit structure and the second conduit structure physically isolates the additive material from the first conduit, such that the additive material is configured to release the additive into the air flow directed through the second conduit independently of the generated vapor directed through the first conduit. ### Claim 2 (depends on 1) The tip device of claim 1, further comprising: an outlet assembly configured to receive the air flow and the generated vapor from the respective outlet ends of the first and second conduits, mix the air flow and the generated vapor to establish a mixed vapor, and direct the mixed vapor out of the tip device. ### Claim 3 (depends on 1) The tip device of claim 1, wherein the interposing structure is common to both the first conduit structure and the second conduit structure, such that the interposing structure at least partially defines both the first conduit and the second conduit. ### Claim 4 (depends on 3) The tip device of claim 3, wherein the interposing structure includes opposite surfaces at least partially defining separate conduits of the first conduit and the second conduit. ### Claim 5 (depends on 1) The tip device of claim 1, wherein the interposing structure includes a hollow cylindrical structure having an inner surface and an outer surface extending along a longitudinal axis; the first conduit is a cylindrical conduit; and the second conduit is an annular conduit surrounding the first conduit and extending coaxially with the first conduit along the longitudinal axis, the second conduit at least partially defined by at least the outer surface of the interposing structure. ### Claim 6 (depends on 5) The tip device of claim 5, wherein the additive material is on the outer surface of the interposing structure. ### Claim 7 (depends on 1) The tip device of claim 1, wherein the additive material includes an adsorbent material. ### Claim 8 (depends on 1) The tip device of claim 1, further comprising: an adjustable flow control assembly coupled to the inlet end of the second conduit, the adjustable flow control assembly configured to adjustably control an effective cross-sectional flow area of the inlet end to control a flow rate of air drawn into the second conduit via the inlet end of the second conduit. ### Claim 9 An e-vaping device, comprising: a vaporizer assembly configured to form a generated vapor; and a tip device in fluid communication with the vaporizer assembly, the tip device including, a first conduit structure having a surface at least partially defining a first conduit having an inlet end and an outlet end opposite the inlet end, the first conduit structure configured to receive the generated vapor from the vaporizer assembly via the inlet end of the first conduit and direct the received generated vapor through the first conduit towards the outlet end of the first conduit; a second conduit structure having a surface at least partially defining a second conduit having an inlet end and an outlet end opposite the inlet end, the second conduit structure configured to receive an air flow from an ambient environment via the inlet end of the second conduit and direct the air flow through the second conduit towards the outlet end of the second conduit, the second conduit structure including an additive material on a surface of the second conduit structure, the additive material including an additive, the additive material configured to release the additive into the air flow directed through the second conduit; and an additional additive structure in fluid communication with the first conduit, the additional additive structure configured to release an additional additive into the generated vapor that is directed through the first conduit, such that the air flow directed through the outlet end of the second conduit includes the additive, and the generated vapor directed through the outlet end of the first conduit includes the additional additive, wherein at least an interposing structure of the first conduit structure and the second conduit structure physically isolates the additive material from the first conduit, such that the additive material is configured to release the additive into the air flow directed through the second conduit independently of the generated vapor directed through the first conduit; and a power supply section configured to supply power to the vaporizer assembly. ### Claim 10 (depends on 9) The e-vaping device of claim 9, the tip device further including an outlet assembly configured to receive the air flow and the generated vapor from the respective outlet ends of the first and second conduits, mix the air flow and the generated vapor to establish a mixed vapor, and direct the mixed vapor out of the tip device. ### Claim 11 (depends on 9) The e-vaping device of claim 9, wherein the interposing structure is common to both the first conduit structure and the second conduit structure, such that the interposing structure at least partially defines both the first conduit and the second conduit. ### Claim 12 (depends on 11) The e-vaping device of claim 11, wherein the interposing structure includes opposite surfaces defining separate conduits of the first conduit and the second conduit. ### Claim 13 (depends on 9) The e-vaping device of claim 9, wherein the power supply section includes a rechargeable battery. ### Claim 14 (depends on 9) The e-vaping device of claim 9, wherein the tip device is reversibly coupled to the vaporizer assembly. ### Claim 15 (depends on 9) The e-vaping device of claim 9, the tip device further including an adjustable flow control assembly coupled to the inlet end of the second conduit, the adjustable flow control assembly configured to adjustably control an effective cross-sectional flow area of the inlet end to control a flow rate of air drawn into the second conduit via the inlet end of the second conduit. ### Claim 16 A method of operation of a tip device, the tip device configured to be reversibly coupled to an external source, the external source configured to generate a generated vapor, the method comprising: receiving, at an inlet end of a first conduit at least partially defined by a first conduit structure, the generated vapor from the external source; directing the received generated vapor through the first conduit towards an outlet end of the first conduit opposite the inlet end of the first conduit; receiving, at an inlet end of a separate second conduit at least partially defined by a second conduit structure, an air flow from an ambient environment; directing the air flow through the second conduit in fluid communication with an additive material on a surface of the second conduit, such that an additive is released from the additive material into the air flow independently of the generated vapor directed through the first conduit, and further directing the air flow through the second conduit towards an outlet end of the second conduit opposite the inlet end of the second conduit, wherein an interposing structure of the tip device physically isolates the additive material from the first conduit, such that the additive material releases the additive into the air flow directed through the second conduit independently of the generated vapor directed through the first conduit; directing the generated vapor in fluid communication with an additional additive assembly, such that the additional additive assembly releases an additional additive into the generated vapor that is directed through the first conduit, the air flow directed through the outlet end of the second conduit includes the additive, and the generated vapor directed through the outlet end of the first conduit includes the additional additive; and directing the generated vapor directed out of the outlet end of the first conduit and the air flow directed out of the outlet end of the second conduit through a common conduit, such that the generated vapor and the air flow mix to form a mixed vapor. ### Claim 17 (depends on 16) The method of claim 16, wherein the interposing structure includes opposite surfaces defining separate conduits of the first conduit and the second conduit. ### Claim 18 (depends on 16) The method of claim 16, wherein the interposing structure includes a hollow cylindrical structure having an inner surface and an outer surface extending along a longitudinal axis; the first conduit is a cylindrical conduit; and the second conduit is an annular conduit surrounding the first conduit and extending coaxially with the first conduit along the longitudinal axis, the second conduit at least partially defined by at least the outer surface of the interposing structure. ### Claim 19 (depends on 18) The method of claim 18, wherein the additive material is on the outer surface of the interposing structure. ### Claim 20 (depends on 16) The method of claim 16, wherein the additive material includes an adsorbent material.