US 12,402,657 B2
Electrical vapor provision system without wired electrical connection between a control unit and a cartridge
Rory Fraser, London (GB); Colin Dickens, London (GB); and Siddhartha Jain, London (GB)
Assigned to Nicoventures Trading Limited, London (GB)
Filed by Nicoventures Trading Limited, London (GB)
Filed on Dec. 14, 2023, as Appl. No. 18/539,716.
Application 18/539,716 is a continuation of application No. 17/456,446, filed on Nov. 24, 2021, granted, now 11,882,877.
Application 17/456,446 is a continuation of application No. 15/739,037, granted, now 11,185,110, previously published as PCT/GB2016/051766, filed on Jun. 15, 2016.
Claims priority of application No. 1511359 (GB), filed on Jun. 29, 2015.
Prior Publication US 2024/0108062 A1, Apr. 4, 2024
Int. Cl. A24F 40/42 (2020.01); A24F 40/465 (2020.01); A24F 40/10 (2020.01); A24F 40/30 (2020.01); A24F 40/44 (2020.01); A61M 11/04 (2006.01); A61M 15/06 (2006.01)
CPC A24F 40/42 (2020.01) [A24F 40/465 (2020.01); A24F 40/10 (2020.01); A24F 40/30 (2020.01); A24F 40/44 (2020.01); A61M 11/042 (2014.02); A61M 15/06 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An electronic vapor provision system having a longitudinal axis and comprising:
a control unit including a control unit engagement end and a cartridge including a cartridge engagement end configured to engage with and disengage from one another substantially along said longitudinal axis, and the control unit including a battery and a tube portion disposed along said longitudinal axis, wherein the tube portion comprises an inner wall and an outer wall; and
an induction heating assembly comprising a drive coil and a heater element, wherein the heater element is located in the cartridge, the drive coil being located in the tube portion of the control unit, between the inner wall and the outer wall of the tube portion, and disposed about said longitudinal axis, wherein the cartridge is located at least partly within the inner wall of the tube portion when engaged with said control unit, such that the heater element is within the drive coil,
wherein the control unit is configured such that when the cartridge is engaged with the control unit, a gap is formed between the cartridge engagement end and the control unit engagement end, whereby, in use, air is able to be drawn from the gap through an air inlet of the cartridge provided in the cartridge engagement end; and
wherein the control unit is provided with one or more holes in a housing of the control unit to allow, in use, air to be drawn into the control unit and into the gap.