US 12,144,066 B2
E-vapor device including a compound heater structure
Peter Lipowicz, Midlothian, VA (US)
Assigned to Altria Client Services LLC, Richmond, VA (US)
Filed by Altria Client Services LLC, Richmond, VA (US)
Filed on Feb. 7, 2023, as Appl. No. 18/165,587.
Application 18/165,587 is a continuation of application No. 15/166,450, filed on May 27, 2016, granted, now 11,589,427, issued on Feb. 21, 2023.
Claims priority of provisional application 62/169,082, filed on Jun. 1, 2015.
Prior Publication US 2023/0199916 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A24F 40/44 (2020.01); A24F 40/46 (2020.01); H05B 3/16 (2006.01); A24F 40/10 (2020.01)
CPC H05B 3/16 (2013.01) [A24F 40/44 (2020.01); A24F 40/46 (2020.01); A24F 40/10 (2020.01); H05B 2203/014 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A cartridge for an e-vapor device, comprising:
an outer housing;
an inner tube within the outer housing and defining a central air passage;
a reservoir between the outer housing and the inner tube, the reservoir including a pre-vapor formulation;
a dispensing interface adjacent an opening in the inner tube and in fluidic communication with the reservoir, the dispensing interface being planar and including a first side and a second side; and
a heater structure configured to vaporize the pre-vapor formulation to generate a vapor, the heater structure including,
a base wire configured to apply a spring force against the first side of the dispensing interface, and
a heater wire coiled around the base wire, the base wire being insulated from the heater wire.