US 11,991,793 B2
Unitary heating element and heater assemblies, cartridges, and e-vapor devices including a unitary heating element
Arie Holtz, Jerusalem (IL); and Isaac Weigensberg, Tekoa (IL)
Assigned to Altria Client Services LLC, Richmond, VA (US)
Filed by Altria Client Services LLC, Richmond, VA (US)
Filed on May 4, 2021, as Appl. No. 17/307,513.
Application 17/307,513 is a continuation of application No. 15/135,930, filed on Apr. 22, 2016, granted, now 11,083,229.
Claims priority of provisional application 62/151,809, filed on Apr. 23, 2015.
Prior Publication US 2021/0259055 A1, Aug. 19, 2021
Int. Cl. H05B 3/06 (2006.01); A24F 40/44 (2020.01); A24F 40/46 (2020.01); A24F 40/485 (2020.01); F22B 1/28 (2006.01); H05B 3/14 (2006.01); H05B 3/16 (2006.01); A24F 40/10 (2020.01)
CPC H05B 3/06 (2013.01) [A24F 40/44 (2020.01); A24F 40/46 (2020.01); A24F 40/485 (2020.01); F22B 1/284 (2013.01); H05B 3/141 (2013.01); H05B 3/16 (2013.01); A24F 40/10 (2020.01); H05B 2203/017 (2013.01); H05B 2203/021 (2013.01); H05B 2203/022 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A heating element for an e-vapor device, comprising:
a planar portion including a filament defining an air channel through a central portion of the planar portion, the filament extending in a circular shape about the air channel, the filament arranged so as to form a plurality of u-shaped portions extending radially from the air channel, tips of the plurality of u-shaped portions extending away from the air channel, and a first one of the plurality of u-shaped portions being beside a last one of the plurality of u-shaped portions, each of the plurality of u-shaped portions including an end section opposite the tips of the plurality of u-shaped portions, the end section of each of the plurality of u-shaped portions adjacent the air channel, the end section of each of the plurality of u-shaped portions having a first width, and the tips of the plurality of u-shaped portions having a second width greater than the first width.