Cartridge for electronic vaping device

Abstract

A cartridge for an e-vaping device enables separate vapors to be formed proximate to separate, respective ends of the cartridge. The cartridge includes multiple reservoirs and separate vaporizer assemblies coupled to separate reservoirs on opposite ends of the reservoirs. The separate reservoirs may hold separate pre-vapor formulations. The separate vaporizer assemblies may draw separate pre-vapor formulations from separate reservoirs towards opposite ends of the cartridge and vaporize the separate pre-vapor formulations via operation of separate heaters proximate to the separate ends. The separate heaters may be independently controlled to independently control vapor formation at the separate ends. The heaters may be controlled to independently control vapor formation rates proximate to the separate ends. The heaters may be controlled to form separate vapors at least one of simultaneously, concurrently, and at different times.

We claim: 
     
         1 . A cartridge for an e-vaping device, comprising:
 a housing including a first end and a second end;   a first reservoir within the housing configured to hold a first pre-vapor formulation;   at least a second reservoir within the housing configured to hold a second pre-vapor formulation;   a first vaporizer assembly coupled to an end of the first reservoir adjacent the first end of the housing, the first vaporizer assembly configured to vaporize the first pre-vapor formulation to generate a first vapor; and   at least a second vaporizer assembly coupled to the second reservoir adjacent the second end of the housing, the second vaporizer assembly configured to vaporize the second pre-vapor formulation to generate a second vapor.   
     
     
         2 . The cartridge of  claim 1 , wherein:
 the first vaporizer assembly includes,
 a first dispensing interface configured to draw the first pre-vapor formulation from the first reservoir, and 
 a first heater coupled to the first dispensing interface, the first heater being configured to vaporize the drawn first pre-vapor formulation; and 
   the second vaporizer assembly includes,
 a second dispensing interface configured to draw the second pre-vapor formulation from the second reservoir, and 
 a second heater coupled to the second dispensing interface, the second heater being configured to vaporize the drawn second pre-vapor formulation. 
   
     
     
         3 . The cartridge of  claim 2 , wherein:
 the first dispensing interface includes,
 a first trunk, and 
 a first root extending from the first trunk, the first root fluidly coupled to the first reservoir; and 
   the second dispensing interface includes,
 a second trunk, and 
 a second root extending from the second trunk, the second root fluidly coupled to the second reservoir. 
   
     
     
         4 . The cartridge of  claim 3 , wherein:
 the first heater is coupled to the first trunk; and   the second heater is coupled to the second trunk.   
     
     
         5 . The cartridge of  claim 2 , wherein the first dispensing interface includes a porous material, the porous material being arranged in fluidic communication with the first heater. 
     
     
         6 . The cartridge of  claim 5 , wherein the porous material is a wick having an elongated form and arranged in fluidic communication with the first reservoir. 
     
     
         7 . The cartridge of  claim 6 , wherein the wick extends at least partially through the first heater. 
     
     
         8 . The cartridge of  claim 2 , wherein the first and second heaters include different materials. 
     
     
         9 . The cartridge of  claim 1 , wherein the first vaporizer assembly and the second vaporizer assembly are configured to generate the first and second vapors at different rates. 
     
     
         10 . The cartridge of  claim 1 , wherein the first vaporizer assembly and the second vaporizer assembly are configured to generate the first and second vapors at different times. 
     
     
         11 . An aerosol-generating system, comprising:
 a cartridge, the cartridge including,
 a housing including a first end and a second end, 
 a first reservoir within the housing configured to hold a first pre-vapor formulation, 
 at least a second reservoir within the housing configured to hold a second pre-vapor formulation, 
 a first vaporizer assembly coupled to an end of the first reservoir adjacent the first end of the housing, the first vaporizer assembly configured to vaporize the first pre-vapor formulation to generate a first vapor, and 
 at least a second vaporizer assembly coupled to the second reservoir adjacent the second end of the housing, the second vaporizer assembly configured to vaporize the second pre-vapor formulation to generate a second vapor; and 
   a power supply section configured to selectively supply power to the first and second vaporizer assemblies, the power supply section including control circuitry.   
     
     
         12 . The aerosol-generating system of  claim 11 , wherein:
 the first vaporizer assembly includes,
 a first dispensing interface configured to draw the first pre-vapor formulation from the first reservoir, and 
 a first heater coupled to the first dispensing interface, the first heater being configured to vaporize the drawn first pre-vapor formulation; and 
   the second vaporizer assembly includes,
 a second dispensing interface configured to draw the second pre-vapor formulation from the second reservoir, and 
 a second heater coupled to the second dispensing interface, the second heater being configured to vaporize the drawn second pre-vapor formulation. 
   
     
     
         13 . The aerosol-generating system of  claim 12 , wherein:
 the first dispensing interface includes,
 a first trunk, and 
 a first root extending from the first trunk, the first root fluidly coupled to the first reservoir; and 
   the second dispensing interface includes,
 a second trunk, and 
 a second root extending from the second trunk, the second root fluidly coupled to the second reservoir. 
   
     
     
         14 . The aerosol-generating system of  claim 13 , wherein:
 the first heater is coupled to the first trunk; and   the second heater is coupled to the second trunk.   
     
     
         15 . The aerosol-generating system of  claim 12 , wherein the first dispensing interface includes a porous material, the porous material being arranged in fluidic communication with the first heater. 
     
     
         16 . The aerosol-generating system of  claim 15 , wherein:
 the porous material is a wick having an elongated form and arranged in fluidic communication with the first reservoir; and   the wick extends at least partially through the first heater.   
     
     
         17 . The aerosol-generating system of  claim 11 , wherein the control circuitry is configured to independently control vapor generation by the first vaporizer assembly and the second vaporizer assembly. 
     
     
         18 . The aerosol-generating system of  claim 17 , wherein the control circuitry is configured to independently control vapor generation by the first and second vaporizer assemblies based on independently controlling power supplied to the first vaporizer assembly and the second vaporizer assembly. 
     
     
         19 . The aerosol-generating system of  claim 11 , wherein the control circuitry is configured to cause the first vaporizer assembly and the second vaporizer assembly to generate the first vapor and the second vapor at different times, based on independently first vaporizer assembly and the second vaporizer assembly. 
     
     
         20 . The aerosol-generating system of  claim 11 , wherein the control circuitry is configured to activate a first heater included in the first vaporizer assembly, such that a viscosity of the second pre-vapor formulation is reduced, prior to controlling the second vaporizer assembly to vaporize the second pre-vapor formulation.