Dual-Reservoir E-Vaping Cartridge for Formulation Separation
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Solution Overview
Problem
Existing e-vaping devices face issues with separate pre-vapor formulations reacting with each other in the reservoir, leading to degradation and reduced shelf-life due to the formation of reaction products.
Innovation Solution
The e-vaping device incorporates a housing with separate first and second reservoirs and vaporizer assemblies positioned on opposite ends, each configured to vaporize different pre-vapor formulations independently, using separate dispensing interfaces and heaters, with control circuitry to manage power supply and vapor generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple pre-vapor formulations are held together in a single reservoir, then the device can provide multiple flavor options, but the formulations react with each other causing degradation and reducing shelf-life
Solution Approach 1:
The patent divides the single reservoir into multiple separate reservoirs, each containing a different pre-vapor formulation. This segmentation prevents direct contact and chemical reactions between formulations while maintaining the ability to offer multiple flavors. Each reservoir is independently sealed and positioned within the housing, allowing the device to provide flavor versatility without compromising shelf-life.
2Reliability
If separate reservoirs with separate vaporizer assemblies are used, then formulation reactions are prevented and shelf-life is maintained, but the device complexity increases
Solution Approach 1:
The patent combines multiple reservoirs and vaporizer assemblies into a single integrated cartridge unit. The housing structure unifies the separate components, providing a compact design that prevents formulation reactions while avoiding the complexity of multiple separate devices. The cartridge can be easily replaced as a single unit, simplifying the user experience despite the internal complexity.
3Adaptability or versatility
If separate vaporizer assemblies are positioned on opposite ends of the reservoirs, then independent vapor generation is enabled, but the housing volume increases
Solution Approach 1:
The patent arranges the reservoirs and vaporizer assemblies in a nested configuration where components are positioned efficiently within the housing. The vaporizer assemblies are integrated into the ends of the housing, and reservoirs are positioned to maximize space utilization. This nesting approach enables independent vapor generation from multiple formulations while maintaining a compact overall device volume.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design prevents formulation reactions, maintains shelf-life, and provides an enhanced sensory experience by allowing separate vapors to be generated and drawn at different times and rates, enhancing user satisfaction.
Implementation Method 1
The first heater may be configured to vaporize the drawn first pre-vapor formulation
Implementation Method 2
The first dispensing interface may include a porous material arranged in fluidic communication with the first heater
Data Source
AI summary
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.