Multi-Cartridge E-Vaping Control to Prevent Formulation Degradation

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Solution Overview

Problem

E-vaping devices with multiple formulations can experience degradation due to reactions between formulations stored in a shared reservoir, leading to reduced shelf-life and degraded sensory experience.

Innovation Solution

An e-vaping device with independent control circuitry and connectors for separate cartridges, allowing for separate power supply and communication links to manage dispersion generation independently, preventing formulation reactions by isolating and controlling power supply to each cartridge.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple formulations are stored in a shared reservoir, then the device can provide multiple sensory experiences, but the formulations react with each other causing degradation and reducing shelf-life

Engineering Contradiction:

Improvesensory experience varietyVSAvoidformulation stability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The device divides the formulation storage system into separate cartridges, each containing a single formulation. This segmentation prevents direct contact and chemical reactions between different formulations while maintaining the ability to provide multiple sensory experiences by swapping cartridges.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary mechanism (the cartridge system with connectors) that allows the device to handle multiple formulations without them directly interacting. The cartridge acts as a mediator between the formulation and the vaporization system, enabling formulation isolation.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If multiple formulations are stored separately in individual cartridges, then formulation reactions are prevented, but the device complexity increases with multiple connectors and control circuits

Engineering Contradiction:

Improveformulation stabilityVSAvoidconnector and control circuit quantity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements a universal connector design that can interface with multiple cartridge types while maintaining a consistent connection protocol. The control circuitry is designed to universally recognize and manage different cartridges through standardized communication, reducing the need for separate control paths for each cartridge.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the control functions for multiple cartridges into a single integrated control circuit that can independently manage each cartridge through shared communication resources. This consolidation reduces the overall complexity compared to having separate control circuits for each cartridge.

Inventive Principle:

Principle #5Merging (Combining)

3Productivity

If power is supplied to multiple cartridges simultaneously, then all formulations can be vaporized, but heat generated causes formulation degradation and reduces shelf-life

Engineering Contradiction:

Improvedispersion generation capacityVSAvoidheat-induced degradation

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The control circuitry implements periodic or sequential activation of cartridges rather than continuous simultaneous operation. By controlling power supply in time-separated intervals, the system maintains vaporization capability while allowing heat dissipation between activation cycles, preventing heat-induced formulation degradation.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The patent employs dynamic power management that adjusts power supply to cartridges based on real-time conditions. The system can selectively activate only the required cartridge or alternate between cartridges, dynamically optimizing between productivity and heat management rather than using a fixed simultaneous power supply mode.

Inventive Principle:

Principle #15Dynamics

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

Prevents formulation degradation by isolating and controlling power supply to each cartridge, maintaining sensory experience quality and extending device shelf-life.

Implementation Method 1

a vaporizer assembly configured to vaporize a pre-vapor formulation to generate a vapor

Methodology Applied

Scientific EffectVaporization: Evaporation

Implementation Method 2

an atomizer assembly configured to atomize a pre-aerosol formulation via applying mechanical force to the pre-aerosol formulation

Methodology Applied

Scientific EffectMechanical atomization: Mechanical Force

Data Source

PatentUS12453379B2Multiple dispersion generator e-vaping device

Publication Date: 2025.10.28 ALTRIA CLIENT SERVICES LLC

AI summary

A base for an e-vaping device is configured to couple with multiple cartridges configured to generate separate, respective dispersions. The cartridges may include one or more atomizer assemblies or vaporizer assemblies. The base may include multiple connectors electrically coupled to the power supply. The connectors may be configured to couple multiple dispersion generators to a power supply of the base. The base may include control circuitry configured to independently control dispersion generation by dispersion generators coupled to the base. The control circuitry may independently control dispersion generation by the first and second cartridges based on cartridge information accessed through at least one of the first and second connectors. The control circuitry may control dispersion generation by controlling power supplied to the dispersion generators.