Dual-Pump Aerosol Delivery for Combustion-Free Inhalation

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Solution Overview

Problem

Existing smoking devices fail to provide enhanced functionality and efficient delivery of aerosolized substances without significant combustion or chemical alteration, lacking in features that simulate traditional smoking experiences while minimizing harmful by-products.

Innovation Solution

An aerosol delivery device utilizing electrical energy to atomize an aerosol precursor composition, comprising a first pump for air flow and a second pump for liquid flow, with a nozzle to produce an inhalable substance, incorporating components like polyhydric alcohols, nicotine, and botanicals, and featuring a control component to manage pump outputs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If electrical energy is used to vaporize volatile materials instead of combusting tobacco, then harmful combustion by-products are reduced, but the device complexity increases due to the need for pumps and control components

Engineering Contradiction:
Improvecombustion by-productsVSAvoiddevice complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical combustion process with an electrical vaporization system. Instead of burning tobacco mechanically, electrical energy is applied to vaporize volatile materials, eliminating combustion by-products while introducing electrical components and control systems that manage the vaporization process

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent employs pneumatic principles by using a pump to deliver pressurized gas through a porous medium. This pneumatic system facilitates the vaporization and delivery of aerosolized substances without requiring combustion, using fluid dynamics to control the aerosol generation and delivery process

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Productivity

If pumps and control components are added to deliver aerosolized substances, then the functionality and delivery efficiency are enhanced, but the device complexity increases

Engineering Contradiction:
Improvedelivery efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the aerosol delivery system into distinct functional components: a pump for delivering gas, a porous medium for vaporization, and control components for managing the process. This segmentation allows each component to perform its specific function efficiently while maintaining overall system manageability and enabling independent optimization of delivery parameters

Inventive Principle:
Principle #1Segmentation

3Reliability

If a porous medium is used for vaporization, then the aerosolization process is improved, but the manufacturing precision requirements increase

Engineering Contradiction:
Improveaerosolization processVSAvoidmanufacturing precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent utilizes porous materials as the core vaporization medium. The porous structure provides a large surface area for vaporization while maintaining mechanical stability. The controlled porosity allows for consistent aerosol generation, and the material's inherent properties reduce the need for complex manufacturing processes compared to precision-machined alternatives

Inventive Principle:
Principle #31Porous materials

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

The device effectively produces inhalable aerosols with desired characteristics, simulating smoking sensations without combustion, offering customizable active ingredients and a range of functionalities.

Implementation Method 1

a first pump configured to deliver a flow of air

Methodology Applied
Scientific EffectAir flow:

Implementation Method 2

a second pump configured to deliver a flow of liquid composition

Methodology Applied
Scientific EffectLiquid flow:

Implementation Method 3

a nozzle configured to receive the flow of air and the flow of liquid composition and output the liquid in an atomized form

Methodology Applied
Scientific EffectAtomization:

Data Source

PatentEP4203729B1Aerosol delivery device
Publication Date: 2025.09.10 RAI STRATEGIC HOLDINGS INC
  • EP4203729B1 patent drawingFigure 1
  • EP4203729B1 patent drawingFigure 2
  • EP4203729B1 patent drawingFigure 3

AI summary

An aerosol delivery device (100) comprises a first pump (102) configured to deliver a flow of air, a second pump (104) configured to deliver a flow of liquid, and a nozzle (106) configured to receive the flow of air and the flow of liquid and output the liquid in an atomized form. The nozzle may comprise an orifice (108) adapted to spray the atomized liquid.