E-Liquid Tasting Device Using Venturi Tube for Droplet-Free Puffs

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Solution Overview

Problem

Existing e-liquid tasting devices provide unsatisfactory puffs and are inefficient in delivering a quality experience akin to real e-cigarette puffs, and existing solutions for tasting multiple flavors are either costly or impractical for retailers.

Innovation Solution

A device utilizing a Venturi tube to generate e-liquid vapors by connecting an airflow generator to an e-liquid vaporizer, with a power source and a switch mechanism, ensuring the airflow does not pass through the vaporizer, and incorporating a presence sensor and time-limiting mechanisms to enhance puff quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the airflow passes through the e-liquid vaporizer to deliver vapor, then the user receives e-liquid vapor, but the puff contains droplets and the quality is unsatisfactory

Engineering Contradiction:
Improvepuff qualityVSAvoiddroplets in puff
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent extracts the harmful function (airflow passing through vaporizer causing droplet generation) by separating the vaporization chamber from the airflow path. The airflow generator draws air through the Venturi tube without passing through the vaporizer, while vapor is separately introduced into the airflow path, eliminating droplet contamination.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a Venturi tube as an intermediary device that mediates between the airflow generator and the user's mouth. The Venturi tube creates a low-pressure zone that draws vapor from the vaporizer into the airflow without requiring the airflow to pass through the vaporizer itself, thus preventing droplet formation while maintaining vapor delivery.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If multiple clearomizers are used to taste different flavors, then flavor variety is available, but the device complexity and cost increase

Engineering Contradiction:
Improveflavor varietyVSAvoiddevice structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent makes the airflow generator and Venturi tube universal components that can work with multiple different clearomizers. The airflow path and vaporization chamber are designed to accommodate various clearomizer types, allowing users to taste multiple flavors by simply changing the clearomizer while using the same core device structure.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent segments the device into modular components: a reusable core unit (airflow generator, Venturi tube, housing) and replaceable clearomizers. This segmentation allows the complex airflow generation system to be separated from the flavor-specific clearomizers, reducing overall device complexity while maintaining flavor variety.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If the switch controls both airflow generator and vaporizer, then operation is simplified, but accidental activation may occur

Engineering Contradiction:
Improveswitch operationVSAvoidactivation control
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent incorporates a presence sensor that provides feedback about user presence to the control system. The switch only activates the vaporizer and airflow generator when the sensor detects that the user is present (mouthpiece positioned correctly), preventing accidental activation while maintaining simple switch operation.

Inventive Principle:
Principle #23Feedback

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

Delivers a smoother, droplet-free puff experience that mimics real e-cigarette puffs, allowing efficient tasting of multiple flavors without accidental activation and maintaining flavor separation.

Implementation Method 1

a Venturi tube (10) comprising an inlet chamber (11) and an outlet chamber (12) connected together by a constriction zone (13) of smaller section than the section of the inlet and outlet chambers

Methodology Applied
Scientific EffectVenturi effect: Venturi Effect

Data Source

PatentEP4166016B1Device for tasting e-liquids
Publication Date: 2025.08.27 GAIATREND SARL
  • EP4166016B1 patent drawingFigure 1
  • EP4166016B1 patent drawingFigure 2
  • EP4166016B1 patent drawingFigure 3

AI summary

The invention relates to a device (1) for tasting e-liquids comprising: - a first connection means (15) for connecting an e-liquid vaporizer (30); - an airflow generator for drawing the e-liquid vapors generated by the e-liquid vaporizer (30); - a power source for operating the airflow generator and the e-liquid vaporizer (30). The device is further equipped with a Venturi tube (10) comprising an inlet chamber (11) and an outlet chamber (12) connected together by a constriction zone (13) and a lateral conduit (14) opening into the constriction zone (13) or into the outlet chamber (12); - the airflow generator being connected to the inlet chamber (11); and - the free end of the lateral conduit (14), opposite the constriction zone or outlet chamber, being provided with the first connection means (15).