Volatile Substance Diffuser With Threadless Wick Adjustment

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Solution Overview

Problem

Existing devices for diffusing volatile substances face issues with incompatible opening and regulation movements, limited airflow due to external threads, and inadequate wick exposure adjustment, leading to inefficient evaporation.

Innovation Solution

A device with a container and upper closing element connected by a threadless neck groove, allowing lateral movement for wick adjustment, enabling precise control of evaporation through defined positions and improved airflow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If an external thread is used to connect the container and upper element, then the connection is robust, but air flow is blocked and evaporation is limited

Engineering Contradiction:
Improveconnection strengthVSAvoidevaporation rate
Core Design Contradiction:
StrengthVSProductivity

Solution Approach 1:

The connection system is divided into two independent parts: an internal thread for robust closure and a threadless neck groove for air flow. This segmentation allows the closing function and ventilation function to operate independently without interfering with each other.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The external thread is removed from the design. Instead, only an internal thread within the upper element and a threadless neck groove on the container are used. This extraction eliminates the air flow blockage caused by external threads while maintaining connection strength through the internal threading system.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If the upper element is fixed to prevent opening, then security is improved, but adjustment of wick exposure is prevented

Engineering Contradiction:
Improveclosure securityVSAvoidwick adjustment capability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The upper element is designed with dynamic characteristics, allowing it to be securely closed through internal threading while simultaneously enabling easy opening and adjustment movements. The element can transition between a fixed closed state and a movable adjustment state.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The functions of secure closure and adjustable regulation are separated into different mechanical mechanisms: internal threading provides secure closure, while the threadless neck groove interface enables independent adjustment movements.

Inventive Principle:
Principle #1Segmentation

3Device complexity

If the opening movement and regulation movement are combined, then device complexity is reduced, but the movements become incompatible

Engineering Contradiction:
Improvemechanism complexityVSAvoidmovement compatibility
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The device separates opening/closing movements from regulation movements by using distinct mechanical interfaces: internal threading handles opening/closing while the threadless neck groove handles regulation, allowing both functions to operate independently and compatibly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The external thread is removed to eliminate the conflict between opening movement and regulation movement. This allows the upper element to move laterally for adjustment without interfering with the opening/closing function.

Inventive Principle:
Principle #2Taking out (Extraction)

4Strength

If the internal space around the wick is enclosed, then structural integrity is improved, but air flow and evaporation are limited

Engineering Contradiction:
Improvestructural integrityVSAvoidevaporation efficiency
Core Design Contradiction:
StrengthVSProductivity

Solution Approach 1:

The container structure has different properties in different locations: the body maintains enclosed structural integrity while the neck region features a threadless groove that creates localized air flow channels, providing both strength and evaporation efficiency.

Inventive Principle:
Principle #3Local quality

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

Enables robust, efficient, and adjustable diffusion of volatile substances by ensuring compatible opening and regulation movements, enhancing airflow and evaporation control.

Implementation Method 1

a wick (3) jointed to the closing element (2), which is soaked with the liquid volatile substance

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

the lower end of the wick (3) protrudes into the liquid, while the upper end protrudes from the liquid and from the container (1)... diffuses its scent or any other features to the air space surrounding the device

Methodology Applied
Scientific EffectEvaporation: Evaporation

Implementation Method 3

diffuses its scent or any other features to the air space surrounding the device

Methodology Applied
Scientific EffectDiffusion: Diffusion

Data Source

PatentEP4247443B1Device for diffusing volatile substances
Publication Date: 2025.09.10 ZOBELE HLDG SPA
  • EP4247443B1 patent drawingFigure 1~2
  • EP4247443B1 patent drawingFigure 3a~3c
  • EP4247443B1 patent drawingFigure 4a~4c

AI summary

Device for diffusing volatile substances that comprises a container (1), an upper closing element (2) which closes the opening of the container (1) and a wick (3) jointed to the closing element (2). The container (1) comprises an opening, a reservoir containing a predetermined volume of a liquid volatile substance, and a lower neck (6). The closing element (2) further comprises at least one internal perimetral grove (4), and the lower neck (6) of the container (1) further comprises a groove with no thread pitch (7) in turn comprising protrusions (9) so that the internal perimetral grove (4) and the groove with no thread pitch (7) work together for an adjustment on a fixed pre-determined position of the upper closing element (2) with regards to the container (1).