Single-Plastic Diffusion Device for Recyclable Volatile Substance Delivery

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Solution Overview

Problem

Existing devices for diffusing volatile substances, whether made of glass or plastic, face challenges in recyclability due to mixed materials, leading to contamination and improper recycling, as they require dismantling and separation of different components, which discourages users from recycling.

Innovation Solution

A device made entirely of a single type of plastic, with a porous and capillary wick for diffusion, allowing for efficient recyclability, where the wick is made of the same plastic as the container, eliminating the need for separate components and ensuring easy recycling by being disposed of as a single unit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If glass containers with capillary elements are used for diffusion, then diffusion functionality is achieved, but recyclability deteriorates due to mixed materials being difficult to separate

Engineering Contradiction:
Improvediffusion functionalityVSAvoidrecyclability
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent merges the container body and capillary diffusion elements into a single integrated component made entirely of plastic. The capillary channels are formed directly within the plastic container structure, eliminating the need for separate glass capillary elements and enabling complete recyclability of the device as a single material type.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent uses plastic material with integrated capillary structures to create a composite-like functionality within a single material system. The plastic is formulated or structured to provide both containment and capillary diffusion properties, replacing the traditional glass-capillary combination with a unified plastic solution that maintains diffusion functionality while improving recyclability.

Inventive Principle:
Principle #40Composite materials

2Adaptability or versatility

If plastic containers with multiple components are used, then functionality is improved, but recyclability deteriorates due to mixed plastics being difficult to separate

Engineering Contradiction:
ImprovefunctionalityVSAvoidrecyclability
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent combines the container body, capillary diffusion elements, and closure mechanisms into a single integrated plastic component. This merging of previously separate functional elements into one unified plastic structure eliminates the need for disassembly and separation during recycling, while maintaining all necessary functionalities.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single plastic material and integrated structure serve multiple functions simultaneously: containment of volatile substances, provision of capillary diffusion pathways, and formation of closure mechanisms. This multi-functionality within a single material system eliminates the need for multiple different plastic components that would complicate recycling.

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

3Ease of manufacture

If dismantling is required for recycling, then material separation is achieved, but user convenience deteriorates due to the nuisance of disassembly

Engineering Contradiction:
Improvematerial separationVSAvoiduser convenience
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

By merging all device components into a single integrated plastic structure, the patent eliminates the need for any disassembly operations. The unified design allows users to recycle the entire device by simply depositing it in a recycling container, removing the nuisance of dismantling while maintaining complete material separation through the single-material construction.

Inventive Principle:
Principle #5Merging (Combining)

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

Facilitates efficient and simple recycling of the device by using a single plastic material for all components, ensuring safety, tightness, and economical construction, while maintaining effective diffusion of volatile substances into the air.

Implementation Method 1

a porous and capillary element allowing the substances to be diffused into the surrounding air

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Implementation Method 2

substances that can be evaporated into the air

Methodology Applied
Scientific EffectEvaporation: Evaporation

Data Source

PatentEP4081267B1Device for the diffusion of volatile substances
Publication Date: 2024.04.24 ZOBELE HLDG SPA
  • EP4081267B1 patent drawingFigure 1~2
  • EP4081267B1 patent drawingFigure 3.1~3.3
  • EP4081267B1 patent drawingFigure 4.1~4.2

AI summary

The device for the diffusion of volatile substances comprises a container (1), which holds a liquid with the volatile substances in it, and which has an opening (9), for communication from the inside of the housing (6) to the outside; a cover (2) which can be attached to the container (1) to close the opening (9), a diffusion wick (4) for the controlled diffusion of the volatile substances, one end (13) of which protrudes from the cover (2); and a cap (5) which covers the end (13) of the diffusion wick (4) which protrudes from the cover (2), the container (1), the cover (2), the diffusion wick (4) and the cap (5) being made of the same plastic material. It thus makes it possible to provide more efficient recyclability in accordance with currently existing methods.