Welded Valve Assembly for Flexible Aerosol Container Mounting

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Solution Overview

Problem

Existing valve arrangements for aerosol containers are inflexible and costly to produce, often requiring adjustments to the valve itself when switching between different valve plates made of plastic or metal.

Innovation Solution

A valve arrangement that uses a standard valve with a separate fastening part, which can be laser-welded or ultrasonically welded to a valve plate, allowing for the use of different valve plates without adjusting the valve, and can be friction-welded to a container, enabling cost-effective and flexible production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional valve arrangement is used with integrated valve and valve plate, then the valve is firmly connected to the container, but the production cost increases and flexibility decreases when switching between different valve plates

Engineering Contradiction:
Improveflexibility to use different valve platesVSAvoidproduction cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The valve arrangement is divided into separate components: a valve housing containing the valve element, and a separate fastening part that connects the valve housing to the valve plate. This segmentation allows the valve to be reused with different valve plates while maintaining secure connection, reducing production costs and increasing flexibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The valve housing with the separate fastening part serves as a universal component that can be attached to different valve plates (made of plastic or metal) without modification. This multi-functional design enables a single valve assembly to work with multiple valve plate types, eliminating the need for custom valve adjustments for each plate material.

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

2Adaptability or versatility

If a separate fastening part is used to connect the valve housing to the valve plate, then the flexibility to use different valve plates increases, but the device complexity increases

Engineering Contradiction:
Improveflexibility to use different valve platesVSAvoidnumber of components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The fastening part is integrated with the valve housing as a unified assembly, where the fastening part is inserted into the valve housing and secured together. This merging reduces the number of separate components to handle during assembly, simplifying the overall device structure while maintaining the flexibility benefits of having a separate connectable fastening mechanism.

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

This solution allows for easy assembly and use of various valve plates with a standard valve, reducing production costs and increasing flexibility, while ensuring a secure and reliable connection.

Implementation Method 1

the fastening part, which is laser-welded or ultrasonically welded to a valve plate

Methodology Applied
Scientific EffectLaser welding: Laser Beam Welding

Implementation Method 2

the fastening part, which is laser-welded or ultrasonically welded to a valve plate

Methodology Applied
Scientific EffectUltrasonic welding: Ultrasonic Vibration

Implementation Method 3

can be friction-welded to a container

Methodology Applied
Scientific EffectFriction welding: Friction Welding

Data Source

PatentEP3765384B1Valve arrangement and discharge device
Publication Date: 2025.01.22 APTAR DORTMUND GMBH
  • EP3765384B1 patent drawingFigure 1
  • EP3765384B1 patent drawingFigure 2
  • EP3765384B1 patent drawingFigure 3

AI summary

The invention relates to a valve arrangement (2) for discharging a fluid. The valve arrangement (2) has a valve disc (8) for fastening the valve arrangement (2) to a container (3), a valve housing (5), and a fastening portion (11) for fastening the valve housing (5) to the valve disc (8). The fastening portion (11) is welded to the valve disc (8). The invention also relates to a discharge device (1) comprising a container (3) and a valve arrangement (2), and a production method.