Capless Degassing Valve Assembly for Recyclable Airtight Containers
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Solution Overview
Problem
Existing degassing valves for airtight containers face challenges in achieving eco-sustainability, material efficiency, and compliance with recycling and composting regulations while maintaining effectiveness.
Innovation Solution
A degassing valve design that eliminates the need for a cap by using a viscous layer and retaining elements, allowing for a 30% reduction in material usage, and is made from recyclable or biodegradable materials, ensuring compliance with environmental regulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If a traditional degassing valve design with a cap is used, then the valve structure is complete and functional, but the material consumption is high and environmental impact is increased
Solution Approach 1:
The patent removes the cap component from the traditional valve structure, extracting only the essential functional elements (main body with opening, covering element, viscous layer, and retaining elements). This elimination of unnecessary parts directly reduces material consumption while preserving the core degassing function.
Solution Approach 2:
The retaining elements are integrated directly into the main body as protrusions, merging what would traditionally be separate components. This integration reduces the total number of parts and material usage while maintaining the structural integrity and functionality of the valve.
2Ease of manufacture
If a degassing valve with reduced material usage is designed, then environmental sustainability is improved, but manufacturing complexity increases
Solution Approach 1:
The viscous layer is applied to the inner surface of the main body before assembling the covering element, ensuring proper sealing and positioning is established in advance. This preliminary action simplifies the assembly process and ensures consistent manufacturing quality without requiring complex post-assembly adjustments.
Solution Approach 2:
The covering element is designed to be retained by the protrusions through its own elastic deformation when pressed against the viscous layer, eliminating the need for additional fastening mechanisms or complex assembly tools. The structure self-secures during assembly, improving manufacturing simplicity.
3Reliability
If traditional valve materials are used, then structural integrity is maintained, but recyclability and compostability are reduced
Solution Approach 1:
The patent employs a covering element made from the same elastomeric material as the viscous layer, creating a homogeneous material structure. This uniformity enables the entire valve to be processed together through recycling or composting facilities, improving material versatility and environmental sustainability while maintaining structural integrity through consistent material properties.
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 new design reduces material consumption by 30% and facilitates recycling or composting, aligning with current regulations and minimizing environmental impact.
Implementation Method 1
A viscous layer is arranged between the main body and the covering element, so as to surround the opening
Implementation Method 2
The step of locking the covering element comprises a sub-step of localized plastic deformation of the protrusions to close them on the covering element
Data Source
AI summary
The present disclosure concerns a method for making a degassing valve for an airtight container. The valve comprises a main body having a central axis and having at least one opening for the passage of a gas and a seat at least partly superimposed on the opening; a covering element inserted in the seat of the main body to open and/or close the opening, a viscous layer arranged between the main body and the covering element and surrounding the opening. A feature of the valve is that of comprising a plurality of retaining elements realized integral with the main body and surrounding the covering element and at least partly superimposed on the covering element to retain it in proximity to the main body.