Gas Permeable Filter Cap for Peroxide Container Venting
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Solution Overview
Problem
Existing venting systems for containers holding materials liable to exothermic decomposition, such as peroxide formulations, are complex and costly due to their intricate filtering structures, which are necessary to prevent dangerous over-pressures while allowing gas release.
Innovation Solution
A simplified venting system featuring a gas-permeable filter sheet fixed between the neck and flange of a container, with a perforated plastic material and a pop-off cap mechanism to manage pressure, ensuring effective and cost-efficient gas release without liquid leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex filtering structure with multiple filters is used to prevent over-pressure and allow gas release, then the reliability of pressure management is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the filtering function and venting function into a single integrated filter cap assembly. The filter cap serves both as the closing element for the spout opening and as the filtering structure for gas release, eliminating the need for separate filtering components and complex multi-layer filtering systems while maintaining reliable pressure management
Solution Approach 2:
The filter cap performs multiple functions simultaneously: it closes the spout opening, filters decomposed material, allows gas permeation, and provides structural support for the venting system. This multi-functional design reduces overall system complexity while ensuring reliable operation
2Reliability
If a complex filtering structure with multiple filters is used to prevent over-pressure and allow gas release, then the reliability of pressure management is improved, but the manufacturing cost increases
Solution Approach 1:
The patent combines the filtering function and venting function into a single integrated filter cap assembly. The filter cap serves both as the closing element for the spout opening and as the filtering structure for gas release, eliminating the need for separate filtering components and complex multi-layer filtering systems while maintaining reliable pressure management
Solution Approach 2:
The filter cap is designed as a simple, replaceable component that can be easily manufactured and disposed of after use. This approach reduces manufacturing costs by using simpler materials and construction methods while ensuring reliable performance during the product's service life
3Strength
If a hermetically closed container is used to store peroxide formulations, then the containment integrity is improved, but dangerous over-pressure develops due to gas emanation
Solution Approach 1:
The patent employs a porous filter cap that allows gas to permeate through its structure while maintaining liquid containment. The porous structure enables controlled gas release during exothermic decomposition, preventing dangerous over-pressure buildup while preserving the container's containment integrity for the stored material
Solution Approach 2:
The filter cap acts as an intermediary element between the hermetically sealed container interior and the external environment. It mediates the gas release process by allowing controlled permeation of decomposed gases while maintaining the overall containment integrity of the container system
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 solution provides a cost-effective and efficient means to manage pressure in containers with exothermic materials, preventing over-pressures and potential container rupture while ensuring safe storage and transport by allowing controlled gas release.
Implementation Method 1
a gas permeable filter which is a sheet fixed between the fastening means of the neck and the flange
Implementation Method 2
the vent opening in the venting cover is provided with a pop-off cap
Data Source
Figure 1
Figure 2A~2B
AI summary
Pressure release container, e.g. for peroxide materials, with a spout opening (2), a neck (3) along the periphery of the spout opening, and a venting cover (5). The venting cover comprises a body plate (6) to cover the spout opening, the body plate having a vent opening (7) and having a flange (9) with fastening means, e.g. a screw thread (4), to cooperate with corresponding fastening means on the outer face of the neck. The vent opening is covered by a gas permeable sheet (11) fixed between the fastening means of the neck and the flange. The vent opening can be provided with a pop-off cap (8).