Pressurized Container Closure for Targeted Membrane Venting
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Solution Overview
Problem
Existing venting features in pressurized containers lack the ability to provide controlled and targeted depressurization based on pre-determined factors associated with the contents of the container.
Innovation Solution
A closure for pressurized containers featuring a plate with notches that form a membrane capable of rupturing at a maximum pressure, allowing for controlled and targeted pressure relief through a combination of notch angles, diameters, and alignment to ensure precise venting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional venting features are used in pressurized containers, then basic pressure relief is achieved, but controlled and targeted depressurization based on pre-determined factors cannot be provided
Solution Approach 1:
The closure is segmented into multiple functional zones including a first notch extending from the top side, a second notch extending from the bottom side, and a membrane positioned between them. This segmentation allows each component to perform a specific function in the pressure relief process, enabling controlled depressurization while maintaining manageable structural complexity
Solution Approach 2:
The membrane is pre-positioned between the first and second notches during closure manufacturing, with its rupture characteristics predetermined based on maximum pressure thresholds. This preliminary action ensures that when pressure reaches the threshold, the membrane ruptures in a controlled manner to provide targeted depressurization, eliminating the need for complex real-time control mechanisms
2Manufacturing precision
If a membrane is added between notches to enable controlled rupture, then precise pressure management is achieved, but device complexity increases
Solution Approach 1:
The membrane is positioned locally between the first and second notches, creating a specific zone for controlled rupture. The first notch has an inner surface and outer surface with defined geometric relationships (planes intersecting at specific angles), while the membrane provides localized pressure-sensitive functionality. This local quality approach concentrates the precision requirements in specific areas rather than throughout the entire closure structure
Solution Approach 2:
The membrane's rupture characteristics are determined by its physical parameters (thickness, material properties, dimensions) which are predetermined during manufacturing. By controlling these parameters, the closure achieves precise pressure relief control at a specific maximum pressure threshold without requiring complex active control systems
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 enables accurate and controlled depressurization of containers, enhancing safety by preventing uncontrolled release of contents and ensuring precise pressure management.
Implementation Method 1
a membrane that is capable of being ruptured when a maximum pressure causes the membrane to rupture
Data Source
AI summary
A closure 20 for a pressurized container having a plate with a top side 24 and a bottom side 28, a first notch 22 that extends about a first axis A1 along the top side, and a second notch 26 that extends about the first axis along the bottom side. The first and second notch form a membrane 62 that is capable of being ruptured when a maximum pressure causes the membrane to rupture.