Venting Liner With Rigid Outer Layer For High Torque Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing venting liners for containers face limitations in venting capacity due to small aperture sizes, are prone to deformation under high torque and compressive forces, and are costly, leading to inefficiencies and potential failure.
Innovation Solution
A venting liner comprising a liquid-impermeable and gas-permeable outer layer, a compressible inner layer, and a rigid outer layer with vertically oriented fluid flow paths, which allows for efficient gas venting while preventing liquid flow and maintaining structural integrity under closure forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a compressible venting liner is used to seal between closure and container, then sealing is achieved, but the liner compresses under high torque reducing venting capacity
Solution Approach 1:
The venting liner is divided into two distinct layers: an outer liquid-impermeable layer and an inner gas-permeable layer. This segmentation allows each layer to perform its specific function independently, preventing liquid leakage while maintaining gas venting capability even under compression.
Solution Approach 2:
The outer layer is designed with liquid-impermeable properties, while the inner layer is designed with gas-permeable properties. This local differentiation of material properties allows the liner to simultaneously achieve liquid sealing and gas venting functions without compromise.
2Productivity
If prior art venting liners are used, then venting is provided, but they deform under high torque and compressive forces
Solution Approach 1:
The venting liner uses a composite structure combining an outer liquid-impermeable layer with an inner gas-permeable layer. This composite design provides both sealing capability and structural stability under load, preventing deformation while maintaining venting function.
3Reliability
If small aperture sizes are used in venting liners, then liquid impermeability is achieved, but venting capacity is limited
Solution Approach 1:
The liner is segmented into two layers with different aperture characteristics: the outer layer has small apertures for liquid impermeability, while the inner layer has larger apertures for gas permeability. This allows both requirements to be satisfied simultaneously.
Solution Approach 2:
Different regions of the liner have different aperture properties tailored to their specific functions. The outer layer uses small apertures for liquid sealing, while the inner layer uses larger apertures for efficient gas venting, optimizing both functions locally.
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 enhances venting capacity, prevents deformation, and reduces costs by using a rigid outer layer that maintains open fluid flow apertures and allows for adjustable venting capacity through aperture design, ensuring reliable performance under high-torque applications.
Implementation Method 1
a first substantially liquid impermeable and gas permeable outer layer in fluid communication with the interior of the device for allowing the flow of gas but preventing the flow of liquid therethrough
Implementation Method 2
a compressible inner layer that is compressible in response to the application of a closure force applied by the closure thereto
Implementation Method 3
A second outer layer of the venting liner defines a plurality of fluid flow paths therethrough, and is substantially incompressible in response to the application of a closure force applied by the closure thereto
Data Source
AI summary
A venting liner is connectable in fluid communication between a closure and an interior of a device for venting gas from the interior into the ambient atmosphere. The venting liner has a first fluid impervious and gas permeable outer layer, a second relatively rigid and substantially incompressible outer layer defining an open cell structure, and an inner foam layer defining an inner surface and an outer surface, a plurality of fluid-flow apertures spaced relative to each other, extending between the inner and outer surfaces, and forming substantially vertical fluid-flow paths through the inner layer. The first outer layer is in fluid communication with the interior of the device for venting gas through the interior of the first outer layer, substantially vertically through the apertures and, in turn, through the interior open cell structure of the second outer layer and into the ambient atmosphere.