Disrupted Container Closures for Consistent Gas Venting
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Solution Overview
Problem
Existing closures fail to consistently permit gas transfer from vented liners due to tight sealing, which is inconsistent with perfect torque and heat conditions, leading to pressure imbalances in containers.
Innovation Solution
Closures with a sealing member featuring permanent disruptions in the sealing portion to create consistent gas pathways, allowing gas exchange even under compression and heat sealing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the closure is tightened to seal the container securely, then the sealing effectiveness is improved, but gas transfer from the vented liner is blocked
Solution Approach 1:
The sealing member is segmented with disruptions (gaps, slots, or broken portions) in its sealing portion, dividing the continuous seal into discrete segments that allow gas pathways while maintaining overall sealing effectiveness against liquids and particulates
Solution Approach 2:
Different regions of the sealing member have different properties: the sealing portion provides tight sealing in most areas, while the disruptions create localized gas-permeable regions that allow gas exchange without compromising overall seal integrity
2Manufacturing precision
If perfect torque and heat conditions are applied during sealing, then the seal is formed effectively, but gas transfer pathways close due to excessive compression
Solution Approach 1:
The disruptions in the sealing member are pre-formed during manufacturing, creating permanent gas pathways before the sealing process. This preliminary structuring ensures that even under compression from torque and heat application, the gas pathways remain open because they are defined by the physical geometry of the disruptions rather than relying on material flexibility during sealing
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
Ensures consistent gas transfer through the sealing member, preventing pressure imbalances in containers by maintaining open pathways despite torquing and heating.
Implementation Method 1
The filter vent permits gases to diffuse in and out of the interior of the container, via the vent aperture
Implementation Method 2
Upon exposing the seal to heat, the lower layer bonded to the container's rim
Implementation Method 3
These prior seals commonly had a lower heat activated sealing layer... In many cases, these seals included a foil layer capable of forming induction heat to activate the lower heat seal layer
Data Source
AI summary
Disrupted closures are described herein which can provide for consistent flow paths for gas transfer from a container. The closures include a sealing member extending on the inside of the closure to contact a vented liner and/or the rim of a container. The sealing member includes a sealing portion and one or more disruptions in the sealing portion to provide gas pathways to the ambient atmosphere.


