Bottom-Dispensing Container with One-Way Vent for Shape Recovery
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Solution Overview
Problem
Existing bottom-dispensing containers struggle to reflate to their original shape after being squeezed, especially when made from more flexible materials, leading to inconvenience and reduced durability.
Innovation Solution
A bottom-dispensing package with a resiliently squeezable container featuring a one-way vent on the top, allowing air ingress while preventing air egress, which enables the container to reflate effectively even when made from flexible materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the container is made from flexible materials to improve durability and reduce stress-cracking, then the container becomes more durable and less prone to stress-cracking, but the container lacks the ability to reflate to its original shape after being squeezed
Solution Approach 1:
A one-way air inlet valve is introduced as an intermediary component to mediate the air refilling process. The valve allows air to enter the container during the reflation phase but prevents air from escaping during dispensing, enabling flexible containers to maintain their shape without requiring stiff materials
Solution Approach 2:
The traditional approach of using stiff materials to force air back through the dispensing orifice is inverted. Instead, a dedicated one-way air inlet valve provides an alternative pathway for air to enter the container, reversing the direction of air flow control from outlet-based to inlet-based
2Ease of operation
If the container is made from stiff materials to provide elastic spring-back for forcing air back through the dispensing orifice, then the container can rebound to its original shape, but the containers are more prone to stress-cracking
Solution Approach 1:
The one-way air inlet valve acts as a mediator that enables air refilling without requiring the container to forcefully push air through the dispensing orifice. This eliminates the need for high spring-back forces and reduces stress on the container walls
Solution Approach 2:
The mechanical spring-back system is replaced with a valve-based air refilling system. Instead of relying on elastic deformation to force air through the orifice, the one-way valve passively allows air to enter the container, reducing mechanical stress
3Reliability
If the container is made more flexible to improve durability, then the container is less prone to stress-cracking, but the container does not revert back to its original shape after dispensing
Solution Approach 1:
The one-way air inlet valve serves as an intermediary that facilitates shape recovery by enabling air to enter the container and restore its original volume, allowing flexible materials to maintain their shape without compromising durability
Solution Approach 2:
The internal pressure parameter is controlled through the one-way valve mechanism. Air enters the container to increase internal pressure and restore shape, then the valve closes to maintain the restored shape, dynamically adjusting pressure without requiring stiff materials
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 allows for improved convenience, reliability, and durability in liquid dispensing applications by enabling the container to easily return to its original shape after use, while maintaining leak resistance and ease of refilling.
Implementation Method 1
the container (10) comprises a one-way vent (70), wherein the one-way vent (70) allows the ingress of air into the container (10) while preventing the egress of air from the container (10)
Implementation Method 2
a resiliently squeezable container (10) for housing the liquid composition, the resiliently squeezable container comprising a container wall (11)
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The need for a bottom dispensing packaging that can more easily reflate to its original shape, even when used with containers which are more flexible, is met when the container is provided with a one-way vent which allows the ingress of air into the container while preventing the egress of air from the container.