Mono-dose Liquid Container Anti-crushing Protrusions
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Solution Overview
Problem
Existing mono-dose liquid containers face issues with plastic deformation during fluid dispensing, limiting control and complete expulsion of the fluid, especially when they lack a vent and are subjected to excessive compression.
Innovation Solution
The container features internal protrusions that engage to limit relative movement and deformation, allowing for controlled fluid expulsion through compressive force while preventing excessive plastic deformation, enabling complete fluid emptying through a pumping action.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual compression is used to dispense fluid from the container, then fluid expulsion is achieved, but plastic deformation occurs limiting further control and prevention of fluid expulsion
Solution Approach 1:
The container incorporates a vent mechanism that预先 (in advance) counteracts the harmful effect of excessive compression by allowing air to enter the container during fluid expulsion. This preliminary anti-action prevents the pressure differential that would otherwise cause plastic deformation and loss of container structural integrity, enabling repeated compression cycles without permanent deformation.
2Quantity of substance
If excessive compression is applied to the container, then complete fluid expulsion is achieved, but plastic deformation occurs limiting further control
Solution Approach 1:
The vent mechanism provides preliminary anti-action by preventing the pressure buildup that leads to plastic deformation. This allows users to apply compression force without exceeding the elastic limit of the container material, maintaining control over fluid dispensing while still achieving complete expulsion through repeated controlled compression cycles.
Solution Approach 2:
The container is designed to be compressed and released in periodic cycles. The vent allows air to enter during compression to prevent deformation, and the elastic material allows the container to return to its original shape during release. This periodic action enables complete fluid expulsion through multiple controlled cycles rather than requiring excessive single-force compression.
3Device complexity
If the container lacks a vent, then structural simplicity is maintained, but plastic deformation occurs during compression
Solution Approach 1:
The vent mechanism, while adding a small amount of structural complexity, provides crucial preliminary anti-action by allowing air to enter the container during compression. This simple opening prevents the pressure differential that causes plastic deformation, significantly improving reliability without substantially increasing device complexity.
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
This design ensures efficient and complete fluid dispensing without plastic deformation, allowing precise control over the amount of fluid released and ensuring the container remains cost-effective and easy to use.
Implementation Method 1
Excessive compression of the container, however, can result in its plastic deformation... The first and second protrusions define complementary surfaces sized to engage one another and limiting relative movement between the first and second protrusions
Data Source
AI summary
A mono-dose container comprises a housing defining an internal cavity. The housing includes a first sidewall defining a first interior surface of the internal cavity, and a second sidewall defining a second interior surface of the internal cavity at least partially opposing the first interior surface. A first protrusion extends from the first sidewall into the internal cavity. A second protrusion extends from the second sidewall into the internal cavity and in a direction of the first protrusion. The first and second protrusions define complementary surfaces sized to engage one another and limit relative movement between the first and second protrusions in at least two directions.