Flexible-Valve Dispensing Cap for Aseptic Liquid Handling
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Solution Overview
Problem
Existing liquid dispensing systems in machines like coffee or smoothie machines often lead to unhygienic conditions due to frequent topping up of liquids with short shelf life, such as milk, resulting in bacterial buildup.
Innovation Solution
A dispensing system with a cap and connecting member that includes a flexible valve and a retaining ring, allowing secure attachment and automatic closure to prevent contamination, featuring a duckbill valve and a snap-fit mechanism for easy connection and disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a flexible valve is used to automatically close when detached, then contamination is prevented and aseptic conditions are maintained, but the device complexity increases due to additional components
Solution Approach 1:
The flexible valve is designed to automatically close and seal the bore when the connecting member is detached, without requiring manual intervention or additional actuating mechanisms. The valve's flexibility allows it to passively respond to the presence or absence of the connecting member, thereby preventing contamination automatically while avoiding the complexity of motorized or mechanically actuated closure systems.
2Ease of operation
If a snap-fit mechanism with retaining ring is used to secure components, then ease of operation is improved for connection and disconnection, but reliability may be reduced due to potential accidental detachment
Solution Approach 1:
The connecting member is designed with separate functional segments: a rigid body for structural support and connection, and a flexible valve component for sealing. This segmentation allows the rigid parts to provide stable mechanical engagement through the snap-fit mechanism, while the flexible valve independently provides reliable sealing, thus maintaining both ease of operation and connection stability.
3Object-affected harmful factors
If the valve is positioned to automatically close when detached, then hygiene is improved by preventing bacterial buildup, but the manufacturing precision requirements increase to ensure proper sealing
Solution Approach 1:
The valve is made from elastomeric material that exhibits elastic deformation properties. This material parameter change allows the valve to flexibly adapt to slight variations in manufacturing tolerances while maintaining an effective seal. The elasticity of the material compensates for minor dimensional deviations, ensuring reliable contamination prevention without requiring extremely tight manufacturing precision.
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 aseptic conditions by automatically closing the valve when detached, facilitating easy cleaning and reducing bacterial growth, while maintaining a secure seal during use.
Implementation Method 1
a flexible valve positioned in the cap to be in contact with liquid contents of the liquid container... The opening in the valve may automatically close when the connecting member is detached from the cap
Implementation Method 2
The connecting member may include a seal and the cap may include an inwardly extending flange, wherein when the connecting member is secured to the cap, the seal engages the flange to create a seal therebetween
Implementation Method 3
when the connecting member is secured to the cap, the projecting member sealingly engages the bore and urges an opening in the valve to permit liquid in the container to pass into the inlet of the connecting member and subsequently out through the outlet
Data Source
AI summary
A dispensing system for a liquid container including a cap configured to be mounted to a spout connected to a liquid container. The system includes a flexible valve positioned in the cap to be in contact with the liquid contents of the liquid container and a retaining ring connected to the cap to secure the flexible valve to the cap. The cap includes at least one channel defined by a projection configured to receive the tab of a connecting member and secure the connecting member to the cap by securing the tab in the channel under the projection.