Training Cup with Suction-Activated Flexible Valve to Reduce Spills
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Solution Overview
Problem
Existing child cups fail to effectively transition children from using bottles with nipples or sippy cups to open-rim cups while minimizing spills and leaks, and often have complex assembly or cleaning issues.
Innovation Solution
A training cup assembly with a flexible valve that responds to suction force, allowing fluid to flow through openings in a baffle, and a simplified design with a two-component lid and cup configuration that provides easy assembly and cleaning, featuring a press-fit, snap-fit, or threaded connection for secure sealing and easy handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible valve with suction response is used to help children transition from bottles to open-rim cups, then the child development benefit is improved, but the device complexity increases
Solution Approach 1:
The patent employs a flexible valve made from elastomeric material that responds to suction forces applied by the child. This flexible membrane mechanism allows the valve to open when the child sucks and close when suction stops, providing an intuitive transition tool from bottle to open-cup drinking without complex mechanical components
Solution Approach 2:
The flexible valve is designed to automatically respond to the child's suction actions without requiring external control mechanisms. The valve opens and closes based solely on the suction force applied by the child, making the system self-regulating and eliminating the need for additional control components
2Ease of operation
If a simplified two-component lid and cup configuration is used, then ease of assembly and cleaning is improved, but sealing reliability may worsen
Solution Approach 1:
The patent combines the valve, baffle, and lid into a single integrated component that attaches to the cup. This merging of functions into one piece eliminates multiple small parts that would be difficult to clean and assemble, while maintaining effective sealing through the integrated design
Solution Approach 2:
The flexible valve material creates effective seals through its elastic properties, allowing it to conform to the cup opening and maintain reliability without requiring complex mechanical sealing components that would increase assembly complexity
3Reliability
If the flexible valve is biased to closed state with suction activation, then spill mitigation is improved, but the force required to activate may worsen
Solution Approach 1:
The spring mechanism provides a biasing force that counteracts the suction force applied by the child. This spring-loaded system ensures the valve remains closed under normal conditions and only opens when sufficient suction overcomes the spring force, preventing spills while allowing controlled activation
Solution Approach 2:
The spring constant and valve geometry are designed to optimize the force balance, ensuring the valve responds appropriately to typical child suction forces while maintaining reliable closed-state sealing to prevent spills during transport and storage
4Ease of operation
If openings are provided in the baffle for fluid flow, then drinking functionality is improved, but spill risk when tipped may worsen
Solution Approach 1:
The baffle openings are designed to be dynamically controlled by the flexible valve. During normal drinking, the valve opens to allow fluid flow through the openings. When the cup is tipped or inverted, the flexible valve automatically closes under the influence of gravity and pressure differential, blocking the openings and preventing spills
Solution Approach 2:
The system provides automatic feedback through pressure differential detection. When the cup is upright and being drunk from, negative pressure opens the valve. When tipped over, positive pressure closes the valve, creating an automatic spill-prevention response based on cup orientation
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 cup assembly effectively helps children learn to drink from an open-rim cup by transitioning their suction force application and reduces spills and leaks, while also simplifying assembly and cleaning with a user-friendly design.
Implementation Method 1
the training cup responds to suction force (and/or by deflecting the flexible valve with the child's lip/mouth) exerted by the child's mouth against the flexible valve
Implementation Method 2
The flexible valve is biased to be in a closed state, such that, upon release of the force exerted by the child, the flexible valve creates a seal and mitigates against spills
Data Source
AI summary
A container assembly includes a container (or cup) and a lid, and functions as a training cup assembly. The lid activates by a force applied by the user of the cup in order to withdraw fluid from inside the cup volume. The training cup feature permits removal of the contents from the cup while mitigating against leaks and/or spills.