Dual-Opening Dispensing Closure for Controlled Flow Rate Selection
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Solution Overview
Problem
Existing dispensing closures for liquids often suffer from leakage and uneven dispensing rates, as they typically have a single dispensing pathway and lack mechanisms to control the flow rate effectively.
Innovation Solution
A two-way dispenser closure with distinct openings of different cross-sections, featuring a cap and a pivotable top component with cylindrical tubes and channels, allowing for fluid communication at varying rates by pivoting between closed and opened positions to create different dispensing pathways.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single dispensing pathway is used, then the closure structure is simple, but the dispensing rate cannot be controlled effectively and leakage occurs
Solution Approach 1:
The closure is divided into multiple independent dispensing pathways (first and second pathways with different cross-sections), each capable of controlling flow rate independently. This segmentation allows for better leakage prevention while maintaining manageable structural complexity through modular design.
Solution Approach 2:
The closure incorporates a rotatable component that dynamically switches between different dispensing pathways based on user need. This dynamic switching mechanism allows the system to adapt between different flow rates and dispensing modes, improving reliability without requiring multiple static closure structures.
2Productivity
If a single dispensing pathway is used, then the closure structure is simple, but the dispensing rate varies and cannot be controlled
Solution Approach 1:
Different portions of the closure have different cross-sectional areas in the dispensing pathways, creating local quality variations that control dispensing rates. The first pathway has a smaller cross-section for controlled dispensing, while the second pathway has a larger cross-section for faster dispensing, allowing rate control without complex mechanical adjustments.
Solution Approach 2:
The rotatable component enables dynamic switching between dispensing pathways with different cross-sectional areas, allowing users to select appropriate dispensing rates based on immediate needs. This dynamic adaptability improves productivity control while keeping the overall structure relatively simple.
3Adaptability or versatility
If multiple dispensing pathways with different cross-sections are used, then dispensing rate control is improved, but the closure structure becomes more complex
Solution Approach 1:
The closure structure is designed to perform multiple functions through a unified mechanism: it can dispense at different rates, switch between pathways, and prevent leakage all within a single closure assembly. This multi-functionality increases adaptability while avoiding the need for multiple separate closure devices.
Solution Approach 2:
Multiple dispensing pathways and switching mechanisms are merged into a single integrated closure structure rather than using separate components. The rotatable component combines pathway selection, flow rate control, and sealing functions in one element, enhancing versatility while managing structural complexity through consolidation.
Data Source
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AI summary
A closure for a container having an opening for dispensing fluids contained therein. The closure includes a cap and a pivotable top component moveable between a closed and two opened positions. A pair of dispensing openings are in fluid communication with the associated container. A second dispensing opening and its associated channel has a larger cross section, perpendicular to a flow direction, than a first dispensing opening and its associated channel.