Capless Refillable Bottle With Automatic Valves for Leak-Free Dispensing
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Solution Overview
Problem
The personal care and cosmetics industry has been slow to adopt environmentally friendly packaging due to its packaging-driven commercial success, leading to significant waste and increased costs, necessitating a solution for reusable and refillable containers that eliminate the need for disposable packaging.
Innovation Solution
A refillable bottle equipped with automatic flow control valves, including an automatic filling valve, pressure vent valve, manual/automatic dispensing valve, and automatic vacuum vent valve, which operate without human intervention, allowing for seamless filling, handling, and refilling of viscous materials like laundry detergent, eliminating the need for caps and associated issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If disposable packaging is used for personal care products, then commercial success is achieved through packaging appeal, but significant waste is generated and costs increase for repeated purchasing
Solution Approach 1:
The patent implements a refillable container system where the container is retained and refilled multiple times, while only the product contents are discarded. This allows the packaging to be recovered and reused, eliminating the need to discard entire packaged units after single use. The container includes features like flow control valves and pressure equalization mechanisms that enable repeated refilling cycles.
Solution Approach 2:
The refillable container is designed to serve multiple functions: it stores the product, controls flow during dispensing, manages pressure during refilling, and prevents leakage. The same container can be used for different product refills over time, making it a universal solution for multiple packaging needs rather than a single-use item.
2Loss of substance
If refillable containers are implemented, then packaging waste is reduced and costs are saved, but the complexity of flow control and refilling mechanisms increases
Solution Approach 1:
The container incorporates automatic flow control valves that open and close based on pressure differential without external control. When the container is refilled, the filling valve automatically opens as liquid enters and closes when filling is complete. Similarly, the dispensing valve automatically controls product flow based on user activation and pressure conditions, eliminating the need for complex electronic controls or manual valve operation.
Solution Approach 2:
The system uses pressure differential and fluid dynamics to control valve operation. The pressure equalization valve and flow control valves rely on pressure differences between the container interior and exterior to automatically regulate filling and dispensing. This pneumatic approach simplifies the mechanism compared to electronic or mechanical control systems.
3Extent of automation
If automatic flow control valves are used, then seamless filling and refilling is achieved without human intervention, but the device complexity increases
Solution Approach 1:
The automatic filling valve operates autonomously by sensing pressure differential between the refilling source and container interior. When refilling begins, the pressure difference automatically opens the valve; when filling completes and pressures equalize, the valve automatically closes. This self-regulating mechanism achieves automation without requiring sensors, actuators, or control systems.
Solution Approach 2:
The patent extracts the automation function from complex control systems and implements it through simple pressure-sensitive valve mechanisms. By removing electronic controls and relying on fundamental pressure differential principles, the system achieves automatic operation with minimal complexity. The valve system stands alone as a self-regulating component rather than part of a larger controlled system.
4Reliability
If caps are eliminated from refillable bottles, then leakage and misplacement issues are reduced, but flow control during handling becomes more challenging
Solution Approach 1:
The patent removes the cap component entirely and extracts its sealing and flow control functions into integrated valve mechanisms within the bottle. The flow control valve and sealing elements are built into the bottle structure, eliminating the separate cap assembly that can be lost or malfunction. This integration reduces part count and improves reliability.
Solution Approach 2:
The sealing function and flow control function are merged into a single integrated valve system. Rather than having a cap that seals the opening and separate valves for flow control, the design combines these functions into unified valve assemblies that both seal and regulate flow. This merging reduces potential failure points and simplifies the overall system.
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 enables the refillable bottle to be used innumerable times without leakage or misplacement issues, reducing waste and costs, while allowing for customization and efficient product refilling, with RFID tags for tracking and recall management, thus promoting environmental sustainability and cost savings.
Implementation Method 1
The automatic filling valve is operated and closed by the net forces between its outlet and its inlet. These net forces are based on the forces applied from the net differential pressure between the valve inlet and the valve outlet
Implementation Method 2
The automatic pressure vent valve enables air to be transferred through it and vented out of the refill bottle as it is displaced by the entering material
Implementation Method 3
The automatic vacuum vent valve enables air to be transferred through it and vented into the refill bottle, with this volume of air replacing the volume of the liquid dispensed out of the bottle
Data Source
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Figure 3~4
AI summary
A refill bottle, such as a laundry refill bottle, is disclosed that can be used with a consumer refill station to reuse the bottle over and over. The refill bottle includes automatic flow control valves, that allow the bottle to be filled, handled, dispensed from, and refilled innumerable times without a cap. The elimination of a cap alleviates the manufacturer and consumer of the tasks of installing, loosening, tightening, removing, and reinstalling or replacing the cap. The refillable bottle uses flow control valves, specifically an automatic filling valve, an automatic pressure vent valve, a manual/automatic dispensing valve, and an automatic vacuum vent valve. The refill bottle enables liquid and air to be exchanged during filling, handling, dispensing, and refilling.