Tea Brewer Strainer Layout for Clear Flow and Leaf Removal
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Solution Overview
Problem
Existing automatic tea preparation methods fail to produce clear tea without bubbles and often result in tea leaves adhering to the strainer, preventing complete removal and mimicking the manual brewing process effectively.
Innovation Solution
The method involves initially filling the container with water above the strainer, adding tea leaves, and then gradually introducing more water while allowing a brewing period to prevent strainer blockage and enhance flavor extraction, with the option to use a siphon or valve system for efficient discharge and cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If water is passed through under raised pressure, then tea preparation speed is improved, but the tea becomes cloudy with bubbles
Solution Approach 1:
The patent replaces the mechanical pressurization system with a gravity-based percolation system. Water flows through the tea leaves naturally under gravity without external pressure, eliminating bubbles while maintaining adequate preparation speed through controlled flow rate and extended contact time in the percolation chamber.
Solution Approach 2:
The patent employs periodic water flow through the tea leaves in the percolation chamber, allowing water to saturate and drain repeatedly. This periodic saturation and drainage action extracts flavor effectively while preventing foam formation and maintaining tea clarity, unlike continuous pressurized flow.
2Productivity
If the container is rotated at high speed to remove tea leaves, then tea removal speed is improved, but tea leaves are not completely removed and may block the strainer
Solution Approach 1:
The patent uses high-frequency vibration of the strainer basket instead of rotation to remove tea leaves. The vibration loosens adhering tea leaves and propels them toward the discharge opening, achieving complete removal without blocking the strainer perforations, unlike high-speed rotation which can pack leaves against the strainer.
Solution Approach 2:
The patent transforms the static strainer basket into a dynamically vibrating component. The vibration frequency and amplitude are controlled to optimize tea leaf discharge while preventing blockage, providing a more reliable removal mechanism compared to fixed high-speed rotation.
3Extent of automation
If a siphon system is used for discharge, then automated beverage dispensing is improved, but the device complexity increases
Solution Approach 1:
The patent employs a siphon-based hydraulic discharge system that uses water pressure differential to automatically empty the percolation chamber into the serving cup. This passive hydraulic mechanism achieves automated dispensing without complex motors or valves, balancing automation with simplicity.
4Manufacturing precision
If water contact time with tea leaves is extended for flavor extraction, then tea flavor quality is improved, but preparation time increases
Solution Approach 1:
The patent uses periodic saturation and drainage cycles in the percolation chamber to accelerate flavor extraction. Multiple rapid cycles of water flow through the tea leaves increase the effective contact time and extraction efficiency without requiring prolonged steeping, reducing total preparation time while maintaining flavor quality.
Solution Approach 2:
The patent maintains continuous water flow and contact with tea leaves throughout the extraction process in the percolation chamber, eliminating idle periods. This continuous action maximizes flavor extraction efficiency within a shortened time frame compared to batch steeping methods.
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 approach prevents strainer blockage, allows for the production of clear tea similar to manually brewed tea, and enables complete removal of tea leaves, ensuring consistent and flavorful beverage preparation without pressurization.
Implementation Method 1
on reaching a certain level of a siphon placed behind the reservoir the tea moves into the teapot
Implementation Method 2
tea which comes into contact with the water above the strainer swells up
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
Method and device for automatic preparing of tea. A container is provided with a strainer bottom (16) and a closable discharge line downstream of said bottom. In a first step, water is fed in until the strainer bottom (16) is substantially covered with water. Tea leaves, which can absorb the water, are then added. After that, further water is added, and tea can be made. The discharge line (17,18,19) is then opened and the ready beverage is discharged, possibly with further water being fed in. The remaining tea leaves are left behind on the surface of the strainer (16). The container is then split into a container sleeve (7) and strainer bottom (16), and a brush (25) is placed between them for the purpose of removing the leaves.