Apparatus and method for an improved coffee maker
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Solution Overview
Problem
Existing coffee machines lack efficient steam output control, making them difficult to use and potentially leading to user errors during water refilling, which can result in overfilling and ingress issues.
Innovation Solution
Incorporating a diversion channel within the water tank that directs overflow water into a drip tray, along with a locking assembly to secure the water tank and improve accessibility for refilling, and using a continuously variable output ball valve for steam control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a water tank with maximum fill height is used, then water overflow control is improved, but user ease of operation during refilling deteriorates
Solution Approach 1:
The diversion channel is pre-configured within the water tank at a specific maximum fill height. When refilling, the user simply pours water into the tank without needing to monitor the level or control the flow - the diversion channel automatically directs overflow water to the drip tray once the maximum height is reached, eliminating the need for user intervention in level control.
Solution Approach 2:
The water tank's diversion channel system serves itself by automatically managing overflow water. The channel is integrally formed with the tank body, creating a self-contained overflow management system that requires no external control mechanisms or user actions, thereby maintaining reliability while simplifying user operation.
2Measurement precision
If a needle valve is used for steam output control, then steam flow precision is improved, but ease of operation deteriorates
Solution Approach 1:
The invention replaces the static, fine-adjustment needle valve with a dynamic ball valve mechanism that allows users to quickly adjust steam output from fully closed to fully open positions. This dynamic valve provides sufficient control precision for steam dispensing while dramatically improving ease of operation through a simple rotational motion rather than requiring delicate needle adjustments.
Solution Approach 2:
The ball valve changes the operational parameter from fine, incremental adjustments (needle valve) to coarse, binary-like control (open/closed positions). This parameter change maintains adequate steam flow control for practical purposes while significantly reducing the complexity and difficulty of operation, allowing users to rapidly respond to changing steam needs.
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
Enhances user experience by preventing water ingress during refilling, ensuring secure engagement of the water tank, and providing precise steam output control, reducing the risk of user errors and improving operational efficiency.
Implementation Method 1
a diversion channel that directs overflow water into a drip tray
Data Source
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AI summary
A coffee making device has a body with a drip tray and a removeable water tank that supplies water to a heat system of the device. The water tank is internal to the device and removeable by a user. The body has a fluid refill opening that leads to the tank. The tank includes a overflow channel or conduit that dispenses into the drip tray.