French Press Brew Chamber Motion to Prevent Coffee Ground Channeling
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Solution Overview
Problem
The French press coffee brewing method is labor-intensive and requires manual effort, leading to channeling of coffee grounds, which results in uneven extraction and the need for frequent cleaning, making it inefficient for producing multiple cups.
Innovation Solution
An automated French press coffee machine with a brew chamber that can move between positions to receive, saturate, and separate coffee grounds, utilizing a motor to pulsate water distribution and a piston to separate brewed coffee, while an arm sweeps away grounds, minimizing channeling and automating the cleaning process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual French press brewing is used, then full-bodied flavor and uniform extraction can be achieved, but the process becomes labor-intensive and time-consuming
Solution Approach 1:
The system performs brewing operations automatically without requiring manual intervention for each step. The brew chamber autonomously executes the brewing cycle, eliminating the need for users to manually stir, plunge, and clean, while maintaining consistent extraction quality through programmed control sequences.
Solution Approach 2:
The patent replaces manual mechanical operations with an automated motor-driven system. The motor controls the plunging motion and piston operation, substituting human mechanical effort with an automated mechanical system that delivers consistent, repeatable brewing actions.
2Productivity
If multiple cups of coffee are brewed using manual French press, then quantity increases, but cleaning frequency and complexity increase
Solution Approach 1:
The system automatically discards used coffee grounds through the ejection mechanism that propels grounds into the waste chamber. This automated disposal eliminates the manual cleaning step required after each brewing cycle, allowing users to brew multiple cups without repeated cleaning interruptions.
Solution Approach 2:
The brew chamber design incorporates preliminary positioning features that facilitate easy grounds ejection and chamber clearing. The geometry of the chamber and ejection mechanism are pre-configured to enable rapid grounds removal, preparing the system for the next brewing cycle with minimal user intervention.
3Device complexity
If traditional French press method is used, then simple device structure is maintained, but channeling of coffee grounds occurs leading to uneven extraction
Solution Approach 1:
The system incorporates vibration during the brewing process to prevent coffee grounds from settling into channels. The vibrational motion keeps the grounds suspended and evenly distributed, ensuring uniform water flow and extraction throughout the coffee bed, thereby eliminating channeling effects.
Solution Approach 2:
The patent introduces dynamic elements to the brewing process, including movable components and varying motion patterns during brewing. The system transitions between different phases (steeping, plunging, agitation) with varying speeds and forces, creating dynamic conditions that prevent static channel formation and promote uniform extraction.
Data Source
AI summary
A French press coffee machine for brewing coffee from coffee grounds is provided. The coffee machine can include a brew chamber, a piston, and a motor. The brew chamber can be selectively moveable between a first position, a second position, and a third position. The brew chamber in the first position can be configured to receive coffee grounds. The brew chamber in the second position can be configured to brew coffee. The brew chamber in the third position configured to compress the coffee grounds. The piston can be selectively moveable between a first point and a second point to separate the coffee grounds from the brewed coffee. The motor can be disposed adjacent to the brew chamber and can be configured to selectively move the brew chamber and the piston. The present disclosure also provides a method for brewing coffee from coffee grounds.