Coffee Particle Filtration Using Airflow Weight Separation
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Solution Overview
Problem
Existing coffee brewing methods suffer from inconsistent extraction due to non-uniform particle sizes and distributions, leading to dissonant brewing outcomes characterized by bitterness, dullness, and wateriness, which cannot be corrected by compensatory adjustments in brew variables.
Innovation Solution
A particle filtration system utilizing a combination of gravitational, mechanical, and electromagnetic forces to sort and filter ground coffee particles, employing variable velocity air flows and filtration mechanisms to achieve uniform particle distribution, ensuring optimal extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If coffee particles are ground using conventional grinders, then coffee preparation is simplified, but particle size uniformity deteriorates leading to dissonant extraction
Solution Approach 1:
The patent applies preliminary action by filtering coffee particles immediately after grinding, before brewing begins. The filtration system removes non-conformant particles (fines and husks) right after grinding, preventing them from affecting extraction. This preliminary removal ensures that only uniformly sized particles proceed to brewing, resolving the contradiction between ease of preparation and particle uniformity.
2Productivity
If fine particles are present in coffee grounds, then grinding efficiency is improved, but extraction quality deteriorates due to rapid over-extraction and filter clogging
Solution Approach 1:
The patent applies the taking out principle by extracting and removing fine particles and husks from the coffee grounds through filtration. The system specifically targets and removes non-conformant particles that would otherwise cause over-extraction and filter clogging. This selective removal maintains grinding efficiency while ensuring extraction quality consistency by eliminating problematic fine particles.
3Quantity of substance
If husk is included in coffee particles, then grinding yield is increased, but brew quality deteriorates due to distorted mass to water ratio
Solution Approach 1:
The patent applies local quality by differentiating between conformant coffee particles and non-conformant husk particles. The filtration system selectively removes husk particles while retaining proper coffee particles, ensuring that only particles with the correct properties (appropriate mass, size, and composition) remain in the brew. This selective filtering maintains the correct mass to water ratio and ensures consistent brew quality.
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 system ensures uniform particle distribution, resulting in improved flavor and aroma consistency by optimizing the extraction process, thereby enhancing the quality of brewed coffee.
Implementation Method 1
A particle filtration system utilizes a combination of gravitational, mechanical, and electromagnetic forces to sort and filter ground coffee particles
Implementation Method 2
By increasing or decreasing the velocity of the air flow, it should be possible to increase or decrease (respectively) the weight of the particles that are filtered out of the grinds
Implementation Method 3
A vibration motor may be attached to the discharge plate to agitate the particles
Implementation Method 4
A particle filtration system utilizing a combination of gravitational, mechanical, and electromagnetic forces to sort and filter ground coffee particles, employing variable velocity air flows
Data Source
AI summary
An air-based particle filtration system (10) having at least one fan (26) to filter particles (especially coffee grinds) based on weight. The particle filtration system (10) includes a chamber (44) and a hopper (12) for dispersing particles to be sorted into the chamber. The particle filtration system (10) has a controller driving the one or more fans (26) and a collector (36) for conforming particles and optionally a discard collector (38) for non-conforming particles.