Beverage extractor

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Solution Overview

Problem

Conventional beverage extraction devices lack mechanisms for actively controlling temperature during the extraction process, leading to unstable temperature conditions that affect the elution of components, resulting in compromised extraction results and significant hidden costs.

Innovation Solution

A beverage extraction device with a temperature adjustment chamber adjacent to the extraction chamber, using a temperature control medium to maintain or adjust the temperature during the extraction process, allowing for precise control of the elution phenomenon.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If conventional extraction devices are used without temperature control, then the device complexity is low, but the temperature stability during extraction deteriorates

Engineering Contradiction:
Improvetemperature stabilityVSAvoiddevice complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent implements a nested structure where an inner extraction chamber is placed inside an outer temperature control chamber. The extraction chamber containing the beverage material is nested within the temperature control chamber that circulates temperature control medium, creating a concentric dual-chamber configuration that provides temperature stability while maintaining relatively simple device structure.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The device is segmented into two functional chambers: the inner extraction chamber for holding beverage material and the outer temperature control chamber for circulating temperature control medium. This segmentation separates the extraction function from the temperature control function, allowing independent optimization of each while maintaining overall system simplicity.

Inventive Principle:
Principle #1Segmentation

2Temperature

If preheating is performed by hot water rinsing or water bath heating, then the temperature of hot water can be maintained, but the water consumption and energy loss increase significantly

Engineering Contradiction:
Improvehot water temperature maintenanceVSAvoidwater and energy waste
Core Design Contradiction:
TemperatureVSLoss of energy

Solution Approach 1:

The patent performs preliminary temperature control by circulating temperature control medium through the outer chamber before and during the extraction process. This preliminary heating or cooling action maintains the optimal temperature in the extraction chamber from the start, eliminating the need for repeated hot water rinsing or water bath heating that waste water and energy.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The temperature control system operates autonomously by circulating temperature control medium through the outer chamber, self-regulating the temperature of the inner extraction chamber without requiring external intervention such as manual preheating or continuous hot water addition. The system serves itself by maintaining temperature stability through continuous medium circulation.

Inventive Principle:
Principle #25Self-service

3Use of energy by moving object

If the extraction chamber is made of materials with high thermal conductivity, then heat transfer is efficient, but heat loss to the surroundings increases

Engineering Contradiction:
Improveheat transfer efficiencyVSAvoidheat loss to surroundings
Core Design Contradiction:
Use of energy by moving objectVSLoss of energy

Solution Approach 1:

The patent introduces temperature control medium as an intermediary substance that circulates in the outer chamber, acting as a thermal mediator between the heat source and the extraction chamber. This intermediary layer provides controlled heat transfer while insulating the extraction chamber from direct heat loss to the external environment, optimizing both heat transfer efficiency and thermal insulation.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables stable and optimal temperature conditions for component extraction, reducing hidden costs and allowing users to consistently achieve desired taste, aroma, and nutritional content without advanced skills or knowledge.

Implementation Method 1

a temperature control medium is introduced into the temperature adjustment chamber for adjusting the temperature during the extraction process in the extraction chamber

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

the hot water poured inside them is deprived of heat by these utensils, the extraction materials such as coffee grounds or tea leaves, and the ambient atmospheric temperature

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentEP4684700A1Beverage extractor
Publication Date: 2026.01.28 SUEHIRO MINEJI
  • EP4684700A1 patent drawingFigure 1(a)~1(c)
  • EP4684700A1 patent drawingFigure 2(a)~2(c)
  • EP4684700A1 patent drawingFigure 3(a)~3(c)

AI summary

[Problem] To provide an extractor or dripper capable of maintaining or adjusting the temperature necessary for ideal component extraction during the extraction process of coffee or similar beverages. [Solution] The beverage extraction device 1 comprises an extraction chamber 2, in which the components of the extraction material are extracted by passing a liquid therethrough, and a temperature adjustment chamber 3. The temperature adjustment chamber 3 is provided outside the extraction chamber 2, with an inner side wall 20 or an inner bottom wall 23 serving as the partition. In order to adjust the temperature during the extraction process in the extraction chamber 2, a temperature-controlled temperature control medium is introduced into the temperature adjustment chamber 3 through an inlet 7. As a result, the extraction temperature of the liquid during the extraction process can be maintained or adjusted.