Capsule Beverage Machine with Gravity-Aligned Vertical Extraction

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Solution Overview

Problem

Existing beverage extraction machines using capsules face inefficiencies due to non-coinciding seating and extraction directions, difficulty in varying operations, complex capsule handling, and issues with beverage residue flow and discharge.

Innovation Solution

The beverage machine aligns the capsule seating and extraction directions with gravity, incorporates a cap member that presses and perforates capsules vertically, includes a receiving groove for stable capsule positioning, and features a flow path with check valves to prevent backflow and residue accumulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the capsule is placed horizontally for extraction, then the capsule can be pressed from the side to inject water, but the discharge direction becomes perpendicular to the pressing direction which reduces extraction efficiency

Engineering Contradiction:
Improvecapsule pressing operationVSAvoidextraction efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent inverts the traditional horizontal capsule placement to vertical placement. The capsule is positioned upright in the extraction chamber, with the pressing mechanism applying force from the top downward along the same vertical axis. This inversion aligns the pressing direction and beverage discharge direction, eliminating the perpendicular orientation problem and improving extraction efficiency.

Inventive Principle:
Principle #13The other way round (Inversion)

2Productivity

If the capsule is placed vertically to improve extraction efficiency, then the pressing and discharge directions align, but the capsule becomes difficult to separate during the return operation of the pressurizing structure

Engineering Contradiction:
Improveextraction efficiencyVSAvoidcapsule separation operation
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent segments the capsule structure into distinct functional zones: an upper portion that remains engaged with the pressing mechanism during extraction, and a lower portion that is designed to separate easily. The capsule includes a breakable seal or separation line that allows the upper sealed portion to stay in place while the lower portion detaches, facilitating easy removal after extraction.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary component or mechanism between the capsule and the pressing structure that facilitates separation. This could be a release mechanism, a separable connector, or a designed friction interface that allows the capsule to be firmly held during extraction but easily released during the return operation, solving the separation difficulty without compromising extraction efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Object-affected harmful factors

If a valve is added to the discharge flow path to prevent remaining beverage from flowing to the floor, then beverage spillage is prevented, but beverage remains in the discharge flow path causing it to flow to the beverage cup during the next extraction

Engineering Contradiction:
Improvebeverage spillage to floorVSAvoidbeverage residue in discharge path
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The patent extracts or removes the valve component from the discharge flow path entirely. Instead of using a valve to control beverage flow, the design employs gravity-assisted drainage, capillary action channels, or a self-draining structure that allows remaining beverage to be completely evacuated from the discharge path after each extraction, preventing both floor spillage and residue accumulation in the flow path.

Inventive Principle:
Principle #2Taking out (Extraction)

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 design enhances extraction efficiency, ensures accurate capsule seating, prevents residue spillage, and allows for easy cleaning and versatile cup usage.

Implementation Method 1

a seating direction of a capsule and a direction in which the beverage is extracted are formed to coincide with the direction of gravity

Methodology Applied
Scientific EffectGravity: Gravitation

Implementation Method 2

a flow path with check valves to prevent backflow and residue accumulation

Methodology Applied
Scientific EffectCheck valve mechanism: Valve

Data Source

PatentEP4714311A1Beverage device
Publication Date: 2026.03.25 LG ELECTRONICS INC
  • EP4714311A1 patent drawingFigure 1~2
  • EP4714311A1 patent drawingFigure 3~4
  • EP4714311A1 patent drawingFigure 5~6

AI summary

A beverage machine using capsules of the present disclosure may be formed so that a seating direction of the capsule and a direction in which the beverage is extracted may be formed to coincide with the direction of gravity, and a direction of pressurizing and perforating the capsule is toward the direction of gravity, thereby improving extraction efficiency.