Integrated Coffee Filter Container for Faster Brewing Cleanup

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Solution Overview

Problem

Traditional coffee filters require time-consuming and troublesome steps such as removing the filter cup, disposing of filter paper, and cleaning the cup, which reduces brewing efficiency.

Innovation Solution

A filter container with a main part for holding coffee and a filter piece that allows liquid to pass through while retaining solids, enabling the grounds to be removed with the container, eliminating the need for filter paper disposal and cup cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional filter paper and filter cup are used, then filtering function is achieved, but preparation time and cleaning effort increase significantly

Engineering Contradiction:

Improvepreparation effortVSAvoidpreparation time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The patent combines the filter cup and filter paper into a single integrated filter container structure. The filter container includes a cup body with an integrated filter layer, eliminating the need to separately handle filter paper and filter cup. This merging reduces preparation steps and time while maintaining effective filtration functionality.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The filter container is designed as a disposable product that can be used once and then discarded with the coffee grounds. This eliminates the need for cleaning the filter cup and disposing of filter paper separately, significantly reducing preparation effort and time for subsequent brewing sessions.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

2Productivity

If filter paper and filter cup are used separately, then filtration is effective, but the number of components to be handled increases

Engineering Contradiction:

Improvebrewing efficiencyVSAvoidnumber of components

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The filter cup and filter paper are merged into a single filter container component. The cup body includes an integrated filter layer that combines the functions of both the cup and the filter paper, reducing the number of components from two to one and thereby improving brewing efficiency.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The filter container serves multiple functions within a single component: it acts as the cup body to hold coffee, provides filtration through its integrated filter layer, and contains the grounds for easy disposal. This multi-functionality reduces device complexity while maintaining effective filtration.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

Simplifies the coffee brewing process by reducing preparation effort and time, enhancing efficiency through integrated filtration and easy disposal of coffee grounds.

Implementation Method 1

a filter piece at one side of the main part for filtering the coffee

Methodology Applied

Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP4193887B1Filter container, filter assembly, and extraction device

Publication Date: 2026.01.21 WISTRON CORP

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AI summary

A filter container (1) includes a main part (10) and a filter piece (20, 20'), the main part includes a surrounding portion (11), an opening (O1), and a coupling portion (O2), the opening and the coupling portion are respectively located at two opposite sides of the surrounding portion, the filter piece is arranged at the coupling portion.