Disposable Coffee Brewing Pouch With Predefined Filter Flow Path
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Solution Overview
Problem
Existing coffee brewing methods require specialized equipment and are costly to manufacture, with a need for a disposable solution that can produce high-quality coffee without machines or conventional filters.
Innovation Solution
A disposable brewing device with a predefined flow path and filter arrangement that connects a contact volume to a target volume, allowing for efficient filtering of hot liquid during brewing, using liquid-impermeable materials and a self-standing design for easy use and disposal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a disposable brewing device is designed without specialized equipment, then ease of operation is improved, but manufacturing precision may worsen due to the need for simple construction
Solution Approach 1:
The filter arrangement utilizes porous material with controlled pore sizes to achieve effective filtering without complex mechanical structures. The porous structure allows liquid to pass through while retaining coffee grounds, providing both manufacturing simplicity and functional effectiveness.
Solution Approach 2:
The invention changes the parameter of filter pore size distribution to optimize brewing performance. By controlling the pore size parameters of the porous material, the device achieves effective filtration and brewing without requiring complex manufacturing precision.
2Productivity
If a foldable funnel frame is added to the package, then filtering efficiency is improved, but device complexity increases due to separate body construction
Solution Approach 1:
The filter arrangement is merged directly with the pouch structure, eliminating the need for a separate foldable funnel frame. The filter material is integrated into the pouch walls, combining the containment and filtering functions into a single unified structure.
Solution Approach 2:
The pouch structure serves multiple functions simultaneously: it contains the coffee grounds, provides structural support, and acts as the filter medium through its porous walls. This multi-functionality eliminates the need for separate specialized components.
3Ease of operation
If the bottom of the sachet is opened for liquid introduction, then ease of operation is improved, but reliability worsens due to potential clogging issues
Solution Approach 1:
Instead of opening the bottom for liquid introduction, the invention inverts the approach by sealing the bottom and introducing liquid through the top. Liquid is poured into the pouch through the top opening, flows down through the porous filter walls, and exits through the sealed bottom, preventing clogging issues.
Solution Approach 2:
The porous filter material acts as an intermediary that controls liquid flow through its pore structure. This intermediary mechanism ensures reliable filtration while maintaining ease of operation through simple top-loading liquid introduction.
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 solution provides a quick, convenient, and cost-effective method for brewing high-quality coffee, reducing equipment needs and manufacturing costs while ensuring efficient filtering and aroma utilization.
Implementation Method 1
a predefined flow path ensuring that hot liquid contained in the brewing container during brewing is filtered at the latest when the hot liquid is poured out of the brewing container
Data Source
AI summary
The invention relates to a disposable brewing device including at least one contact volume connectable with at least one target volume, the at least one contact volume and the at least one target volume being separated by at least one filter arrangement, the at least one contact volume and the at least one target volume defining at least one predefined flow path through filter arrangement.