Beverage Capsule Filter Wall for Non-Stick Pressure Brewing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing beverage preparation systems face challenges in releasing capsules from support surfaces without active piercing means, especially when piercing elements are inactive or absent, leading to complex solutions and potential capsule rupture under high pressure.
Innovation Solution
The use of a capsule with a woven or non-woven filtering material as the third wall, which abuts the support surface, preventing sticking and allowing easy release, and a flexible porous sheet or foil with entrance openings for fluid supply, ensuring the capsule remains intact under high pressure without requiring active piercing elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If piercing elements are used to pierce the capsule during brewing, then fluid can enter the capsule, but the capsule sticks to the support surface and requires complex release mechanisms
Solution Approach 1:
The invention removes the third wall (filtering wall) from the capsule structure, extracting the source of the sticking problem. Without the third wall abutting the support surface, the capsule no longer sticks during brewing, eliminating the need for complex release mechanisms while maintaining brewing functionality through alternative filtration approaches
Solution Approach 2:
Instead of trying to release the capsule from the support surface after piercing, the invention inverts the approach by preventing adhesion in the first place through material selection and structural modification. The capsule bottom is designed with specific material properties that prevent sticking, making the release process simple and reliable
2Productivity
If the capsule is pressed against the support surface for brewing, then brewing efficiency improves, but the capsule may rupture under high pressure
Solution Approach 1:
The capsule bottom is constructed from flexible materials that can deform under high brewing pressure without rupturing. This flexibility allows the capsule to maintain contact with the support surface for efficient brewing while accommodating pressure variations, ensuring capsule integrity throughout the brewing process
Solution Approach 2:
The capsule employs composite material construction, particularly at the bottom wall, combining materials with different properties to achieve both structural integrity and pressure resistance. This composite structure allows the capsule to withstand high brewing pressures while maintaining brewing efficiency
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 solution enables efficient and reliable capsule release without active piercing means, prevents capsule rupture, and ensures homogeneous beverage extraction and filtration, improving the reproducibility and quality of the beverage preparation process.
Implementation Method 1
the woven or non-woven filtering material in the said outermost boundary of the capsule abuts the support surface, whereby, after use of the capsule, sticking of the capsule to the support surface is prevented and release of the capsule is promoted
Implementation Method 2
the second wall is formed by a flexible porous sheet, such as a sheet of filtering paper, a flexible foil, such as a polymeric film, provided with a plurality of entrance openings
Data Source
Figure 1a
Figure 1b
Figure 2a~2b
AI summary
The invention relates to a capsule (2), system and method for preparing a predetermined quantity of beverage suitable for consumption using an extractable product. The capsule comprises a circumferential first wall (14), a second wall (16) closing the circumferential first wall at a first end (18), and a flexible sheet-shaped perforate and/or porous third wall (20) closing the circumferential first wall at a second, open, end (22) opposite the second wall, wherein the first, second and third wall enclose an inner space (24) comprising the extractable product, wherein the third wall forms an outermost boundary of the capsule in an axial direction thereof, and wherein the third wall comprises a woven or nonwoven filtering material, such as filtering paper.