Beverage Capsules with Flexible Seals for Incompatible Ingredients

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Solution Overview

Problem

Existing beverage brewing capsules are unsuitable for containing multiple incompatible ingredients, prone to adverse reactions, and require precise alignment with clamping apparatus, leading to manufacturing challenges and inconsistent brewing performance.

Innovation Solution

A beverage preparation capsule with flexible film material bonded by peelable seals, allowing the brewing chamber to expand and separate incompatible ingredients, ensuring proper alignment and support under high pressures without bursting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple beverage preparation ingredients are placed in the same capsule, then the capsule can prepare multiple beverage types, but incompatible ingredients undergo adverse reactions leading to spoilage

Engineering Contradiction:
Improvecapsule compatibility with multiple beverage typesVSAvoidingredient stability during storage
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The capsule is divided into multiple separate compartments, each containing a different beverage preparation ingredient. The compartments are separated by partition walls that prevent direct contact between incompatible ingredients during storage, eliminating adverse reactions while maintaining the ability to prepare multiple beverage types.

Inventive Principle:
Principle #1Segmentation

2Strength

If a rigid brewing chamber is used to support the capsule under high pressure, then the capsule can withstand brewing pressures, but the capsule shape must precisely match the chamber geometry requiring precise alignment

Engineering Contradiction:
Improvecapsule pressure resistanceVSAvoidcapsule-chamber alignment precision
Core Design Contradiction:
StrengthVSManufacturing precision

Solution Approach 1:

The capsule uses flexible film material that can deform and adapt to the brewing chamber geometry. This flexibility allows the capsule to maintain structural integrity under high pressure while accommodating variations in chamber shape and alignment, eliminating the need for precise geometric matching between capsule and chamber.

Inventive Principle:
Principle #30Flexible shells and thin films

3Adaptability or versatility

If the capsule is made deformable to fit different chamber shapes, then the capsule can be used in various brewing devices, but the coffee may be insufficiently compacted and the capsule is at risk of bursting

Engineering Contradiction:
Improvecapsule adaptability to different brewing devicesVSAvoidcapsule integrity under pressure
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The capsule employs dynamic characteristics where the flexible walls can deform during insertion to adapt to chamber geometry, then maintain structural stability during brewing. The material properties allow the capsule to be sufficiently compliant for insertion while providing adequate strength to withstand brewing pressures without bursting.

Inventive Principle:
Principle #15Dynamics

4Strength

If permanent seals are used between flexible film sheets, then the capsule maintains structural integrity, but the brewing chamber cannot expand to fill the clamp assembly space

Engineering Contradiction:
Improvecapsule structural integrityVSAvoidbrewing chamber expandability
Core Design Contradiction:
StrengthVSVolume of moving object

Solution Approach 1:

The capsule is designed with pre-formed expansion capability where the flexible film structure is prepared to expand during the brewing process. The clamp assembly applies external pressure that causes the capsule to expand from its compressed transport state, allowing the brewing chamber to fill the available space while maintaining structural integrity through the flexible material properties.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3615454B1Beverage preparation capsules
Publication Date: 2025.08.27 LUIGI LAVAZZA SPA
  • EP3615454B1 patent drawingFigure 1~2
  • EP3615454B1 patent drawingFigure 3~4
  • EP3615454B1 patent drawingFigure 5~6

AI summary

The present invention relates to beverage preparation capsule containing a beverage preparation ingredient, and methods for the preparation of beverages. In one aspect, these include beverage preparation capsules for use in beverage preparation apparatus comprising a clamp assembly suitable for preparing espresso-type beverages.