Capsule Sealing Lips for Collar-Free Brewing Extraction
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Solution Overview
Problem
Existing extraction apparatus for drinks rely on conical beaker-shaped capsules with a circumferential collar for sealing, which is space-consuming and prone to damage, limiting their suitability for different capsule shapes and brewing mechanisms.
Innovation Solution
An extraction apparatus with an elastically deformable sealing system featuring circumferential sealing lips or beads that press against the capsule wall, eliminating the need for a supporting counter-element and allowing for reliable sealing across various capsule shapes and brewing mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conical beaker shape with a circumferential collar is used for capsules, then sealing function is achieved, but storage space increases and the collar becomes prone to damage
Solution Approach 1:
The invention extracts the sealing function from the collar structure and relocates it to the brewing chamber via sealing lips or beads. The collar is removed entirely, and the sealing action is performed by elastic sealing elements that press against the capsule wall directly, eliminating the need for the collar to provide sealing support.
Solution Approach 2:
The invention introduces sealing lips or sealing beads as intermediary elements between the brewing chamber and the capsule. These elastic sealing elements act as mediators that transfer and distribute the clamping force uniformly around the capsule, achieving reliable sealing without requiring a rigid collar structure.
2Reliability
If a conical beaker shape with a circumferential collar is used for capsules, then sealing function is achieved, but the collar is easily damaged during mechanical use
Solution Approach 1:
The sealing function is extracted from the rigid collar and transferred to flexible sealing lips or beads integrated into the brewing chamber. This eliminates the collar's sealing responsibility, allowing it to be removed entirely or reduced to a simple positioning element that cannot be damaged during operation.
Solution Approach 2:
The invention employs elastic sealing lips or sealing beads made of flexible material that can deform and adapt to the capsule surface. These flexible sealing elements absorb mechanical stresses and are resistant to damage, replacing the fragile rigid collar structure.
3Reliability
If sealing is achieved by clamping the collar between a seal and counter-element, then sealing function is achieved, but the system becomes dependent on specific capsule geometry
Solution Approach 1:
The sealing lips or sealing beads are designed with elastic properties that allow them to adapt to various capsule geometries. The same sealing mechanism can effectively seal different capsule shapes (cylindrical, conical, spherical) by deforming to match the capsule surface, providing universal sealing capability across multiple capsule types.
Solution Approach 2:
The sealing system utilizes the elastic properties of the sealing lips or beads, which can change their physical parameters (shape, volume) under compression. This allows the sealing elements to conform to different capsule geometries by adjusting their deformation characteristics, enabling compatibility with various capsule shapes without modifying the sealing mechanism itself.
4Adaptability or versatility
If sealing is achieved by pressing the capsule wall against the capsule interior using sealing lips, then versatility for different capsule shapes is achieved, but high pressure is required
Solution Approach 1:
The elastic sealing lips or sealing beads act as flexible elements that distribute the applied pressure uniformly around the capsule circumference. This flexible sealing approach allows effective sealing at lower pressures compared to rigid clamping mechanisms, as the elastic material conforms to the capsule surface and maintains continuous contact under reduced force.
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 versatile and durable sealing system that maintains capsule position and prevents fluid diversion, even under high pressures, suitable for diverse capsule shapes and brewing mechanisms, enhancing operational efficiency and reducing storage space requirements.
Implementation Method 1
dieselbares Dichtelement, welches die Kapselwand gegen einen Kapselinnenraum andrückt
Data Source
AI summary
An extraction apparatus includes a brewing module for receiving a capsule with an extraction material. The brewing module includes a first brewing module part and a second brewing module part, the second brewing part being movable relative to the first brewing part. The first and the second brewing module parts form a discharge device for the discharge of an extraction product out of the capsule, and an introduction device for introducing an extraction fluid into the capsule. A sealing system for such an extraction apparatus includes a seal having at least one circumferential sealing lip and/or one circumferential sealing bead, which bears on a surface of the capsule in a line-like or strip-like manner and presses the capsule wall against the capsule interior.