A brewing element with a central inlet
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Solution Overview
Problem
Existing espresso machine brewing elements require rigid and costly constructions to withstand high pressure, increasing production and consumer costs.
Innovation Solution
A self-supporting, tubular-shaped brewing element made of aluminum with a central inlet, which can be integrated into a disposable cup, eliminating the need for external support and allowing hermetic sealing without additional parts, suitable for use with espresso machines and portable brewing systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid construction is used to support the capsule during high pressure brewing, then the capsule can withstand high pressure forces, but the production cost and consumer cost increase
Solution Approach 1:
The patent applies this principle by using a thin-walled tubular brewing element made of flexible material that can deform under pressure rather than requiring rigid construction. The flexible wall allows the element to withstand high pressure forces through elastic deformation, eliminating the need for expensive rigid support structures while maintaining structural integrity during brewing
Solution Approach 2:
The patent transitions from a traditional flat or spherical capsule design to a three-dimensional tubular structure with a central inlet. This dimensional change allows water to flow axially through the center of the tube, creating more uniform pressure distribution and reducing peak stresses on the wall, thereby enabling the use of thinner, less expensive materials
2Stability of the object's composition
If a rigid chamber structure is used to hold the capsule, then the capsule is firmly held in place, but the device complexity and cost increase
Solution Approach 1:
The tubular brewing element is designed to be self-supporting and self-positioning within the brewing chamber. The central inlet configuration and tubular geometry allow the element to maintain its position and stability through its own structural characteristics rather than requiring external rigid holding mechanisms, thereby simplifying the overall device design
Solution Approach 2:
The tubular structure with central inlet serves multiple functions simultaneously: it provides structural stability, defines the brewing chamber, guides water flow, and eliminates the need for separate support components. This multi-functionality reduces device complexity while maintaining positioning stability
3Reliability
If additional parts are used to seal the brewing element, then hermetic sealing is achieved, but the device complexity increases
Solution Approach 1:
The patent merges the sealing function directly into the tubular brewing element structure itself. The wall of the tube forms an integral part of the sealing system, eliminating the need for separate seals, gaskets, or closure components. This integration maintains hermetic sealing reliability while significantly reducing the number of parts
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 reduces production costs and simplifies the brewing mechanism while ensuring the brewing element can withstand high pressure and temperatures, ensuring even water flow and contact with brewing ingredients for optimal flavor, and allows for a flexible, simplified mechanism in next-generation espresso machines.
Implementation Method 1
Folding the lower, distal end of the tube material upon itself also performs a perfect hermetic sealing of the tube
Implementation Method 2
use of aluminum in the tubular brewing element makes for an excellent humidity buffer between the water surrounding the tube and the powdered brewing ingredients contained within the tube
Data Source
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AI summary
A portable beverage preparation device comprising a drink container containing a predetermined volume of a potable base liquid; at least one beverage preparation of a predetermined quantity; at least one sealed compartment for confining the beverage preparation; and a dispenser means for dispersing the at least one beverage preparation into the base liquid within the drink container; wherein the drink container and the at least one sealed compartment are in close physical proximity to each other and separated by at least one thin membrane which, when inwardly perforated by the dispenser means, disperses the at least one beverage preparation into the base liquid to make a beverage ready to drink.