Beverage Capsule Code Arrangement for Centrifugal Reading Reliability
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Solution Overview
Problem
Existing beverage preparation machines face challenges in reliably and conveniently reading information from capsules, especially when using centrifugal forces for extraction, as previous identification methods are not adapted for this process.
Innovation Solution
A capsule design with a code arranged along an arc-shaped or circular path on its circumference, which can be read while rotating, ensuring reliable information retrieval and adjustment of machine parameters, using optical or inductive sensors for reading the code, preferably repeated for redundancy and placed on the rim to avoid soiling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a code is placed on the capsule body for identification, then the capsule can be identified by reading means, but the code reading becomes unreliable when the capsule rotates during centrifugal extraction
Solution Approach 1:
The code is arranged in a circular pattern on the rim flange of the capsule, concentric with the rotation axis. This circular arrangement ensures that during centrifugal rotation, the code remains in a consistent radial position relative to the reading means, allowing reliable detection regardless of the capsule's rotational state
Solution Approach 2:
The code is positioned on the rim flange at a location that allows reading to occur before the capsule is fully inserted into the extraction chamber or during the initial phase of operation. The reading means is positioned to detect the code on the rim flange before centrifugal forces fully engage, ensuring identification occurs at an optimal moment
2Measurement precision
If the code is placed on the capsule surface, then identification can occur, but the code may become soiled during beverage preparation affecting readability
Solution Approach 1:
The code is extracted from the main body of the capsule and placed specifically on the rim flange, which is positioned outside the extraction chamber during beverage preparation. This location is not exposed to beverage ingredients, water injection, or liquid flow, thereby preventing soiling and maintaining code readability throughout the brewing process
3Reliability
If a magnetic reading head turns to read the code, then the code can be detected, but the device complexity increases
Solution Approach 1:
The circular code arrangement on the rim flange allows the capsule itself to present the code to a stationary reading means during insertion or positioning. The capsule's own movement during loading serves to bring the code into the detection zone of the fixed reading means, eliminating the need for a mechanically complex turning or moving reading head
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 provides a reliable and efficient method for identifying capsules within beverage production machines, reducing preparation time and ensuring accurate parameter control during beverage extraction.
Implementation Method 1
rotating the receptacle at elevated speed to ensure interaction of liquid with powder while creating a gradient of pressure of liquid in the receptacle; such pressure increasing gradually from the centre towards the periphery of the receptacle
Data Source
AI summary
Capsule for the preparation of a beverage comprising a container and a beverage ingredient contained therein. The container comprises a code adapted for being identified or read by external reading means. The code is arranged on the container to be read while the capsule is rotated around an axis of rotation traversing the capsule.