Coffee Cartridge Cage Filter Support Structure
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Solution Overview
Problem
Existing coffee brewing cartridges face issues with filter sagging and tearing, leading to reduced coffee capacity and flavor extraction efficiency, as well as environmental concerns due to non-recyclable materials.
Innovation Solution
A cartridge design featuring a fluid impermeable cup with a novel cage structure that supports a fluid permeable filter, allowing for intimate contact with the cup interior to prevent fluid leakage and enhance brewing efficiency, while being recyclable and capable of carrying more coffee.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the filter is directly joined to the interior surface of the cup, then the filter is supported and positioned, but the filter sags and tears under the weight of coffee, reducing capacity and extraction efficiency
Solution Approach 1:
A cage structure made of substantially rigid material is introduced as an intermediary between the filter and the cup interior surface. The cage supports the filter body and distributes the weight of the coffee across multiple contact points, preventing filter sagging and tearing while enabling increased coffee capacity.
2Quantity of substance
If the filter body is larger to hold more coffee, then coffee capacity increases, but the filter sags and tears more easily
Solution Approach 1:
The cage acts as a supporting intermediary that enables the filter body to be larger without sacrificing durability. By distributing the load through the rigid cage structure, the filter can accommodate more coffee while maintaining structural integrity and preventing sagging.
3Reliability
If the cage structure is added to support the filter, then filter stability and coffee capacity improve, but the device complexity increases
Solution Approach 1:
The support function is segmented from the filter itself and transferred to a separate cage structure. This segmentation allows the filter to focus on filtration while the cage provides structural support, improving stability without requiring the filter material itself to be overly complex.
4Strength
If non-recyclable materials are used for the cage and filter, then structural requirements are met, but environmental concerns arise
Solution Approach 1:
The material parameters of the cage and filter are changed from non-recyclable to recyclable materials. The cage is made from recyclable plastic and the filter from recyclable paper or mesh, maintaining the required structural properties while enabling environmental sustainability through recyclability.
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 cartridge design improves coffee capacity by up to 20% and increases flavor extraction by 15-20% compared to prior art, while being environmentally friendly due to recyclable components.
Implementation Method 1
a retainer that includes a fluid permeable filter that retains a mass
Implementation Method 2
a cage that supports the filter body inside of the cup
Implementation Method 3
Exposure to the hot water so injected for a short period of time brews the substance inside the cartridge to produce a brewed beverage
Implementation Method 4
flavor extraction by 15-20%
Data Source
AI summary
Disclosed is a cartridge for retaining a mass of, for example, ground coffee, that includes a cup, a filter, and a cage that supports the filter inside the cup.


