A tool for removing compacted particle residue from a cylindrical container
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Solution Overview
Problem
Compact particle residue, such as coffee grounds, becomes hardened and difficult to remove from cylindrical containers like cafetieres and espresso machines due to compaction during the brewing process, posing a challenge for efficient disposal.
Innovation Solution
A tool with a handle and angled blade sections designed to rotate within the container, allowing the leading edge to cut into and scrape out compacted grounds, assisted by a wall to retain the grounds for easy removal, is developed. The tool is configured to fit standard container sizes and is made from a non-toxic thermoplastic polymer for ease of use and cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cafetiere or similar device is used to prepare coffee by forcing water through compacted ground coffee, then coffee can be brewed effectively, but the compacted grounds become hardened and difficult to remove from the container
Solution Approach 1:
The tool divides the grounds removal function into two distinct parts: a cutting blade section that cuts and loosens the compacted grounds, and a wall section that retains and collects the loosened grounds. This segmentation allows each part to perform its specific function effectively, making the overall grounds removal process much easier
Solution Approach 2:
The tool acts as an intermediary device between the compacted grounds and the user's manual removal attempts. By introducing this intermediate tool with its blade and wall structure, the user can indirectly break up and collect grounds without directly struggling with the hardened mass, thereby easing the operation
2Reliability
If the grounds are compacted during the plunging process to allow proper brewing, then coffee extraction is improved, but the grounds form a hardened mass that resists removal
Solution Approach 1:
The tool converts the harmful effect of compacted hardened grounds (which are difficult to remove) into a beneficial feature by using the blade section to cut through and break up the hardness. The compacted grounds that were problematic for removal become the very material that the blade is designed to efficiently cut and the wall is designed to retain
Solution Approach 2:
The blade section changes the physical state of the compacted grounds by cutting and breaking them into smaller, less compacted pieces. This parameter change from a solid hardened mass to fragmented material makes the grounds much easier to remove while preserving the brewing quality that the compaction provided
3Ease of manufacture
If a simple plunger design is used for ease of manufacturing, then the device remains simple and cost-effective, but it cannot effectively remove compacted grounds
Solution Approach 1:
The tool maintains manufacturing simplicity by using only two basic geometric sections: a blade section and a wall section. These simple segmented forms are easy to manufacture while effectively performing the grounds removal function, avoiding the need for complex mechanisms
Solution Approach 2:
The tool is designed to be self-sufficient in its grounds removal function. The blade section automatically cuts and loosens grounds as the tool is inserted and rotated, while the wall section automatically retains and collects the loosened grounds. This self-service design eliminates the need for additional mechanisms or steps, keeping the device simple to manufacture while effective at operation
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 tool effectively loosens and removes compacted coffee grounds with minimal effort, ensuring easy disposal and reducing mess, suitable for various container sizes and easy to clean.
Implementation Method 1
the leading edge of the blade section moves into and through compacted particle residue within the cylindrical container
Implementation Method 2
the wall assists with keeping the grounds in position for ease of removal
Data Source
AI summary
A tool (1) for removing particle residue from a cylindrical container comprises a handle (2), configured to be grasped in the hand of a user to position the tool (1) and to rotate the tool (1) around an axis of rotation aligned substantially parallel to the handle (2), and at least one blade section (3) extending from the handle (2) at an angle to the axis of rotation, a user manipulating the handle (2) in use to cause the tool (1) to rotate about the axis of rotation so that the leading edge (4) of the blade section (3) moves into and through compacted particle residue within the cylindrical container.