Disposable Filter Sock with Two-Part Holder
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Solution Overview
Problem
Existing sock or bag-type filter devices for aquariums require messy and time-consuming cleaning processes, as they become clogged with debris, which restricts water flow and necessitates frequent removal and washing of the filter material.
Innovation Solution
A two-part filter holder with a disposable, pre-formed filter sock that includes a heat-bonded flange to prevent unfolding, allowing for easy assembly and quick replacement by snapping the retainer ring and flange apart, enabling easy detachment and disposal of used filters without the need for extensive cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a reusable sock filter is used, then filtration function is maintained, but cleaning time and complexity increase
Solution Approach 1:
The filter system is divided into two segments: a reusable holder and a disposable filter sock. The disposable sock can be quickly removed and replaced without cleaning the holder, resolving the contradiction between maintaining filtration function and reducing cleaning time.
Solution Approach 2:
The filter sock is designed as a disposable component that is inexpensive to replace. Users simply discard the used sock and insert a new one, eliminating the time-consuming cleaning process while maintaining continuous filtration functionality.
2Ease of operation
If a disposable filter sock is used, then maintenance effort is reduced, but assembly complexity increases
Solution Approach 1:
The holder is segmented into a body and a separate retainer ring that can be independently manipulated. This segmentation allows the retainer ring to be removed and reattached without affecting the holder body, simplifying the assembly process for disposable socks.
Solution Approach 2:
The retainer ring incorporates a flexible lip that can dynamically change position - bending outward to facilitate easy attachment of the disposable sock, and bending inward to secure it in place. This dynamic feature simplifies assembly while maintaining a secure connection.
3Ease of operation
If a two-part holder with retainer ring is used, then filter replacement is simplified, but holder structure complexity increases
Solution Approach 1:
The holder is divided into two functional parts: the holder body that provides structural support and the removable retainer ring that enables easy filter replacement. This segmentation allows each part to be optimized for its specific function, simplifying the replacement operation despite the increased structural complexity.
Solution Approach 2:
The retainer ring is designed to be temporarily removed during filter replacement and then recovered by snapping it back into place. This approach simplifies filter replacement while the retainer ring's reusable nature recovers the investment in the additional structural component.
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 simplifies the filtration process by allowing for quick and clean replacement of filter socks, reducing maintenance time and effort, while maintaining effective filtration performance.
Implementation Method 1
the filter sock includes an outer edge that is folded to create a pre-formed flange, which is heat bonded to prevent filter media from unfolding
Data Source
AI summary
A sock or bag-type liquid filtering device for use in filtering liquids such as water to remove debris includes a sock or bag of disposable filter material having a rim releasably secured to a two part filter holder. In one embodiment, the holder is designed to engage in an opening of a fish tank filter plate with the filter bag extending through the opening. A first holder part or flanged ring engages inside the rim of the bag and a second holder part or retainer ring engages over the flanged ring and bag rim. In one example the retainer ring is designed for snap engagement over the flanged ring with gripping formations on at least one of the parts, and the bag rim is gripped between the rings.