Multi-Stage Pool Cover Filter for Debris and Water Management
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Solution Overview
Problem
Existing methods for removing debris and rainwater from pool covers either flood the surrounding soil or clog the pool filter, leading to inefficiencies and reduced filter lifespan.
Innovation Solution
A multi-stage filter system comprising a filtering base with a cover, a first stage filter, and a second stage filter, along with a fluid transfer cap that allows for sequential filtration and distribution of filtered water, preventing debris and water from entering the pool filter directly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If debris and water are pumped onto the surrounding ground, then debris and water are removed from the cover, but the soil becomes flooded and oversaturated
Solution Approach 1:
The patent introduces an intermediary filtration system between the cover and the ground. The filter captures debris and water before they reach the ground, allowing water to be drained through the filter base while preventing debris from contaminating the soil. This mediator approach resolves the contradiction by providing a third path for water disposal that doesn't flood the ground.
Solution Approach 2:
The filtration system is divided into multiple functional components: a filter base with filtration material, a cover with opening, and a drainage system. This segmentation allows the system to handle different functions separately - filtration, drainage, and debris containment - thereby removing water and debris without flooding the surrounding soil.
2Productivity
If debris and water are pumped directly into the skimmer of the main pool filter, then debris and water are removed from the cover, but the pool filter becomes clogged and its lifetime is shortened
Solution Approach 1:
The patent creates an intermediary filtration system that acts as a protective barrier between the cover debris and the pool filter. The filter base with its filtration material captures debris and allows water to drain through, preventing clogged conditions in the main pool filter while maintaining continuous operation.
Solution Approach 2:
The system performs preliminary filtration before water reaches the pool filter. By filtering debris and water through the filter base beforehand, the main pool filter is protected from direct contact with contaminants, thereby extending its operational lifetime and reliability.
3Device complexity
If a single-stage filter is used, then the device complexity is low, but the filtration effectiveness is insufficient to prevent both soil flooding and filter clogging
Solution Approach 1:
The filtration system is segmented into multiple functional stages: a coarse filtration stage using the filter base material to capture large debris, and a drainage stage that allows water to pass through while preventing soil contamination. This multi-stage approach enhances filtration effectiveness without creating excessive complexity.
Solution Approach 2:
The filter base is nested within the cover structure, with the filtration material contained within the hollow interior. This nested configuration allows multiple filtration functions to be integrated into a compact design, improving effectiveness while maintaining reasonable device complexity.
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 multi-stage filter effectively removes debris and water, preventing soil flooding and filter clogging, while allowing for filtered water reuse within the pool system.
Implementation Method 1
a first stage filter positioned inside the housing of the second stage filter, the first stage filter having a body portion comprising a plurality of openings having a size that is larger than the size of the openings of the second stage filter
Data Source
AI summary
A multi-stage filter for filtering and removing fluids includes (1) a filtering base, and (2) a fluid transfer cap. The filter base includes: (i) a cover; (ii) a second stage filter positioned inside the housing of the cover; and (iii) a first stage filter positioned inside the housing of the second stage filter. The fluid transfer cap attaches to the first end of the cover and includes: (i) a first closed end; (ii) a second end having an opening that is positioned opposite the first end; (iii) an annular skirt that extends between the first and second ends; (iv) an annular shaped barrier member positioned inside and spaced apart from the annular skirt; (v) a fluid inlet comprising an extension member that extends through a side of the annular skirt to the annular shaped barrier member; and (vi) a fluid outlet.