Water Filter Plug Mechanism for Timely Cartridge Replacement
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Solution Overview
Problem
Existing water filters, particularly those using activated carbon, fail to effectively prevent microbial contaminants like bacteria from passing through and often require replacement every six months, with consumers often neglecting to replace them on time, leading to potential bacterial growth and reduced filtration efficiency.
Innovation Solution
A water filter design featuring a casing with a filtering media and a plug supported by water-soluble supports that gradually dissolve, blocking water flow after a set period to prompt filter replacement, ensuring timely maintenance and preventing bacterial growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a water filter with activated carbon is used to remove contaminants, then adsorption of volatile organic compounds is improved, but the pore surfaces become saturated and can no longer adsorb incoming contaminants
Solution Approach 1:
The patent applies preliminary action by installing a plug at the inlet of the filter housing before the filter element is installed. This plug is designed to break down over time and eventually block water flow, serving as a pre-set mechanism to force filter replacement before the activated carbon becomes saturated and ineffective, thereby maintaining reliable adsorption capacity throughout the service life.
2Reliability
If the filter is replaced every six months to prevent bacteria growth, then microbial contamination is reduced, but consumers often forget to replace the filter on time
Solution Approach 1:
The patent applies self-service by incorporating a plug that automatically breaks down over time and blocks water flow without requiring consumer intervention or monitoring. This self-activating mechanism ensures the filter is replaced at the appropriate interval to maintain microbial safety, eliminating the need for consumers to remember or track replacement schedules.
Solution Approach 2:
The patent applies feedback by creating a physical signal (blockage of water flow) that directly communicates to the consumer when the filter needs replacement. The gradual breakdown of the plug provides a tangible, observable indication that the filter has reached its service life, giving immediate feedback that prompts timely replacement to maintain microbial safety.
3Loss of time
If the plug blocks water flow to encourage replacement, then filter maintenance timing is improved, but water flow through the chamber is impeded
Solution Approach 1:
The patent applies periodic action by designing the plug to break down gradually over a predetermined time period, allowing normal water flow during the service life of the filter. The blockage occurs periodically at the end of this predetermined period, serving as a timely indicator for replacement without continuously impeding water flow during normal 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 solution ensures timely filter replacement, maintaining filtration efficiency and preventing bacterial growth by impeding water flow after the supports dissolve, thus encouraging users to replace the filter, ensuring continuous effective water purification.
Implementation Method 1
A water soluble support is mounted to the plug. The at least one water soluble support is configured to position the plug in order to permit the flow of water through the chamber of the casing
Implementation Method 2
Similarly, volatile organic compounds such as chloroform, lindane, and atrazine can be adsorbed into pore surfaces as water moves through the carbon block
Implementation Method 3
The block of activated carbon has pores that permit a flow of water through the block. By passing through the pores, contaminants such as sand, rust, and cysts within the flow of water can be mechanically filtered out of the water
Data Source
AI summary
A water filter is provided. The water filter includes a casing with a filtering media disposed within the casing. The water filter also includes a plug and a water soluble support. The plug can impede a flow of water through the chamber in order to encourage replacement of the water filter.