Gravity-Fed Filter Interconnect With Coded Polymagnet Flow Release
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Solution Overview
Problem
Prior art filter interconnects face challenges with installation, removal, and replacement of filter cartridges, as well as authentication and anti-counterfeiting, particularly in gravity-fed filtration systems, where effective latching and flow control mechanisms are lacking, and there is a need for improved mechanisms that do not increase manufacturing cost or complexity.
Innovation Solution
The use of coded polymagnets to create a magnetic shear force that actuates a blocking member, allowing for fluid flow and ensuring proper filter cartridge installation, while also providing authentication and anti-counterfeiting features through correlated magnetism, utilizing a filter magnet and carrier magnet to move a carrier from a blocked to an open position, and ensuring a fluid-tight seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional magnets are used in filter interconnects, then magnetic attachment is achieved, but magnetic forces cause flipping and unreliable alignment
Solution Approach 1:
The patent uses asymmetric polarity arrangements in the polymagnet arrays, where each magnet has a specific polarity orientation that creates directional attraction forces. This asymmetry guides the filter cartridge into proper alignment with the hopper, preventing random flipping and ensuring reliable attachment only in the correct orientation.
Solution Approach 2:
The patent varies the polarity parameters of individual magnets within the array, creating a coded pattern of alternating polarities. This parameter variation generates spatially distributed magnetic forces that provide both attachment strength and alignment guidance, resolving the contradiction between reliable attachment and ease of alignment.
2Reliability
If correlated magnets with coded polymagnets are used, then authentication and anti-counterfeiting are achieved, but device complexity increases
Solution Approach 1:
The coded polymagnet array serves multiple functions simultaneously: it provides magnetic attachment force, guides alignment during installation, and enables authentication of genuine filter cartridges. By integrating these functions into a single magnetic structure, the patent avoids increasing overall device complexity while achieving reliable authentication.
Solution Approach 2:
The patent implements localized polarity variations within specific regions of the magnet array, creating coded patterns that enable authentication without requiring complete redesign of the entire magnetic structure. This localized approach maintains simplicity while adding authentication capability.
3Ease of operation
If magnetic shear force is used to actuate blocking member, then flow control is achieved, but manufacturing precision requirements increase
Solution Approach 1:
The blocking member is pre-positioned in a closed position before filter installation. The coded polymagnet array is designed to generate shear force automatically when the filter cartridge is inserted, actuating the blocking member from closed to open position without requiring additional adjustment or precision during operation.
Solution Approach 2:
The magnetic shear force mechanism is self-actuating based on the insertion motion itself. The relative movement between the filter cartridge magnets and hopper magnets during normal installation automatically generates the shear force needed to open the blocking member, eliminating the need for separate actuation mechanisms or high manufacturing precision.
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 enables easy installation and removal of filter cartridges with positive tactile feedback, effective fluid flow control, and authentication of genuine cartridges, reducing counterfeiting risks, all while maintaining a simple and cost-effective design.
Implementation Method 1
The interconnection structure utilizes a magnetic shear force to allow for filter cartridge installation and filtered fluid egress flow
Implementation Method 2
the interconnection scheme utilizes mating polymagnets on the filter cartridge and hopper, respectively, to present a rotational force to permit filter cartridge installation
Data Source
AI summary
A gravity-fed filtration system and method of initiating flow from a filter cartridge to a holding reservoir for a gravity-fed filtration system. The method comprises providing a filter cartridge having a filter magnet, a holding reservoir for filtered fluid, and a first reservoir having a recess receiving cavity in a bottom surface thereof for receiving ingress fluid. Upon inserting the filter cartridge into the recess receiving cavity and moving the filter magnet to be in in magnetic communication with the carrier magnet, a magnetic force moves the carrier magnet from a first position which blocks fluid flow, to said second position which allows fluid flow to the holding reservoir.