Detachable Core Cylindrical Filter Cartridge
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Solution Overview
Problem
Existing filter cartridges with permanently installed metal cores pose disposal challenges due to incineration difficulties and resource-intensive production of non-cylindrical end caps, limiting recyclability and environmental sustainability.
Innovation Solution
A detachable core system for cylindrical filter cartridges featuring a wire frame with vertical struts, non-circular rings, and flanges allows for easy insertion and removal of the core, enabling the use of cylindrical filter elements to form non-cylindrical shapes and facilitating recyclability of metal components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a permanently installed metal core is used in filter cartridges, then the structural stability and shape maintenance are improved, but the disposal difficulty and environmental harm increase due to incineration challenges
Solution Approach 1:
The filter cartridge is divided into separable components: a reusable metal core and disposable filter elements (socks or bags). The metal core can be detached and reused, while the filter elements are removed and disposed of through incineration without metal contamination, resolving the disposal difficulty while maintaining structural stability during use
Solution Approach 2:
The metal core is designed to be recovered and reused across multiple filter cartridges, while only the consumable filter elements are discarded. This recovery approach eliminates the need to dispose of metal components with hazardous filter material, solving the incineration problem while preserving structural integrity
2Adaptability or versatility
If non-cylindrical end caps are used to create non-cylindrical filter cartridges, then the adaptability to different applications is improved, but the manufacturing complexity and resource consumption increase
Solution Approach 1:
A single cylindrical metal core design serves multiple functions by accommodating different filter element types (socks, bags, pleated filters) and can be used in various configurations. The core itself remains cylindrical and simple to manufacture, while the filter elements provide the application-specific shaping, eliminating the need for complex non-cylindrical core manufacturing
Solution Approach 2:
Instead of making the core non-cylindrical to achieve non-cylindrical filter shapes, the invention inverts the approach by using a simple cylindrical core with filter elements that are formed into the required non-cylindrical shapes. This reverses the traditional design logic and simplifies core manufacturing while maintaining application versatility
3Loss of substance
If a detachable core system is implemented, then the recyclability and ease of disposal are improved, but the device complexity increases due to additional mounting and detachment mechanisms
Solution Approach 1:
The detachable connection is achieved by segmenting the core into modular components (vertical struts, rings, flanges) that can be easily assembled and disassembled. The mounting mechanism uses simple resilient engagement between the lower ring and lower flange, avoiding complex fastening systems while enabling easy detachment for recycling and disposal
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
Enables efficient recycling of metal cores and easy incineration of non-metallic components, while allowing standard cylindrical filter elements to be adapted for non-cylindrical applications, reducing resource consumption and environmental impact.
Implementation Method 1
the lower ring includes a means for detachably mounting to the lower flange thereby allowing the filter cartridge to be inserted and detached from the core by sliding the cartridge on and off of the core along the longitudinal direction
Data Source
AI summary
The present device is a detachable core for use with a cylindrical filter cartridge. The core includes a wire frame including at least two vertical struts oriented along a longitudinal direction. The wire frame includes an upper ring and a lower ring mounted to the distal ends of the vertical struts and further includes an upper flange and a lower flange mounted to the upper and lower rings respectively, wherein the lower flange is detachably mounted to the lower ring. Preferably the lower ring includes a gap in the lower ring to enable resilient compression of the ring by squeezing the lower ring in a radial inward direction prior to engagement with the lower flange. Preferably the cartridge filter includes elastomeric end caps and the cooperating rings and flanges are non-circular such that the elastomeric end caps conforms to the non-circular shape of the upper and lower flanges.