Fibrous Filter Element With Protrusion Joining Member

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Solution Overview

Problem

Existing filter technologies face challenges in achieving desired lengths and efficiency due to the complexity and potential failure modes of using joiner caps to combine filter elements and cartridges.

Innovation Solution

The development of a porous filter element comprising fibrous sections joined by a joining member with a protrusion, allowing for the creation of filter elements and devices with fewer parts, less complex machinery, and reduced labor, while maintaining filter quality and efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If joiner caps or locks are used to combine filter elements and cartridges, then filters of desired lengths can be provided, but the device complexity increases and potential failure modes are introduced

Engineering Contradiction:

Improvefilter element lengthVSAvoidjoining mechanism complexity

Core Design Contradiction:

Length of moving objectVSDevice complexity

Solution Approach 1:

The joining member is integrated directly into the filter element structure, merging the filter media and joining function into a single component. This eliminates separate joiner caps or locks, reducing device complexity while maintaining the ability to combine filter elements of desired lengths through direct integration of the joining function into the filter element itself

Inventive Principle:

Principle #5Merging (Combining)

2Length of moving object

If joiner caps or locks are used to combine filter elements and cartridges, then filters of desired lengths can be provided, but the reliability decreases due to potential failure modes

Engineering Contradiction:

Improvefilter element lengthVSAvoidjoining mechanism reliability

Core Design Contradiction:

Length of moving objectVSReliability

Solution Approach 1:

By integrating the joining member into the filter element structure itself, the invention eliminates separate joining components that could fail independently. The merged structure reduces the number of potential failure points and interfaces, thereby improving reliability while still enabling combination of filter elements to achieve desired lengths

Inventive Principle:

Principle #5Merging (Combining)

3Length of moving object

If joiner caps or locks are used to combine filter elements and cartridges, then filters of desired lengths can be provided, but the manufacturing process becomes more complex requiring more parts and machinery

Engineering Contradiction:

Improvefilter element lengthVSAvoidmanufacturing process simplicity

Core Design Contradiction:

Length of moving objectVSEase of manufacture

Solution Approach 1:

The joining member is formed as an integral part of the filter element during the same manufacturing process, eliminating the need for separate production and assembly of joining components. This integration reduces the total number of parts, simplifies manufacturing machinery requirements, and streamlines the production process while still enabling filter elements to be combined to achieve desired lengths

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS11786845B2Filter element

Publication Date: 2023.10.17 PALL CORP

AI summary

Fibrous porous filter elements formed by joining two fibrous porous sections, porous filters comprising the joined sections, filter baskets and filter devices comprising the elements and filters, methods of making the filter elements and filters, and methods of filtration using the filter elements and filters, are disclosed.