Filter Housing With Removable Media Insert

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Solution Overview

Problem

Conventional water filtration systems require frequent replacement of entire filter assemblies, leading to waste and inefficiency, as the filter media and porous barriers lose effectiveness over time, necessitating frequent disposal of plastic housings and granules.

Innovation Solution

A multi-part filter assembly design featuring a filter housing and a removable filter media insert with tapered edges that securely seals within the housing, allowing for easy replacement of the media without discarding the entire assembly, along with orifice guards to prevent clogging and maintain flow rates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the entire filter assembly is replaced when filter media loses effectiveness, then contaminant reduction performance is maintained, but waste increases and resource efficiency decreases

Engineering Contradiction:

Improvecontaminant reduction performanceVSAvoidwaste

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The filter assembly is divided into separate components: a reusable filter housing and replaceable filter media inserts. This segmentation allows the housing to be retained and reused while only the depleted media is replaced, directly reducing waste and improving resource efficiency while maintaining filtration performance.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The design enables recovery and reuse of the filter housing while discarding only the depleted filter media. The housing can be cleaned and reused for multiple filtration cycles, significantly reducing the waste associated with discarding entire filter assemblies.

Inventive Principle:

Principle #34Discarding and recovering

2Reliability

If the entire filter assembly is replaced frequently, then filtration effectiveness is maintained, but manufacturing resources and shipping costs increase

Engineering Contradiction:

Improvefiltration effectivenessVSAvoidmanufacturing resources

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

By segmenting the filter into a durable housing and consumable media inserts, the system reduces the frequency of complete assembly replacements. The housing is manufactured once and reused, while only the media inserts are frequently replaced, reducing overall manufacturing resources and shipping costs.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The housing is recovered and reused across multiple filtration cycles, significantly reducing the manufacturing resources required compared to producing entirely new filter assemblies for each replacement. This extends the product lifecycle and reduces waste.

Inventive Principle:

Principle #34Discarding and recovering

3Loss of substance

If a removable filter media insert is implemented, then waste is reduced, but device complexity increases

Engineering Contradiction:

Improvewaste reductionVSAvoiddevice complexity

Core Design Contradiction:

Loss of substanceVSDevice complexity

Solution Approach 1:

The filter assembly is segmented into a housing and removable media insert, allowing easy separation and replacement. This simple segmentation reduces waste while adding minimal complexity, as the components are designed for straightforward assembly and disassembly without complex mechanisms.

Inventive Principle:

Principle #1Segmentation

4Reliability

If filter media is contained in a closed volume, then contaminant reduction is improved, but flow rate control becomes critical

Engineering Contradiction:

Improvecontaminant reductionVSAvoidflow rate

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

A flow control element acts as an intermediary component within the filter housing to regulate water flow rate. This mediator ensures consistent flow rates while maintaining the closed volume necessary for effective contaminant reduction, balancing filtration performance with productivity.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

This design extends the lifespan of the filter housing, reduces waste, and maintains efficient contaminant reduction performance by allowing for the replacement of filter media without replacing the entire assembly, thus minimizing environmental impact and shipping costs.

Implementation Method 1

The tapered edges of the filter media insert may have a profile that substantially matches a taper profile of the filter housing. Among other advantages, matching the taper of the filter media insert with the taper of the filter housing may encourage the filter media insert to seal against the filter housing.

Methodology Applied

Scientific EffectSealing:

Implementation Method 2

The granules and porous barrier can act to reduce contaminants

Methodology Applied

Scientific EffectFiltration: Filter (physical)

Implementation Method 3

the orifice may at least partially control a flow rate of water through the filter assembly

Methodology Applied

Scientific EffectFlow control:

Data Source

PatentUS20230295008A1Filter assemblies and methods of filtering with the same

Publication Date: 2023.09.21 BRITA LP

AI summary

A filter assembly or fluid filter includes a housing and a filter media insert. The filter media insert may be located in a cavity of the housing. The filter may include closure or cap that can be coupled to the housing to close the cavity. The closure and the housing may collectively form a substantially closed volume within which the filter media insert can be removably secured.