Arrow-Shaped Receiver Reinforcement for Filter Cassette Locking

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Solution Overview

Problem

Water purification systems using polymers like polypropylene or polyethylene face structural integrity issues due to the flexibility of these materials, which can lead to weakness at stress points, and the use of stronger materials like polycarbonate raises concerns about leaching into purified water.

Innovation Solution

A receiver with an arrow-shaped elongated member and reinforcement members is designed to provide structural support, using polymers like polypropylene or polyethylene, and optionally fiberglass, ceramic, or metallic materials, to securely engage a locking clip on the cassette filter housing, preventing breakage and ensuring reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Weight of moving object

If polymers like polypropylene or polyethylene are used for the receiver, then the receiver is lighter and more pliable, but the structural integrity and strength at stress points deteriorate

Engineering Contradiction:
Improvereceiver weightVSAvoidstructural integrity
Core Design Contradiction:
Weight of moving objectVSStrength

Solution Approach 1:

The receiver is constructed as a composite structure combining polymer material (polypropylene or polyethylene) with reinforcement members made of stronger materials such as fiberglass, ceramic, or metal. This composite approach allows the receiver to maintain the light weight and pliability of polymers while incorporating the strength and rigidity of reinforcement members at critical stress points, thereby resolving the contradiction between weight reduction and structural integrity

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The reinforcement members are strategically positioned at specific stress points (such as the locking clip engagement area and mounting interfaces) rather than uniformly throughout the entire receiver. This localized reinforcement provides strength exactly where needed while preserving the overall light weight and pliability of the polymer structure in non-critical areas

Inventive Principle:
Principle #3Local quality

2Strength

If polycarbonate is used for the receiver, then the structural integrity is improved, but material leaching into purified water occurs

Engineering Contradiction:
Improvestructural integrityVSAvoidmaterial leaching
Core Design Contradiction:
StrengthVSObject-generated harmful factors

Solution Approach 1:

The receiver uses a composite construction with polymer base material (polypropylene or polyethylene) that is free from leaching issues, combined with reinforcement members (fiberglass, ceramic, or metal) that provide the necessary structural strength. This composite approach eliminates the harmful leaching effect associated with polycarbonate while maintaining structural integrity through the reinforcement members

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The design accepts that the receiver may have a limited service life due to the use of softer polymer materials, but this is acceptable given that these materials do not leach into purified water. The receiver can be replaced periodically, and the lack of leaching contamination makes this acceptable trade-off for water purification applications

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Ease of manufacture

If softer, more pliable materials are used for the receiver, then ease of manufacture is improved, but reliability in preventing unlatching deteriorates

Engineering Contradiction:
Improvemanufacturing easeVSAvoidlocking reliability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The receiver combines easily manufacturable polymer materials with reinforcement members to create a component that is both easy to manufacture and reliable in function. The polymer portion can be easily molded and formed, while the added reinforcement members provide the structural reliability needed for the locking mechanism to prevent unlatching under operational stresses

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS9061225B2Reinforced receiver for cassette filter locking clip
Publication Date: 2015.06.23 KX TECHNOLOGIES LLC
  • US9061225B2 patent drawing
  • US9061225B2 patent drawing
  • US9061225B2 patent drawing

AI summary

A receiver for a cassette filter housing having an upper housing surface. The receiver comprises an arrow shaped elongated member having ends. The elongated member may be parallel with an upper surface of the cassette and may include a base portion attached to the upper housing surface the cross-section of which is a substantially planer segment extending to the upper surface. The elongated member includes an upper receiver portion having at least one cavaliered retaining surface. The receiver includes a first reinforcement member extending outward from the base portion adjacent one of the ends of the elongated member and perpendicular to the elongated member, and a second reinforcement member extending outward from the base portion adjacent the opposite end of the elongated member and perpendicular to the elongated member the reinforcement members affixed to the base portion and the upper housing surface.