Universal Thread Structure for Faucet Aerator Compatibility

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Solution Overview

Problem

Existing water faucet aerators are limited by metric and imperial thread specifications, leading to incompatible fittings and consumer frustration, as well as increased production and inventory complexities for manufacturers.

Innovation Solution

A universal thread structure for aerators is designed, allowing engagement and locking with both metric and imperial internal and external threads, using calculated pitch, major diameter, and pitch diameter specifications to ensure compatibility across different measurement systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate metric and imperial aerators are produced for different faucet specifications, then proper engagement and locking is achieved, but product variety and inventory complexity increase

Engineering Contradiction:

Improvethread engagement reliabilityVSAvoidproduct specification variety

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The aerator is designed with a universal thread structure that can engage with both metric and imperial faucet threads. The internal thread of the aerator is configured with parameters that accommodate both measurement systems, allowing a single aerator design to serve multiple faucet specifications without compromising engagement reliability

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The thread parameters (pitch, major diameter, pitch diameter) of the aerator are specifically calculated and optimized to create a universal fit. By adjusting these parameters within certain ranges, the aerator can properly engage with both metric and imperial threads, transforming a single-product solution that previously required multiple specifications

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If consumers purchase aerators without specification knowledge, then buying convenience is improved, but wrong specification purchases and returns increase

Engineering Contradiction:

Improveaerator purchasing convenienceVSAvoidtime for returns and exchanges

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The universal thread structure eliminates the need for consumers to distinguish between metric and imperial specifications. A single aerator design works with both systems, so consumers can purchase without specification knowledge and still achieve proper fit, eliminating time loss from returns and exchanges

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If forced engagement of different thread specifications is attempted, then universal compatibility is improved, but engagement quality and sealing performance deteriorate

Engineering Contradiction:

Improvefaucet aerator compatibilityVSAvoidthread engagement quality

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

Instead of forcing incompatible threads together, the aerator's internal thread parameters are mathematically optimized to create a universal engagement pattern. The pitch, major diameter, and pitch diameter are calculated to accommodate both metric and imperial external threads, ensuring proper engagement quality and sealing performance for both systems

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS9145991B2Thread structure of an aerator for water faucet outlet

Publication Date: 2015.09.29 CHUAN WEI METAL

AI summary

A thread structure of an aerator for a water faucet, wherein based on the pitch, the major diameter and the pitch diameter of the metric and imperial threads of water faucets and the variation tolerance, universal measurements of the corresponding pitch, major diameter and pitch diameter and the variation tolerance for the aerator are calculated.