Faucet Lead Detection Device Integration

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Solution Overview

Problem

Older plumbing fixtures and piping can contain lead, which leaches into water, posing health risks due to corrosion, and existing technologies lack effective lead detection and alert systems in faucets.

Innovation Solution

Faucet assemblies equipped with a lead detection device that tests water for lead content using lead paper test strips or roll-to-roll configurations, providing automatic or user-initiated testing, and an indicator system to communicate results and remind users to perform tests, with options for wireless or wired communication and power supply.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If lead detection device is integrated into faucet assembly, then lead content in water can be detected, but device complexity increases

Engineering Contradiction:

Improvelead content detectionVSAvoidfaucet assembly structure

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines the lead detection device with the faucet assembly by integrating the controller, lead detection device, and indicator directly into the faucet body. This merging allows the faucet to perform both its primary function of water delivery and the secondary function of lead detection, resolving the contradiction by making the detection system an inherent part of the faucet rather than a separate external device.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The faucet assembly is designed to serve multiple functions: it delivers water to the user and simultaneously detects lead content in the water. The integrated system allows a single device to perform both water delivery and safety monitoring, reducing the need for separate detection equipment and simplifying the overall system architecture.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If automatic testing is implemented, then user convenience is improved, but use of energy increases

Engineering Contradiction:

Improvetesting operationVSAvoidpower consumption

Core Design Contradiction:

Ease of operationVSUse of energy by moving object

Solution Approach 1:

The controller is configured to automatically initiate lead content tests at predetermined time intervals without requiring continuous operation. This periodic testing approach allows the system to remain energy-efficient by activating the lead detection device only when needed, rather than continuously monitoring, thus balancing user convenience with energy conservation.

Inventive Principle:

Principle #19Periodic action

3Loss of information

If indicator system is added to communicate results, then information feedback is improved, but device complexity increases

Engineering Contradiction:

Improvelead content informationVSAvoidfaucet assembly structure

Core Design Contradiction:

Loss of informationVSDevice complexity

Solution Approach 1:

The indicator uses color changes to communicate lead content levels to the user. The indicator can display different colors (e.g., green for safe levels, red for high lead content) providing clear visual feedback without requiring complex display interfaces or additional communication components, thus minimizing the increase in device complexity while maximizing information feedback.

Inventive Principle:

Principle #32Color changes

4Ease of manufacture

If lead paper test strips are used, then manufacturing cost is reduced, but measurement precision may be limited

Engineering Contradiction:

Improvedetection device fabricationVSAvoidlead content measurement

Core Design Contradiction:

Ease of manufactureVSMeasurement precision

Solution Approach 1:

The system uses disposable lead paper test strips that are inexpensive to manufacture and replace. These test strips are consumed during each testing cycle, allowing the use of simple, cost-effective materials rather than requiring expensive reusable sensors or complex analytical instruments, thus resolving the contradiction between manufacturing ease and measurement precision.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

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 early detection of unsafe lead levels in water, minimizing exposure risks by alerting users through color-coded indicators and ensuring timely maintenance of lead detection devices, thus reducing health hazards associated with lead contamination.

Implementation Method 1

a lead detection device that tests water for lead content using lead paper test strips

Methodology Applied

Scientific EffectChemical reaction: Chemical Bonding

Data Source

PatentUS20230314397A1Faucet with lead detect device

Publication Date: 2023.10.05 AS AMERICA INC

AI summary

Provided are faucet assemblies with lead detection and reporting capabilities. In some embodiments, a faucet assembly can include a faucet body configured to be mounted above a deck; and a lead detection assembly comprising a controller, a user input device configured to receive a user input, a lead detection device, and an indicator, wherein the controller, the user input device, the lead detection device, and the indicator are in electrical communication, the user input device is configured to communicate the user input to the controller, and, based on the user input, the controller is configured to instruct the lead detection device to obtain a water sample and determine a lead content of the water sample, the controller is configured to transmit the lead content to the indicator, and indicator is configured to indicate the lead content of the water sample.