Dual Position Locks for Utility Meter Enclosure Tamper-Proofing

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Solution Overview

Problem

Current utility meter enclosure lock designs risk inadvertently locking the front cover to the base during production, leading to potential tampering issues and increased costs associated with welding, which can compromise quality and environmental sustainability.

Innovation Solution

A utility meter enclosure featuring dual position locks that temporarily secure the front cover to the base during manufacturing and assembly, allowing for adjustments, and permanently fix it afterward, preventing unauthorized access without breaking the cover or base.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If welding is used to secure the front cover to the base, then the enclosure is permanently fixed and cannot be tampered with, but costs and overhead increase and quality may be reduced

Engineering Contradiction:

Improvetamper-proofingVSAvoidcost and overhead

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The locking mechanism is segmented into multiple lock positions (first locking position and second locking position) that provide different levels of security. The first position allows temporary securing during assembly, while the second position provides permanent tamper-proofing, eliminating the need for welding.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The lock's position parameter is changed to provide different locking states. By moving the lock between the first locking position (temporary secure) and second locking position (permanent fix), the system achieves both assembly flexibility and final tamper-proofing without welding.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If a locking mechanism is used to prevent unauthorized access, then security is improved, but the risk of inadvertent locking during production increases

Engineering Contradiction:

Improveunauthorized access preventionVSAvoidadjustment during manufacturing

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The locking mechanism is designed to be dynamic with multiple positions. During manufacturing, the lock can be positioned in the first locking position for temporary securing and adjustments. After assembly is complete, the lock is moved to the second locking position for permanent tamper-proofing, providing both flexibility and security throughout the product lifecycle.

Inventive Principle:

Principle #15Dynamics

3Reliability

If the front cover is permanently fixed to the base, then tamper-proofing is achieved, but the ability to make adjustments during manufacturing is lost

Engineering Contradiction:

Improvetamper-proofingVSAvoidadjustment capability

Core Design Contradiction:

ReliabilityVSEase of repair

Solution Approach 1:

The lock is designed to be in a preliminary state (first locking position) during manufacturing that allows for adjustments and assembly modifications. Once assembly is complete, the lock is then moved to the final state (second locking position) that provides permanent tamper-proofing, ensuring both adjustment capability and final security.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS11840867B2Utility meter enclosure with dual position locks

Publication Date: 2023.12.12 LANDIS GYR TECH INC

AI summary

A utility meter assembly having a base that is secured to a front cover. The assembly includes a dual locking system having a first locking position and a second locking position. In the first locking position, the front cover is removably secured with the base. In the second locking position, the front cover is permanently secured with the base to prevent separation of the two components unless one or both components are destroyed.