Portable Pull Test Tool for Wire Connector Verification

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing pull testing tools are inadequate for verifying the secure insertion and connection of wires in electrical connectors, especially in field conditions, as they often rely on friction or improper seating, and are not suitable for assembled components or harsh environments.

Innovation Solution

A portable pull testing inspection tool with a connector and handle that applies force to a wire or component, featuring an indicator to measure and provide feedback on the applied force, allowing for secure testing without damaging the component, and can be used in confined spaces or harsh conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing pull testing tools are used, then testing can be performed, but the testing is unreliable and may give false positives due to friction or improper seating

Engineering Contradiction:
Improvetesting reliabilityVSAvoidforce measurement accuracy
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The patent introduces a portable inspection tool as an intermediary device between the tester and the wire connector. This tool includes a connector that properly engages with the wire and component, a handle for applying controlled force, and an indicator mechanism that provides accurate force measurement. The intermediary tool eliminates the need for direct hand-pulling, ensuring reliable and precise pull testing.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If manual pull testing is performed, then simplicity is maintained, but the testing is destructive and requires significant training

Engineering Contradiction:
Improvetesting simplicityVSAvoidtesting consistency
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The portable inspection tool is designed to be self-guiding and self-measuring. The indicator mechanism automatically measures and displays the force applied during pull testing, eliminating the need for trained operators to estimate or interpret results. The tool performs the measurement function automatically, making the testing process reliable yet simple to operate.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If friction-based connection is used, then ease of insertion is improved, but the connection security cannot be verified

Engineering Contradiction:
Improveinsertion easeVSAvoidconnection security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The portable inspection tool incorporates an indicator mechanism that provides immediate feedback during pull testing. The indicator displays whether the applied force has reached the threshold required to verify secure connection. This feedback mechanism allows operators to confirm connection security objectively, distinguishing between proper secure connections and those relying merely on friction.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12181445B2Pull testing inspection tools for wires or other components under test
Publication Date: 2024.12.31 RAYTHEON CO
  • US12181445B2 patent drawing
  • US12181445B2 patent drawing
  • US12181445B2 patent drawing

AI summary

An apparatus includes a portable device, which includes a connector configured to contact or grasp a portion of a component and to apply a force on the component during a pull test of the component. The portable device also includes a handle configured to be pulled to apply the force on the component during the pull test of the component. The portable device further includes an indicator configured to at least one of: (i) identify the force being applied to the component during the pull test and (ii) identify when a specified amount of force has been applied to the component during the pull test.