Portable Extraction Load Testing Device for Fastener Integrity
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Solution Overview
Problem
Current methods for determining the strength of fasteners and sealants are subjective and imprecise, lacking objective and repeatable measurements, which is particularly evident in assessing roof damage and maintenance needs.
Innovation Solution
A portable device and method for in situ testing of extraction load, allowing for the measurement and comparison of fastener and sealant strength against established standards, using a device with adjustable legs and an extraction load generator, and a database for storing and analyzing data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If subjective visual inspection methods are used to assess fastener and sealant strength, then the assessment process is simple and quick, but the measurement precision and objectivity are poor
Solution Approach 1:
The patent replaces subjective visual inspection with an objective mechanical extraction testing system. The device uses a controlled mechanical extraction force applied through a testing mechanism to quantitatively measure fastener and sealant strength, transforming qualitative visual assessment into quantitative mechanical measurement.
Solution Approach 2:
The patent introduces a standardized testing device as an intermediary between the inspector and the fastener/sealant system. This intermediary device provides controlled conditions for extraction testing, including force application mechanisms and measurement systems, enabling objective and repeatable strength assessment.
2Reliability
If in situ extraction load testing is implemented, then objective and repeatable measurements are achieved, but the device portability and ease of operation are reduced
Solution Approach 1:
The patent divides the extraction testing system into modular components, including a base unit, attachment mechanisms, and measurement systems. This segmentation allows the device to be configured for different testing scenarios while maintaining portability and ease of operation, with each component serving a specific function in the overall testing process.
3Measurement precision
If standardized extraction load testing procedures are used, then measurement precision and objectivity are improved, but the time required for testing increases
Solution Approach 1:
The patent incorporates pre-configured testing setups and pre-calibrated measurement systems that prepare all necessary components before actual testing begins. Standardized attachment mechanisms and pre-programmed measurement protocols enable rapid execution of extraction tests while maintaining precision and objectivity.
Data Source
AI summary
A method and device for objectively determining extraction loads for, or verifying capability to withstand loads for fasteners, sealants, or overlying materials attached to an underlying material. The method provides for a repeatable and objective test for comparing extraction load and load bearing capability of fasteners, sealants, or overlying materials attached to an underlying material to standards for the same. The portable device provides for testing various types of fasteners, sealants, or overlying materials attached to an underlying material in a repeatable and easily usable manner. The device comprises a means of generating, applying, and measuring load forces, and providing the data therefrom.