Pipe Fitting Visual Indicator for Set Screw Installation
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Solution Overview
Problem
Current pipe fitting systems require time-consuming quality assurance reviews to ensure proper tightening of set screws, which are prone to human error, to achieve a reliable seal and prevent pipe separation.
Innovation Solution
A pipe fitting with a housing, fastener, and dual indicators that provide a visual indication of proper installation, allowing for easy verification of secure pipe connection without the need for torque or depth measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If quality assurance reviews are conducted by measuring set screw depth or torque, then installation reliability is improved, but installation time increases and human error remains
Solution Approach 1:
The system uses self-indicating features where the set screw itself displays its installation status through color-coded sections that become visible or hidden based on tightening depth, eliminating the need for external measurement tools and operators
Solution Approach 2:
The set screw incorporates color-coded sections (e.g., colored band or tip) that provide visual feedback on tightening status, allowing operators to instantly verify proper installation without measurement devices
2Reliability
If quality assurance reviews are conducted by measuring set screw depth or torque, then installation reliability is improved, but human error increases due to complexity of measurement
Solution Approach 1:
The set screw automatically indicates its own installation status through visual features, eliminating the need for operators to perform complex measurement tasks that are prone to error
Solution Approach 2:
Color-coded visual indicators on the set screw provide unambiguous feedback on proper tightening, removing the complexity of interpretation associated with torque wrench readings or depth measurements
3Loss of information
If dual indicators are added to the fastener, then visual confirmation of proper installation is improved, but device complexity increases
Solution Approach 1:
The indicators utilize simple color-coded visual features integrated into the fastener structure, providing comprehensive installation status information without adding complex mechanical or electronic systems
Solution Approach 2:
The dual indicators (first and second indicators) are integrated directly into the fastener body as unified visual features rather than separate components, providing multiple status indicators while maintaining a single fastener unit
Data Source
AI summary
An indicator assembly includes a fastener defining a first end, a second end opposite the first end, and an axis extending from the first end to the second end; a first indicator positioned radially outwardly of the fastener relative to the axis of the fastener; and a second indicator positioned radially outwardly of the fastener relative to the axis of the fastener, wherein the second indicator is axially in between the first indicator and the second end of the fastener upon the fastener being oriented in a first position, and wherein the second indicator is radially inwardly or radially outwardly of the first indicator upon the fastener being oriented in a second position.