Overmolded Fitting Connection With Color-Coded Leak-Safe Coupling
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Solution Overview
Problem
Existing water line connections with overmold fittings face challenges in providing a secure and flexible connection, especially when the supply line needs to be cut to length, as the traditional ferrule ring size does not match the altered diameter, leading to leakage issues and difficulties in installation.
Innovation Solution
A supply line with an overmolded fitting that includes a visual indicator, such as color coding, and a dual overmolded end and retention ring configuration, allowing for secure coupling to a compression fitting while enabling the use of traditional ferrule rings, and providing a flexible and leak-proof connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an overmold fitting is used on a supply line with a smaller diameter than the fitting receptacle, then the supply line can be connected to the fitting, but the installer cannot cut the supply line to length and then make the connection because the diameter mismatch prevents proper ferrule ring engagement
Solution Approach 1:
An intermediary component (adapter ring or transition fitting) is introduced between the overmold fitting and the compression fitting receptacle. This adapter ring has an inner diameter that matches the smaller supply line diameter and an outer diameter that interfaces with the compression fitting, thereby mediating the diameter mismatch and enabling both cutting-to-length and connection operations
Solution Approach 2:
The connection system is segmented into distinct functional components: the overmold fitting remains attached to the supply line, while a separate adapter ring or transition component provides the interface with the compression fitting receptacle. This segmentation allows the supply line to be cut to length independently from the connection assembly process
2Reliability
If traditional ferrule rings or gaskets are used with overmold fittings, then secure connections can be achieved, but visual indicators for fluid characteristics such as temperature are not provided
Solution Approach 1:
The overmold fitting incorporates color-coded visual indicators (such as colored bands, rings, or molded-in color patterns) that convey fluid characteristics like temperature (e.g., red for hot, blue for cold). These color indicators are integrated into the fitting structure itself, maintaining connection security while providing immediate visual information to the installer
Solution Approach 2:
The functional components (ferrule ring, gasket, retention features) and the visual indication feature are merged into a single integrated overmold fitting assembly. The visual indicators are molded directly into the fitting structure, combining the sealing/retention function with the information communication function in one component
3Adaptability or versatility
If the supply line diameter is made smaller than the fitting diameter to allow for overmold fittings, then flexibility and modern material advantages are gained, but the installer faces difficulties in cutting and assembling the connection
Solution Approach 1:
An adapter ring or transition component serves as an intermediary that accepts the smaller diameter supply line with overmold fitting and interfaces it with the larger diameter compression fitting receptacle. This mediator enables the use of flexible PEX or other modern materials while maintaining ease of installation through standard cutting and assembly procedures
Solution Approach 2:
The adapter ring or transition component is designed with universal compatibility, featuring an inner diameter that accommodates various supply line sizes and an outer interface that fits standard compression fitting receptacles. This multi-functionality allows the same adapter to work with different supply line diameters and types, maintaining ease of operation across various installation scenarios
Data Source
AI summary
A overmold fitting is coupled to a fluid conduit. The overmold fitting may include a first portion and a spaced apart second portion proximate a first end of the fluid conduit. The first portion may be an end ring and the second portion may be a retention ring. The overmold fitting may include a visual indicator to provide an indication of the fluid to be used with the fluid conduit.