PVC Pipe Color Coding for Fast Fitting Size Identification
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Solution Overview
Problem
Current PVC pipe and coupling systems lack effective visual methods for quickly determining the size and compatibility of fittings, requiring labor-intensive measurement and testing to ensure proper fitting selection and installation.
Innovation Solution
A color coding system using series of colors, shapes, swirls, and patterns applied to PVC pipes and couplings through etching, painting, or other methods, ensuring non-removable marks for easy identification of pipe sizes and corresponding fittings, facilitating visual verification of proper sizing without the need for measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If PVC pipes and couplings are not marked with size information, then the appearance remains simple and clean, but users cannot quickly determine the size and compatibility of fittings without measurement tools
Solution Approach 1:
The patent applies different colors to PVC pipes and couplings based on their size classifications. Small diameter pipes (up to 2 inches) are colored blue, medium diameter pipes (2-4 inches) are green, and large diameter pipes (over 4 inches) are orange. Corresponding couplings are colored to match their compatible pipe size, enabling users to quickly identify size compatibility through color alone without measurement tools
Solution Approach 2:
The patent changes the visual parameter of color to encode size information. By assigning specific colors to different size ranges and applying the same color scheme to both pipes and couplings, the system transforms invisible size data into visible color codes that can be instantly recognized and compared
2Reliability
If fittings are measured and compared to pipe measurements to ensure proper fit, then accurate matching is achieved, but the process becomes labor-intensive and time-consuming
Solution Approach 1:
The patent performs the sizing classification action in advance during manufacturing by applying color codes to pipes and couplings according to their size categories. This preliminary color-coding action eliminates the need for on-site measurement and comparison, allowing users to immediately identify compatible fittings by color matching without time-consuming measurement processes
Solution Approach 2:
The patent creates a visual copy of size information through color codes that represent the actual physical dimensions. Instead of directly measuring and comparing physical dimensions, users compare the color codes (visual representations) of pipes and couplings, which serves as a simplified copy of the size data that can be instantly recognized without measurement tools
3Ease of operation
If color coding is applied to packaging only, then shipping and storage organization is improved, but users cannot identify fitting sizes once items are removed from packaging
Solution Approach 1:
The patent merges the identification function from packaging into the product itself by applying color codes directly to the pipes and couplings during manufacturing. This integration ensures that the visual identification system travels with the product throughout its entire lifecycle, from storage through installation, eliminating the disconnect between packaged and unpackaged identification
4Reliability
If no visual marking system is used, then the manufacturing process remains simple, but inspectors must measure each fitting to validate proper installation
Solution Approach 1:
The patent replaces the mechanical measurement system used by inspectors with a visual color-coding system. Instead of physically measuring fittings to validate installation, inspectors can quickly verify compatibility by visually comparing the color codes of connected pipes and couplings, dramatically increasing inspection speed while maintaining accuracy through the standardized color system
Data Source
AI summary
A system of visual and non-visual marks for pipes and couplings which allows users to group the pipes and couplings by type, size, end configurations and composition with a series of symbols, including colors, shapes, swirls, patterns. The symbols are applied to the pipes and couplings by printing, etching, painting, applying stickers, and or molding. The non-visual mark utilize the magnetic and radio reflective nature of the marks to allow remote identification of the plumbing pipes and couplings after being buried.