Polymeric Utility Conduit Mechanical Spline Connector
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Solution Overview
Problem
Conventional polymeric conduit connection techniques for buried utility cables require chemical bonding agents and solvents, leading to delays in connection time and potential corrosion issues.
Innovation Solution
A mechanical spline connector system is used to connect adjacent lengths of polymeric conduit, eliminating the need for chemical curing and allowing for easy disassembly, featuring male and female ends with sealing channels and spline grooves for a fluid-tight seal and secure alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If chemical bonding agents and solvents are used to connect polymeric conduit, then a secure connection is achieved, but connection time increases due to curing delays
Solution Approach 1:
The patent replaces chemical bonding mechanisms with a mechanical spline connector system. The spline insert fits into aligned grooves on the conduit ends, creating a mechanical interlock that provides secure connection without requiring chemical curing time. This mechanical substitution directly resolves the contradiction by eliminating the time-delaying chemical process while maintaining connection strength.
Solution Approach 2:
The spline insert acts as an intermediary component that mediates the connection between two conduit sections. Rather than relying on chemical bonding between the conduit surfaces, the spline serves as a third element that mechanically joins the conduits through its engagement with the grooves, thereby achieving secure connection without chemical curing delays.
2Strength
If chemical bonding agents are used to connect polymeric conduit, then a secure connection is achieved, but corrosion issues may arise
Solution Approach 1:
The patent eliminates chemical bonding agents entirely by substituting them with a mechanical spline connector system. This replacement removes the source of potential corrosion from chemical solvents and bonding agents, while the mechanical interlock through splines and grooves maintains secure connection strength without introducing harmful chemical factors.
Solution Approach 2:
The spline insert is a simple, replaceable mechanical component that can be easily removed or replaced if needed. This disposable or replaceable nature eliminates the long-term corrosion issues associated with chemical bonding agents, as the mechanical component can be maintained or replaced without chemical degradation concerns.
3Strength
If chemical bonding agents are used to connect polymeric conduit, then connection is achieved, but disassembly becomes difficult
Solution Approach 1:
The patent replaces permanent chemical bonding with a reversible mechanical connection system. The spline insert engages with grooves that can be easily disengaged by removing the spline, allowing for simple disassembly and reassembly. This mechanical substitution maintains connection strength during use while enabling easy repair and reconfiguration when needed.
Solution Approach 2:
The connection system transitions from a static chemical bond to a dynamic mechanical connection that can easily transition between connected and disconnected states. The spline can be inserted to create a secure connection during operation, then easily removed when disassembly is needed, providing dynamic adaptability that chemical bonding cannot offer.
Data Source
AI summary
A utility conduit and related methods of assembling lengths of utility conduit with a mechanical spline connector. The utility conduit includes opposed male and female ends, wherein the male end is slidably insertable into the female end of adjacent conduits. The female end includes one or more circumferential sealing channels into which a seal member is positionable and an internal spline groove that is circumferentially defined inside the conduit. The female end includes a wall bore through a conduit wall that intersects with the internal spline groove. The male end includes an exterior spline groove on an exterior of the conduit. A spline can be inserted through the wall bore and into a space cooperatively defined by the internal spline groove and the external spline groove. The spline is inserted such that the spline occupies the space cooperatively defined by the internal spline groove and the external spline groove.