Pipe Coupler Gasket Retention and Sealing Mechanism
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Solution Overview
Problem
Existing pipe couplers face issues with improper gasket seating, uneven sealing pressure, difficulty in handling heavy pipes, and damage during uncoupling due to inadequate clamping mechanisms and gasket retention, leading to leakage and mechanical stress.
Innovation Solution
A semi-circular coupler design with gasket retaining elements and a clamping mechanism that allows one-handed operation, featuring adjustable bail rods and ergonomic handles to ensure proper gasket compression and retention, preventing leakage and mechanical damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a split gasket is used with retention only at the ends, then the coupler can be simpler in structure, but the gasket dragging and sticking causes uneven sealing pressure and potential leakage
Solution Approach 1:
The patent applies local quality by providing positive retention features (protrusions and recesses) at specific circumferential locations rather than uniform retention throughout. This localized retention at critical points prevents gasket dragging and sticking while maintaining sealing pressure uniformity, resolving the contradiction between structural simplicity and sealing reliability.
Solution Approach 2:
The patent implements preliminary action by pre-positioning the gasket within the coupler body using positive retention features before the coupling operation begins. This ensures the gasket is properly seated and prevents dragging during closure, maintaining even sealing pressure without requiring complex continuous retention mechanisms.
2Productivity
If heavy pipes are handled during coupling, then the coupling operation can be completed, but improper gasket seating occurs due to difficulty in positioning
Solution Approach 1:
The patent applies self-service by designing the coupler to automatically position and retain the gasket through its positive retention features (protrusions and recesses). The gasket is self-retained within the coupler body without requiring manual positioning, ensuring accurate seating even when heavy pipes are handled during the coupling operation.
3Ease of operation
If the coupler is designed for one-handed operation, then handling efficiency improves, but the clamping mechanism must be sufficiently simple to operate with one hand
Solution Approach 1:
The patent applies the taking out principle by extracting the adjustment function from a complex multi-component mechanism and implementing it through a simple bail rod length adjustment. This allows one-handed operation while maintaining sufficient clamping capability, resolving the contradiction between operational ease and mechanism simplicity.
4Ease of operation
If force is applied to open the coupler during uncoupling, then the coupler can be opened, but the gasket may be torn or damaged
Solution Approach 1:
The patent implements preliminary action by providing positive retention features that secure the gasket in place before uncoupling begins. This pre-positioning prevents the gasket from being torn or damaged during the uncoupling process, allowing force to be applied to open the coupler without compromising gasket integrity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a secure, leak-proof connection with controlled gasket compression, easy handling of heavy pipes, and reduced risk of mechanical damage during operation and uncoupling, enhancing user safety and efficiency.
Implementation Method 1
The gasket is configured so as to be deformable to a curvature having a radius marginally smaller than the radius of the cavity or channel
Implementation Method 2
the opposing ends of the gasket will also be positively brought and compressed together for forming a sealed joint
Implementation Method 3
Each semi-circular element has a generally C-shaped profile and is configured to have a radially inwardly facing circumferential cavity or channel for receiving and holding a corresponding portion of a gasket
Data Source
AI summary
A coupler for joining a pipe to another pipe, a tee, or other fitting, and more particularly, to a coupler which provides positive retention of the gasket about the circumference of the coupler sufficiently to precisely position and hold the gasket during placement about pipe ends and/or fittings to be coupled, and which provides controlled circumferential compression of the gasket during coupling, for positive sealing when the coupler is closed, while allowing one handed handling and operation during placement and coupling, such that the other hand can be used for supporting a pipe to be coupled, and which is operable for releasing and breaking loose the coupler and associated gasket from a pipe during uncoupling.