Grooved Pipe Coupling Hold-Open Clip for Faster Installation

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Solution Overview

Problem

Traditional grooved pipe couplings require complex in-situ assembly and lack efficient mechanisms to maintain housing segments in proper alignment during installation, leading to potential misalignment and gasket deformation, which increases installation time and labor costs.

Innovation Solution

The introduction of a hold open clip that maintains the coupling housing segments in a spaced apart configuration using a clip with a mounting portion and tabs, allowing for easier pipe insertion and preventing gasket deformation, along with a wedge mechanism that ensures proper alignment and sealing when tightened.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If housing segments are kept closed in preassembled state, then alignment and stability are improved, but pipe insertion becomes difficult

Engineering Contradiction:
Improvehousing segment alignmentVSAvoidpipe insertion ease
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The coupling housing is designed with a dynamic opening mechanism that allows the housing segments to be held in an open position during installation using a hold-open device, and then automatically closes when the pipe is inserted and secured. This dynamic state change resolves the contradiction by providing stability when needed (closed state for alignment) and ease of operation when needed (open state for pipe insertion).

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If housing segments are kept open for pipe insertion, then installation ease is improved, but misalignment and gasket deformation increase

Engineering Contradiction:
Improvepipe insertion easeVSAvoidhousing segment alignment
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

A hold-open device acts as an intermediary mechanism that temporarily maintains the housing segments in an open position during pipe insertion, preventing premature closure that would cause misalignment. The device includes a arm that engages with the housing segments to hold them open, allowing easy pipe insertion while preventing the segments from shifting or misaligning.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Strength

If traditional bolting methods are used, then connection strength is improved, but installation time and complexity increase

Engineering Contradiction:
Improveconnection strengthVSAvoidinstallation time
Core Design Contradiction:
StrengthVSLoss of time

Solution Approach 1:

The coupling components are preassembled at the factory with the gasket positioned and the housing segments prepared for connection. The hold-open device is pre-installed to maintain the open position during shipping and handling. This preliminary preparation eliminates the need for complex on-site assembly operations, reducing installation time while maintaining connection strength through pre-positioned bolting holes and alignment features.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11421804B2Quick installation coupling
Publication Date: 2022.08.23 AALBERTS INTEGRATED PIPING SYST AMERICAS INC
  • US11421804B2 patent drawing
  • US11421804B2 patent drawing
  • US11421804B2 patent drawing

AI summary

The present disclosure relates to an installation ready housing type pipe coupling for creating a sealed connection between coaxial groove ended pipes, a hold open clip for the coupling, and other modifications and improvements thereof. The coupling comprises a first and second housing segments creating a cavity, a gasket provided within the cavity, a first and second bolts and nuts connecting the hosing segments at opposite ends, and a hold open clip. The first nut is affixed to the first bolt. The second nut can be adjusted along the second bolt. The hold open clip helps to attach the two housing segments in the preassembled state while keeping the coupling open. The hold open clip may also indicate a proper installation of the coupling.