Press Fitting Seal Ring With Visual Press Confirmation

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Solution Overview

Problem

Traditional press fittings in fluid flow systems often fail to provide a clear indication of proper sealing, leading to potential leaks and inefficiencies due to improper installation, which can be time-consuming and costly to rectify.

Innovation Solution

A fitting with a main body component, a sealing ring, and a latching band that visually indicates proper sealing by expanding outside the fitting when compressed, ensuring a permanent seal through the radially inwardly extending latch engaging the pipe.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional press fittings are used without visual indicators, then the device complexity is reduced, but the reliability of proper sealing cannot be confirmed

Engineering Contradiction:
Improvesealing reliabilityVSAvoidfitting structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sealing ring incorporates a visual indicator that changes appearance (expands outward) when proper sealing is achieved, allowing operators to quickly confirm installation quality without additional testing equipment or complex verification procedures

Inventive Principle:
Principle #32Color changes

2Ease of operation

If visual indicators are added to press fittings, then the ease of operation is improved, but the device complexity increases

Engineering Contradiction:
Improveinstallation verification easeVSAvoidfitting structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The visual indicator on the sealing ring provides immediate feedback during installation, allowing operators to easily verify proper sealing by observing the indicator's expanded state, eliminating the need for complex verification tools or procedures

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The fitting itself provides the verification function through the visual indicator on the sealing ring, eliminating the need for separate testing equipment or additional verification steps by the operator

Inventive Principle:
Principle #25Self-service

3Reliability

If the sealing ring is made expandable for visual indication, then the reliability of sealing confirmation is improved, but the manufacturing precision requirements increase

Engineering Contradiction:
Improvesealing confirmation reliabilityVSAvoidsealing ring dimensional precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The sealing ring's physical state changes (expands outward) in response to compression forces during proper installation, transforming the invisible sealing action into a visible indicator without requiring ultra-precise manufacturing tolerances

Inventive Principle:
Principle #35Parameter changes

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

Provides a quick and reliable visual confirmation of proper sealing, reducing installation errors and potential leaks by ensuring a secure connection.

Implementation Method 1

a sealing ring and a latching band securely maintained, at least in part, against a portion of the interior wall of the main body component. The sealing ring is malleable and expandable when properly compressed so as to extend outside of the fitting around an inserted pipe

Methodology Applied
Scientific EffectElastic expansion: Elasticity

Implementation Method 2

pressure can be applied through the press tool to the outside of the fitting in order to compress the fitting around the pipe

Methodology Applied
Scientific EffectCompression deformation: Compression

Implementation Method 3

The sealing ring is malleable and expandable when properly compressed so as to extend outside of the fitting

Methodology Applied
Scientific EffectPlastic deformation: Plasticity

Implementation Method 4

A press fitting, which is also known as a friction fit or an interference fit, is a fastening of parts that takes place through friction after the parts are pushed or compressed together

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS12392433B2Press fitting device, components and method
Publication Date: 2025.08.19 QUICK FITTING HOLDING COMPANY LLC
  • US12392433B2 patent drawing
  • US12392433B2 patent drawing
  • US12392433B2 patent drawing

AI summary

A press fitting device, components and method provide one or more indicators to provide a visual indication that the fitting has been properly pressed around a tube and that the correct amount of pressure has been provided to create a permanent seal. In embodiments, a sealing ring and a latching band are retained within a main body component of the fitting and the latching band can be formed with a radially inwardly extending latch that extends through an opening in the sealing ring.