Teat Cup Liner Vacuum Detection Membrane

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Solution Overview

Problem

Current milking systems face challenges in detecting excessive head vacuum during milking, which can lead to painful teat changes in animals due to the complexity and cost of existing monitoring systems.

Innovation Solution

A teat rubber with an integrated device that undergoes a visible or tactile structural change when the head vacuum exceeds a limit value, allowing operators to detect and address excessive vacuum during milking, featuring a membrane or bellows element that bulges or shortens to indicate correct or excessive vacuum settings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If sensors and control technology are used to detect head vacuum, then measurement precision is improved, but device complexity increases

Engineering Contradiction:
Improvehead vacuum detectionVSAvoidcontrol and device technology
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent uses a membrane element made of flexible material that deforms in response to head vacuum pressure changes. This membrane directly translates pressure variations into visible shape changes, eliminating the need for electronic sensors and control systems while maintaining detection capability

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The invention replaces the electronic sensor-based mechanical system with a purely mechanical indication system. The membrane's physical deformation serves as the detection mechanism, substituting complex electronic measurement with simple mechanical response that can be observed directly

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Device complexity

If a membrane element is used to indicate head vacuum, then device complexity is reduced, but measurement precision may be compromised

Engineering Contradiction:
Improvedetection systemVSAvoidhead vacuum detection
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The membrane element incorporates visual indicators such as color changes or pattern variations that become apparent when the membrane deforms. This allows operators to easily distinguish between normal and excessive vacuum conditions without requiring precise electronic measurement

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The membrane's physical parameters (shape, position, visual characteristics) change in response to head vacuum pressure. These parameter changes are designed to be clearly distinguishable at the threshold of excessive vacuum, providing sufficient precision for the application without requiring electronic sensors

Inventive Principle:
Principle #35Parameter changes

3Object-affected harmful factors

If teat rubber size is increased to reduce head vacuum, then object-affected harmful factors are reduced, but productivity decreases

Engineering Contradiction:
Improveteat damageVSAvoidmilk flow
Core Design Contradiction:
Object-affected harmful factorsVSProductivity

Solution Approach 1:

The membrane element provides real-time visual feedback about head vacuum levels during milking. This allows operators to immediately detect when vacuum becomes excessive and adjust parameters accordingly, preventing teat damage while maintaining optimal milk flow through timely intervention rather than permanent size changes

Inventive Principle:
Principle #23Feedback

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

Enables simple and effective detection of excessive head vacuum, allowing operators to take corrective measures during milking, thereby preventing teat damage and improving animal comfort.

Implementation Method 1

when a limit value of the head vacuum is exceeded, it undergoes a structural change that can be detected from the outside

Methodology Applied
Scientific EffectPressure-induced structural change: Deformation

Implementation Method 2

a bellows element that bulges or shortens to indicate correct or excessive vacuum settings

Methodology Applied
Scientific EffectPressure-induced compression: Compression

Data Source

PatentEP3104687B1Teat cup liner
Publication Date: 2019.05.29 INRAD TECH BV
  • EP3104687B1 patent drawingFigure 1
  • EP3104687B1 patent drawingFigure 2~3
  • EP3104687B1 patent drawingFigure 4~5

AI summary

The invention relates to a teat cup liner comprising a teat cup liner head (2) provided with a device (32) which, during the milking process, undergoes a structural alteration when a head vacuum is exceeded. This alteration can be externally detected.