Pipe Insulation Assembly With Protected Lap Closure and Cut Markings

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Solution Overview

Problem

Existing pipe insulation assemblies often suffer damage to the lip portion during shipping and warehousing, which can compromise the integrity of the insulation and installation process.

Innovation Solution

A pipe insulation assembly design featuring a longitudinally extending slit with a releasable tape or butt sealant strip, and an adhesive system that includes a self-sealing lap closure with dimensional markings, allowing for temporary securement during transit and easy installation with visible measurements for precise cutting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the lip portion is left exposed without protective covering, then the adhesive is accessible for bonding, but the lip portion becomes damaged during shipping and warehousing

Engineering Contradiction:
Improveintegrity of lip portionVSAvoidaccessibility of adhesive
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

A releasable tape is applied to the lip portion before shipping and warehousing to protect it from damage. The tape is removed just before installation, exposing the adhesive for bonding. This preliminary protective action prevents damage during transit while maintaining ease of operation at installation time.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The releasable tape acts as an intermediary protective layer between the lip portion and external damaging forces during shipping. It temporarily covers the adhesive and lip portion, preventing damage, then is removed to allow the adhesive to perform its bonding function.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Manufacturing precision

If dimensional markings are placed on the tape, then precise cutting is enabled, but the tape structure becomes more complex

Engineering Contradiction:
Improvecutting precisionVSAvoidtape structure
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

Dimensional markings are integrated directly into the tape structure, combining the protective function of the tape with the measurement function. This allows precise cutting without requiring separate measurement tools or additional structural elements, thus not increasing device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The tape serves multiple functions: protecting the lip portion during shipping, providing dimensional markings for precise cutting, and being easily removable for installation. This multi-functionality eliminates the need for separate protective coverings and measurement tools.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 design minimizes damage to the lip portion during shipping and warehousing, facilitates easy installation by providing visible measurements for precise cutting, and ensures a secure bond to the pipe, enhancing the reliability and efficiency of the insulation process.

Implementation Method 1

an adhesive and an internal release liner are located on the extended lip portion

Methodology Applied
Scientific EffectAdhesive: Adhesive

Implementation Method 2

The releasable tape is at least partially disposed over the lip portion. The releasable tape has a releasable adhesive attached to an underside of the tape

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3374682B1Pipe insulation assembly
Publication Date: 2024.01.03 OWENS CORNING INTELLECTUAL CAPITAL LLC
  • EP3374682B1 patent drawingFigure 1
  • EP3374682B1 patent drawingFigure 2
  • EP3374682B1 patent drawingFigure 3

AI summary

Pipe insulation assemblies (10) comprising tubular insulation (100) having a longitudinal slit (400), a jacket (110), releasable tape (120), butt sealant strips (600), and/or closing adhesives are disclosed. The jacket (110) overlays the outer surface of the tubular insulation (100). The jacket (110) has an extended lip portion (200) extending beyond the longitudinal slit (400). An adhesive (420) and an internal release liner (130) are located on the extended lip portion (200).