Multi-Layer Protective Envelope for Cleanroom and Quarantine Isolation

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Solution Overview

Problem

Current protective devices for production engineering units are inadequate for ensuring cleanroom and cleanliness suitability standards, leading to unsatisfactory operation under cleanroom conditions and insufficient quarantine measures during pandemics.

Innovation Solution

A protective envelope with at least two layers, including a flow-permeable first layer and an impermeable second layer, separated by a spacer layer, which creates a controlled environment for cleanroom operations and quarantine regions, ensuring separation from external environments and maintaining cleanliness standards.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional protective covers are used to isolate production engineering units from cleanroom environments, then separation from unclean units is achieved, but cleanroom and cleanliness suitability standards are not satisfied

Engineering Contradiction:

Improvecleanliness suitabilityVSAvoidprotective envelope structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The protective envelope is divided into multiple functional layers: an inner layer in contact with the production engineering unit, an outer layer facing the cleanroom environment, and intermediate spacer layers. Each layer serves specific cleanliness and protective functions, allowing the system to meet stringent cleanroom standards while maintaining manageable complexity through modular design.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The protective envelope employs composite material construction with different layers made from materials having distinct properties optimized for their specific functions. The inner layer uses materials resistant to contaminants from production units, while the outer layer uses materials compatible with cleanroom environments, creating a composite structure that satisfies both cleanliness requirements and structural needs.

Inventive Principle:

Principle #40Composite materials

2Productivity

If protective covers are placed over production engineering units, then isolation from cleanroom environment is achieved, but rapid deployment capability is limited

Engineering Contradiction:

Improvedeployment speedVSAvoidcleanliness maintenance

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The protective envelope utilizes flexible shell structures that can be rapidly assembled and disassembled while maintaining their protective function. The thin-film construction allows for quick deployment without compromising the cleanliness barrier, enabling fast setup of protected zones for production engineering units while preserving cleanroom standards.

Inventive Principle:

Principle #30Flexible shells and thin films

3Reliability

If single-layer protective covers are used, then simple structure is achieved, but insufficient protection against contamination is provided

Engineering Contradiction:

Improvecontamination protectionVSAvoidlayer structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

4Reliability

If protective envelope completely seals room region, then virus-free and cross-contamination free regions are created, but air flow and ventilation become problematic

Engineering Contradiction:

Improvequarantine effectivenessVSAvoidair flow maintenance

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The protective envelope incorporates porous or permeable materials in specific layers that allow controlled air flow while maintaining the barrier function. This enables ventilation and pressure equalization within the sealed quarantine zone, reducing energy requirements for air circulation while preserving the virus-free and cross-contamination free environment necessary for effective quarantine.

Inventive Principle:

Principle #31Porous materials

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 protective envelope effectively separates production engineering units from cleanroom environments, maintaining cleanliness standards and allowing for rapid deployment, while also creating virus-free and cross-contamination free regions for quarantine purposes.

Implementation Method 1

with at least the first layer being made from a material which is permeable to flows

Methodology Applied

Scientific EffectPermeation: Permeation

Implementation Method 2

a second layer, which is impermeable to flows

Methodology Applied

Scientific EffectPhysical barrier: Physical Containment

Data Source

PatentUS12320546B2Apparatus having a protective envelope, use thereof, and method for operating a room region

Publication Date: 2025.06.03 FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV

AI summary

The invention is an apparatus having a protective envelope which is designed and constructed to envelope at least one room region, such that the protective envelope is able to separate the at least one room region from an environment immediately surrounding the protective envelope, and use thereof. Methods for operating a production engineering unit under cleanroom conditions and for creating and operating a virus-free and cross-contamination free room region surrounded by a protective envelope for accommodating persons and/or objects subject to quarantine. The invention has a protective envelope with at least two layers separated by a spacer layer, that is flow-permeable.