Electromagnetic Barrier Sheet for Doorway Security

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Solution Overview

Problem

Existing security measures for protecting areas like schools and institutions are complex and labor-intensive to install, and there is a need for a simpler and more efficient mechanism to secure windows and doorways against intruders.

Innovation Solution

A flexible barrier sheet with magnetic elements that can be electromagnetically attached to a frame, allowing for easy deployment and secure attachment to windows or doorways, using a housing to store the sheet in a collapsed configuration and energizing electromagnets for magnetic attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a ballistic shade system with sidetracks is used to secure windows and doorways, then protection against intruders is provided, but the system becomes complex and labor-intensive to install

Engineering Contradiction:
Improveprotection effectivenessVSAvoidinstallation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces the complex mechanical sidetrack system with electromagnetic attachment. Electromagnets mounted on the frame magnetically attach the flexible barrier sheet without requiring mechanical channels or tracks, dramatically simplifying installation while maintaining security effectiveness

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

Solution Approach 2:

The patent uses a flexible barrier sheet instead of rigid ballistic panels that would require complex mechanical mounting. The flexible sheet can be easily positioned and attached to the frame using electromagnets, reducing installation complexity while providing adequate protection

Inventive Principle:
Principle #30Flexible shells and thin films

2Reliability

If a complex security system with multiple components is deployed, then security coverage is improved, but the time required for deployment and installation increases

Engineering Contradiction:
Improvesecurity coverageVSAvoiddeployment time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system is segmented into independent electromagnet units distributed along the frame, each capable of independently holding the barrier sheet. This modular approach allows for rapid installation and deployment compared to integrated complex mechanical systems

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Electromagnetic attachment replaces time-consuming mechanical assembly operations. The barrier sheet can be quickly positioned and attached by energizing electromagnets, significantly reducing deployment time while maintaining comprehensive security coverage

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

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 solution provides a straightforward, efficient, and easily installable security mechanism that can be remotely controlled, effectively blocking access points and enhancing safety without the complexity of existing systems.

Implementation Method 1

sheet magnetic elements attached to the flexible barrier sheet and distributed along each of the first longitudinal edge and the second longitudinal edge. The sheet magnetic elements are structured to magnetically couple to frame magnetic elements mounted to the frame

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

an electrical switch structured to energize at least one of the sheet magnetic elements or the frame magnetic elements to magnetically attach the flexible barrier sheet to the frame

Methodology Applied
Scientific EffectElectromagnet: Electromagnet

Data Source

PatentUS11220859B2Electromagnetically operated protection mechanism, system, and method
Publication Date: 2022.01.11 HENDRIX JOHN
  • US11220859B2 patent drawing
  • US11220859B2 patent drawing
  • US11220859B2 patent drawing

AI summary

A room protection mechanism for protecting access through a window or doorway includes a flexible barrier sheet adjustable between a collapsed, storage configuration, and a deployed configuration. The protection mechanism includes a housing storing the flexible barrier sheet in the collapsed configuration. Sheet magnetic elements are attached to the flexible barrier sheet, and structured to magnetically couple to frame magnetic elements mounted to a frame of the doorway or window. The protection mechanism can be deployed, such as in a school or other institutional setting, to position the flexible barrier sheet to block access through the doorway or window. The flexible barrier sheet may be formed of or include a ballistic material.