Non-lethal Intruder Deterrent Spray Device

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Solution Overview

Problem

Current security systems lack a non-lethal means to quickly and safely incapacitate intruders in schools, government offices, residences, and businesses, posing a risk to both defenders and bystanders, as they often rely on lethal force or ineffective deterrents, with existing solutions failing to provide immediate and safe protection against armed or dangerous individuals.

Innovation Solution

A non-lethal intruder deterrent and suppression device equipped with a pre-filled tank of a proprietary formula, a pivoting and tilting nozzle system, high-intensity light, and video camera capabilities, which can be remotely activated to temporarily incapacitate intruders, providing a stand-off solution that avoids face-to-face confrontation and minimizes risk to all parties involved.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If lethal weapons are used to stop intruders, then the effectiveness of stopping the intruder is improved, but the risk of death to the suspect and innocent bystanders increases

Engineering Contradiction:

Improveeffectiveness of stopping intruderVSAvoidrisk of death to suspect and bystanders

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent employs an intermediary substance (chemical agent) delivered through a spray mechanism to incapacitate intruders. This intermediary approach allows law enforcement to stop threats without directly using lethal force, thereby reducing the risk of death to both suspects and bystanders while maintaining effectiveness in neutralizing the threat.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces mechanical/physical lethal force (firearms) with a chemical-based incapacitation system. The spray device delivers a chemical agent that temporarily disables intruders through physiological effects rather than physical trauma, substituting a less harmful mechanism for the traditionally used lethal mechanical system.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If law enforcement response time is increased to ensure safe arrival, then the safety of responders is improved, but the time available to protect victims decreases

Engineering Contradiction:

Improvesafety of law enforcement respondersVSAvoidtime available to protect victims

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The spray incapacitation device enables preliminary action by law enforcement officers who can immediately deploy it upon encountering a threat, before full police support arrives. This preliminary incapacitation of the intruder buys critical time, allowing the rest of the response team to arrive safely while the threat is already neutralized.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The device allows individual officers to skip the waiting period for full team deployment by independently capable of neutralizing threats. The rapid-acting spray formulation works quickly enough that officers don't need to wait for backup, effectively rushing through the response timeline with immediate action.

Inventive Principle:

Principle #21Skipping (Rushing through)

3Object-affected harmful factors

If non-lethal spray is used to incapacitate intruders, then the safety of suspect and bystanders is improved, but the duration of incapacitation must be sufficient for law enforcement response

Engineering Contradiction:

Improvesafety of suspect and bystandersVSAvoidduration of incapacitation

Core Design Contradiction:

Object-affected harmful factorsVSDuration of action of moving object

Solution Approach 1:

The patent achieves the required duration of incapacitation by carefully controlling parameters of the chemical formulation, including concentration, delivery method, and active ingredient selection. These parameter adjustments ensure the spray produces effects lasting sufficiently long (typically 15-30 minutes) to cover law enforcement response times while maintaining non-lethal safety profiles.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The incapacitating spray utilizes composite chemical formulations combining multiple active ingredients or additives that work synergistically to extend the duration of incapacitation. This composite approach allows the formulation to maintain prolonged effects without increasing individual ingredient concentrations to lethal levels.

Inventive Principle:

Principle #40Composite 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 device effectively renders intruders temporarily incapacitated for a sufficient duration, allowing law enforcement to respond safely, without the use of lethal weapons, thereby protecting both the defender and bystanders from harm.

Implementation Method 1

high-intensity light

Methodology Applied

Scientific EffectLight emission: Light

Implementation Method 2

pneumatically propelled

Methodology Applied

Scientific EffectCompressed gas propulsion: Pressure Gradient

Data Source

PatentUS11308782B1Non-lethal intruder deterrent and suppression device capable of temporarily incapacitating unwanted intruders

Publication Date: 2022.04.19 STEVENS CRAIG C

AI summary

A non-lethal intruder deterrent and suppression device capable of temporary incapacitation is disclosed. The non-lethal intruder deterrent and suppression device capable of temporary incapacitation includes a video camera with audio recording capabilities, a light ring, and a spray nozzle to spray a formula as means for deterring and/or temporarily incapacitating an intruder, an active shooter, a terrorist, a thief, and/or an assailant.