Lubric Gel Personal Defense Composition and Pressurized Delivery

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Solution Overview

Problem

Existing personal defense solutions like pepper spray and guns are either inaccessible or heavily regulated, and they are only effective in close proximity, limiting the time for individuals to escape from assailants.

Innovation Solution

A biodegradable, non-toxic, and non-explosive lubric gel composition with a pressurized delivery system that increases surface lubricity, can be applied preemptively, and is installed in walls and ceilings for wider coverage, using a composition of glycerine, thickening agents, detergents, surfactants, and water, along with a bag-on-valve spray canister and remote trigger system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If pepper spray or guns are used for personal defense, then protection capability is improved, but accessibility and usability are worsened due to regulations, training requirements, and close-proximity limitations

Engineering Contradiction:

Improveprotection capabilityVSAvoidaccessibility and usability

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The invention changes the physical state of the defensive composition from aerosol to gel form, and delivers it through a pressurized system that can be installed remotely (in walls or ceilings), transforming it from a handheld close-proximity device to a fixed installation that operates at a distance, thereby improving both accessibility and effectiveness

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The system is designed as a fixed installation that automatically dispenses the defensive gel when activated, eliminating the need for the user to physically carry or aim a device, making it as easy to use as pulling a fire alarm while maintaining protection capability

Inventive Principle:

Principle #25Self-service

2Area of stationary object

If a pressurized delivery system is installed in walls and ceilings for wider coverage, then area of protection is improved, but device complexity and installation difficulty are worsened

Engineering Contradiction:

Improvearea of protectionVSAvoidinstallation complexity

Core Design Contradiction:

Area of stationary objectVSDevice complexity

Solution Approach 1:

The system is designed to be multi-functional, serving both as a personal defense mechanism and a fire suppression system, thereby justifying the installation complexity through dual utility and maximizing the area of protection across different applications

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent uses a bag-on-valve canister as an intermediary component that simplifies the pressurized delivery system by providing ready-to-dispense gel without requiring complex pressurization mechanisms, making installation more feasible while maintaining wide coverage capability

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If the defensive fluid has high lubricity and gel-like consistency to disable assailants, then effectiveness in delaying assailant is improved, but ease of cleanup and environmental impact are worsened

Engineering Contradiction:

Improveeffectiveness in delaying assailantVSAvoidease of cleanup

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The invention carefully balances the concentration of glycerine (5-10 wt%) and thickening agents to achieve sufficient gel-like consistency for effectiveness while maintaining water solubility, allowing the fluid to be both effective in disabling assailants and easily cleanable with water

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The high lubricity and gel-like consistency that make the fluid effective in delaying and disabling assailants are converted into a benefit by ensuring the composition remains water-soluble and non-toxic, so that the same properties that cause difficulty in manipulation also facilitate easy cleanup with water

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

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 effectively delays or disables assailants by creating a slippery surface, providing additional fire suppression and irritation, while being environmentally friendly and easy to wash off, thus increasing escape time and offering broader protection without the limitations of traditional methods.

Implementation Method 1

a thickening agent at a concentration ranging from 1.75 wt% to 8.75 wt% of the composition

Methodology Applied

Scientific EffectThickening:

Implementation Method 2

a surfactant at a concentration ranging from 2 wt% to 15 wt% of the composition

Methodology Applied

Scientific EffectSurfactant action: Surfactant

Implementation Method 3

A pressurized reservoir containing the composition and having a fluid outlet through which the composition can flow

Methodology Applied

Scientific EffectPressure-driven flow: Pressure Gradient

Data Source

PatentEP3881303B1Non-lethal defensive fluid composition and pressurized delivery system

Publication Date: 2024.12.25 RANKIN DAVID DANIEL SR

Figure 1
Figure 2~3

AI summary

A lubric gel composition for personal defense is provided which includes a fatty acid at a concentration ranging from 5 wt% to 10 wt% of the composition, a thickening agent at a concentration ranging from 1.75 wt% to 8.75 wt% of the composition, a detergent at a concentration ranging from 1.03 wt% to 4.07 wt% of the composition, a surfactant at a concentration ranging from 2 wt% to 15 wt% of the composition, and water at a concentration ranging from 66 wt% to 90.21 wt% of the composition.