Auxetic Ballistic Implosion Shield for Powerline Shock Containment

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Solution Overview

Problem

Existing implosion devices used for joining electrical power line conductors generate significant audible noise, shock waves, pressure waves, and fragmentation debris, which can damage adjacent tools, equipment, and structures, and there is a need for a solution that minimizes these external effects while maintaining mechanical and electrical connections.

Innovation Solution

An implosion shield apparatus made of auxetic ballistic fabric is used to surround or shroud the implosion device, attenuating shock, sound, and fragmentation waves, and optionally supported by a frame, with fasteners securing the fabric layers to form a protective barrier.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If an implosion device is used to join electrical power line conductors, then mechanical and electrical connection integrity is improved, but audible noise, shock waves, pressure waves, and fragmentation debris are generated that can damage adjacent tools, equipment, and structures

Engineering Contradiction:

Improvemechanical connection integrityVSAvoidshock waves and fragmentation debris

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

A protective shield made of auxetic ballistic fabric is introduced as an intermediary element between the implosion device and the surrounding environment. The shield contains the fragmentation debris and attenuates shock waves and pressure waves, preventing them from damaging adjacent tools, equipment, and structures while allowing the implosion device to perform its joining function

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The protective shield utilizes auxetic ballistic fabric, which is a composite material with negative Poisson's ratio properties. This material provides enhanced protection against shock waves and fragmentation debris while maintaining flexibility and reusability across multiple implosion detonations

Inventive Principle:

Principle #40Composite materials

2Force

If traditional compression splice sleeves are used to join conductors, then mechanical connection is achieved, but electrical connection quality and ampacity are insufficient compared to implosion devices

Engineering Contradiction:

Improvemechanical connectionVSAvoidelectrical connection quality

Core Design Contradiction:

ForceVSReliability

Solution Approach 1:

The patent replaces traditional mechanical compression splice sleeves with an implosion device that uses controlled explosive force. This substitution transforms the joining mechanism from gradual mechanical compression to rapid explosive implosion, creating superior electrical and mechanical connections with better ampacity and connection integrity

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Object-affected harmful factors

If the implosion shield is made from rigid material, then protection against shock waves is improved, but flexibility and reusability for multiple detonations are reduced

Engineering Contradiction:

Improveshock wave attenuationVSAvoidreusability for multiple detonations

Core Design Contradiction:

Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The patent changes the physical parameters of the shield material by using auxetic ballistic fabric with negative Poisson's ratio. This material provides rigid-like protection against shock waves while maintaining flexibility and the ability to be reused across multiple implosion detonations, unlike traditional rigid shielding materials

Inventive Principle:

Principle #35Parameter changes

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 implosion shield effectively reduces the amplitude of shock, sound, and pressure waves, containing debris and protecting adjacent structures and equipment, while allowing reusable use for multiple implosion detonations.

Implementation Method 1

An implosion shield apparatus made of auxetic ballistic fabric is used to surround or shroud the implosion device, attenuating shock, sound, and fragmentation waves

Methodology Applied

Scientific EffectShock wave attenuation: Shock Wave

Implementation Method 2

The implosion shield effectively reduces the amplitude of shock, sound, and pressure waves

Methodology Applied

Scientific EffectAcoustic absorption: Acoustic Absorption

Implementation Method 3

containing debris and protecting adjacent structures and equipment

Methodology Applied

Scientific EffectPhysical containment: Physical Containment

Data Source

PatentUS20260071861A1Implosion shield apparatus and method

Publication Date: 2026.03.12 QUANTA ASSOCIATES LP

AI summary

An implosion shield of ballistic fabric is formed by a selected number of layers of ballistic fabric draped, enveloped or coiled around an implosion sleeve or dead-end and secured with fasteners through holes formed around the perimeter of the ballistic fabric. The implosion shield is installed around the implosion sleeve or dead-end by draping over or wrapping or enveloping and fastening the implosion shield around the implosion sleeve or dead-end so as to attenuate shock, pressure and sound waves from the detonation and so as to direct pressurized gas from the detonation along and parallel to the powerline or down and away from the powerline to keep it away from linemen in a bucket or on the ground.