Suppressor Cover Air Gap Thermal Management

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Solution Overview

Problem

Current firearm suppressor covers fail to effectively manage heat generated during rapid firing, leading to safety hazards, accuracy issues due to mirage effects, and premature component failure, while also being prone to loosening and overheating.

Innovation Solution

A suppressor cover assembly featuring an insulating cover, clamps, and standoffs that form an air gap to reduce heat transfer, using a heat shield to dissipate thermal energy via convection and radiation, and minimizing conductive pathways to maintain a safe outer temperature.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a suppressor cover is made from insulative materials like silicone or foam, then the cover provides thermal protection to the operator, but the cover becomes prone to melting or heat-related damage at higher temperatures

Engineering Contradiction:
Improvethermal protectionVSAvoidresistance to heat damage
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The suppressor cover is divided into multiple segments or sections that can be independently adjusted. This allows the cover to maintain structural integrity at high temperatures while providing thermal protection, as each segment can be optimized for its specific thermal environment

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cover material properties are changed based on the thermal environment. The system transitions from using purely insulative materials to using materials with temperature-dependent properties that maintain reliability across different firing rates and thermal conditions

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If a suppressor cover is tightly fitted to the suppressor, then the cover remains securely attached during firing, but the cover becomes prone to overheating and material degradation

Engineering Contradiction:
Improveattachment securityVSAvoidoperating temperature
Core Design Contradiction:
Stability of the object's compositionVSTemperature

Solution Approach 1:

A heat-resistant intermediary layer or spacing mechanism is introduced between the suppressor cover and the suppressor body. This intermediary maintains secure attachment while allowing thermal management, preventing the cover from directly contacting the hot suppressor surface

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The cover design incorporates preliminary thermal management features such as heat dissipation channels or reflective surfaces that are built in before firing. This preliminary structure prevents excessive heat buildup while maintaining attachment security

Inventive Principle:
Principle #10Preliminary action

3Object-affected harmful factors

If a suppressor cover provides heavy insulation, then the operator is protected from heat, but the suppressor operating temperature increases leading to premature failure

Engineering Contradiction:
Improveoperator protectionVSAvoidsuppressor operating temperature
Core Design Contradiction:
Object-affected harmful factorsVSTemperature

Solution Approach 1:

The suppressor cover provides differential insulation - heavier insulation in areas where operator contact is likely, and lighter or no insulation in areas where heat dissipation is critical for suppressor performance. This localized approach protects the operator while preventing excessive heat buildup

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system converts the heat that would normally be harmful to the operator into a beneficial thermal management strategy. By strategically positioning insulation, the heat flow is directed away from the suppressor critical components while still protecting the operator, turning potential harm into benefit

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

4Shape

If a suppressor cover is made from soft materials like foam, then the cover conforms to the suppressor shape, but the cover loosens and slides off due to recoil and thermal expansion

Engineering Contradiction:
Improveconformity to suppressorVSAvoidattachment stability
Core Design Contradiction:
ShapeVSStability of the object's composition

Solution Approach 1:

The suppressor cover uses composite construction combining soft conforming materials with rigid structural elements or attachment mechanisms. The soft portion maintains shape conformity while the rigid components provide stable attachment resistant to recoil and thermal expansion

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The cover design incorporates dynamic adjustment capabilities that allow the cover to adapt to thermal expansion and recoil forces. This may include flexible connection points or adjustment mechanisms that maintain stable attachment despite changing conditions

Inventive Principle:
Principle #15Dynamics

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 reduces the outer temperature of the suppressor cover, minimizes mirage effects, prevents overheating, and ensures the suppressor cover remains securely attached, enhancing safety and accuracy by managing heat transfer efficiently.

Implementation Method 1

one or more standoffs coupled to the one or more clamps and in contact with the insulating cover assembly to thereby form and maintain an air gap between the suppressor and an inside surface of the insulating cover assembly

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 2

using a heat shield to dissipate thermal energy via convection and radiation

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 3

using a heat shield to dissipate thermal energy via convection and radiation

Methodology Applied
Scientific EffectThermal radiation: Thermal Radiation

Data Source

PatentEP3240988B1Suppressor cover assembly and method
Publication Date: 2018.11.07 MAGPUL INDUSTRIES
  • EP3240988B1 patent drawingFigure 1
  • EP3240988B1 patent drawingFigure 2
  • EP3240988B1 patent drawingFigure 3

AI summary

A firearm suppressor cover assembly and method of protecting a user while firing a weapon are disclosed. The cover assembly has an insulating cover assembly, a one or more clamps, one or more standoffs per clamp, and an optional heat shield. The standoffs are coupled to the one or more clamps and in contact with the insulating cover assembly thereby forming an air gap between the suppressor and the insulating cover assembly. The heat shield may be arranged within the air gap.