Thermal Respirating Sound Suppressor for Firearms

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Solution Overview

Problem

Existing firearm sound suppressors face issues with thermal transference, gas pressure buildup, and maintenance difficulties, particularly when used on fully automatic firearms, leading to malfunctions and safety concerns.

Innovation Solution

A mechanically air-cooled suppressor with a gas pressure valve and release system, featuring an expansion chamber with multiple gas regulating ports, a thermal tube, pressure piston, and spring-loaded venting system, along with a design that allows for easy serviceability and the use of a graphite and paraffin lubricant to reduce friction and thermal transference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-generated harmful factors

If a suppressor is used on fully automatic firearms, then sound suppression is achieved, but gas pressure buildup causes over pressurizing and malfunction

Engineering Contradiction:
Improvesound suppressionVSAvoidgas pressure buildup
Core Design Contradiction:
Object-generated harmful factorsVSReliability

Solution Approach 1:

The patent extracts the gas pressure regulation function from the traditional suppressor structure by introducing a separate blowback valve assembly. This valve captures and redirects excess gas pressure away from the suppressor tube, preventing over pressurizing while maintaining sound suppression effectiveness.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The blowback valve acts as an intermediary between the high-pressure gas environment and the suppressor tube. It mediates the gas pressure by capturing excess pressure in a dedicated chamber and redirecting it through controlled ports, protecting the suppressor from direct exposure to damaging pressure levels.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-generated harmful factors

If traditional suppressors are used in sustained operation, then sound suppression continues, but thermal transference causes overheating and malfunction

Engineering Contradiction:
Improvesound suppressionVSAvoidthermal transference
Core Design Contradiction:
Object-generated harmful factorsVSTemperature

Solution Approach 1:

The thermal management function is extracted from the suppressor tube by introducing a separate thermal tube that runs parallel to it. This thermal tube captures excess heat through its own cooling channels and redirects it to cooling fins, preventing thermal transference to the suppressor tube while maintaining sound suppression.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The thermal tube serves as a thermal intermediary between the suppressor tube and the external environment. It absorbs thermal energy through controlled transference and dissipates it via cooling fins, protecting the suppressor tube from overheating during sustained operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Object-generated harmful factors

If suppressors are designed for sound suppression, then noise reduction is achieved, but maintenance and servicing become difficult

Engineering Contradiction:
Improvenoise reductionVSAvoidmaintenance difficulty
Core Design Contradiction:
Object-generated harmful factorsVSEase of repair

Solution Approach 1:

The suppressor is segmented into distinct modular components including the suppressor tube, blowback valve assembly, thermal tube, and cooling fin assembly. Each module can be independently accessed, removed, and serviced, greatly simplifying maintenance while preserving the integrated sound suppression functionality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The design incorporates dynamic access features such as removable covers and adjustable components that allow maintenance personnel to service internal elements like the blowback valve and thermal tube without disassembling the entire suppressor, making maintenance adaptable to different service scenarios.

Inventive Principle:
Principle #15Dynamics

4Temperature

If cooling systems are added to reduce thermal transference, then thermal regulation improves, but device complexity increases

Engineering Contradiction:
Improvethermal regulationVSAvoidstructure complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The thermal management system merges multiple functions into integrated components. The thermal tube combines heat absorption, heat transfer, and structural support functions. The cooling fins combine heat dissipation with the suppressor's external structure, reducing overall complexity while improving thermal regulation.

Inventive Principle:
Principle #5Merging (Combining)

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 regulates thermal transference and gas pressure, reducing recoil and muzzle flash, while enabling safe and efficient operation in both semi-automatic and fully-automatic modes, and allowing for easy maintenance to prevent physical contact burns and malfunctions.

Implementation Method 1

gas pressure buildup within these systems

Methodology Applied
Scientific EffectGas pressure: Pressure Increase

Implementation Method 2

thermal transference, and malfunctions in relation to the thermal dynamics

Methodology Applied
Scientific EffectThermal transference: Conduction (thermal)

Implementation Method 3

mechanically air cooled suppressor

Methodology Applied
Scientific EffectAir cooling: Convection

Implementation Method 4

spring loaded venting system

Methodology Applied
Scientific EffectSpring-loaded mechanism: Spring

Implementation Method 5

use of a graphite and paraffin lubricant to reduce friction and thermal transference

Methodology Applied
Scientific EffectLubrication: Lubrication

Data Source

PatentUS10739097B1Thermal respirating sound suppressor
Publication Date: 2020.08.11 GAINES LANCE L
  • US10739097B1 patent drawing
  • US10739097B1 patent drawing
  • US10739097B1 patent drawing

AI summary

A mechanically vented noise suppressor for a firearm using a piston and baffles to capture above atmospheric gas pressure. The device uses a series of baffles in combination with a piston contained between two springs inside a tube. This piston moves to absorb and release high pressure gas from the barrel bore and draw in outside air to cool the suppressor components.