Canted Helical Firearm Suppressor for Gas Attenuation

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Solution Overview

Problem

Conventional firearm suppressors with baffle designs are not always effective in fully attenuating the audible frequencies and muzzle flash produced by firearms, leading to a continuing need for improved designs.

Innovation Solution

A firearm suppressor featuring a cylindrical body with a helical portion canted at an oblique angle, which increases the surface area for gas attenuation and heat dissipation, and includes channels extending from the bore to the outer surface to facilitate gas flow and heat transfer, reducing back pressure and recoil.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional baffle designs are used in firearm suppressors, then the structure is simple and easy to manufacture, but the effectiveness in attenuating audible frequencies and muzzle flash is insufficient

Engineering Contradiction:

Improveeffectiveness in attenuating audible frequencies and muzzle flashVSAvoidstructural complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies curvature by using a helical portion that winds around the cylindrical body portion, replacing conventional flat or straight baffle structures with a curved, three-dimensional helical configuration. This helical structure extends radially outward from the cylindrical body portion and defines crests and troughs that create multiple surfaces for gas interaction, thereby improving attenuation effectiveness while maintaining a relatively simple overall structure.

Inventive Principle:

Principle #14Spheroidality (Curvature)

2Reliability

If a helical portion with increased surface area is added to enhance gas attenuation and heat dissipation, then noise and muzzle flash reduction improve, but device complexity and manufacturing difficulty increase

Engineering Contradiction:

Improvegas attenuation and heat dissipation effectivenessVSAvoidmanufacturing difficulty

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent merges the helical portion with the cylindrical body portion to form an integrated structure. The helical portion is configured to wind around the cylindrical body portion, with the helical portion and cylindrical body portion forming a unified component that reduces the number of separate parts. This integration maintains manufacturing simplicity while achieving increased surface area for heat dissipation and gas attenuation through the helical geometry.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If channels are added to facilitate gas flow and heat transfer, then back pressure and recoil are reduced, but the structural complexity and manufacturing precision requirements increase

Engineering Contradiction:

Improveback pressure and recoil reductionVSAvoidchannel formation precision

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The patent applies local quality by forming channels within the cylindrical body portion that extend from the bore through the cylindrical wall to the outer surface. These channels are strategically positioned to facilitate gas flow and heat transfer at specific locations where needed, rather than requiring complex channel networks throughout the entire structure. This localized approach reduces manufacturing precision requirements while achieving the desired back pressure and recoil reduction.

Inventive Principle:

Principle #3Local quality

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 design effectively reduces noise, muzzle flash, and recoil by enhancing gas attenuation and heat dissipation, with potential bolt velocity increases of less than 15% and improved surface area for heat radiation.

Implementation Method 1

improved surface area for heat radiation

Methodology Applied

Scientific EffectThermal radiation: Thermal Radiation

Implementation Method 2

heat dissipation

Methodology Applied

Scientific EffectConvection: Convection

Implementation Method 3

channels extending from the bore to the outer surface to facilitate gas flow and heat transfer

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS10060695B2Firearm suppressor

Publication Date: 2018.08.28 STEALTH PROJECT LLC

AI summary

Disclosed herein are suppressors for use with firearms or the like, and methods of making and using such firearm suppressors. Some aspects relate to a firearm suppressor including a helical portion extending helically around a cylindrical body portion, at least a section of the helical portion being canted such that it extends radially outward from the cylindrical body portion at an oblique angle relative to a plane normal to the central longitudinal axis. In some cases, the helical portion is canted distally.In another respect, a firearm suppressor including a helical portion extending radially outward from and helically around a cylindrical body portion having a bore to define a crest and a root, and at least one channel extends from an inner opening along the bore to an outer opening along the root of the helical portion.In yet another respect, a firearm suppressor including a cylindrical wall defining a central bore extending about a longitudinal axis, and one or more cooling bores spaced from the central bore, the cooling bores extending into the wall offset from the central longitudinal axis.