Telescoping Gun Silencer for Compact Sound Suppression

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Solution Overview

Problem

Conventional firearm silencers require large volumes to effectively suppress sound, leading to increased length and interference with sight lines or overall firearm dimensions.

Innovation Solution

A compact firearm silencer design with three longitudinally arranged chambers, featuring a retractable third chamber that expands to accommodate gases, maintaining sound suppression while minimizing length.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the internal volume of the silencer is increased to suppress more sound, then sound suppression effectiveness is improved, but the outer dimensions become too large and interfere with sight lines

Engineering Contradiction:
Improvesound suppression effectivenessVSAvoidouter diameter
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The silencer employs a telescoping chamber design where an inner chamber can be retracted into an outer chamber, creating a nested structure. When not in use, the inner chamber is fully retracted to minimize the overall length and diameter. When needed, the inner chamber extends to provide additional volume for sound suppression, effectively nesting one functional element within another to resolve the contradiction between volume and compactness.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The silencer transitions from a static structure to a dynamic one by incorporating a telescoping mechanism that allows the inner chamber to extend and retract. This dynamic adjustment enables the silencer to change its volume and dimensions based on operational requirements, providing large volume when needed for sound suppression while maintaining a compact form factor when the suppressor is not active, thus resolving the contradiction between effective sound suppression and compact dimensions.

Inventive Principle:
Principle #15Dynamics

2Area of stationary object

If the outer dimensions of the suppressor are reduced to avoid interference with sight lines, then compactness is improved, but the length increases to maintain desired internal volume

Engineering Contradiction:
Improveouter diameterVSAvoidoverall length
Core Design Contradiction:
Area of stationary objectVSLength of moving object

Solution Approach 1:

Instead of increasing length to compensate for reduced diameter, the invention utilizes the telescoping mechanism to create volume through radial expansion rather than longitudinal extension. The inner chamber extends radially outward from the outer chamber, adding volume in a direction perpendicular to the barrel axis, thus avoiding interference with sight lines while maintaining compact overall length.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Ease of manufacture

If a fixed length chamber is used to suppress sound, then manufacturing simplicity is improved, but the silencer adds unnecessary length to the firearm

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidfirearm length
Core Design Contradiction:
Ease of manufactureVSLength of moving object

Solution Approach 1:

The invention replaces a fixed-length chamber with a dynamic telescoping chamber that can extend and retract. This allows the silencer to provide adequate sound suppression volume only when needed, rather than maintaining a permanently extended chamber. The telescoping mechanism is actuated by gas pressure during firing, automatically extending to provide suppression, then retracting to minimize firearm length, thus resolving the contradiction between manufacturing simplicity and compactness.

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 silencer achieves effective sound suppression with a compact form factor, reducing recoil and enhancing firearm maneuverability without adding unnecessary length.

Implementation Method 1

When a projectile is fired through the barrel, the force of the expanding gases pushes the third chamber outward from the second chamber

Methodology Applied
Scientific EffectThermal energy conversion: Heat Engine

Implementation Method 2

the force of the expanding gases pushes the third chamber outward

Methodology Applied
Scientific EffectPressure-driven motion: Pressure Gradient

Implementation Method 3

The spring pushes the third chamber back into the second chamber

Methodology Applied
Scientific EffectElastic recovery: Elasticity

Data Source

PatentUS12405078B2Compact space saving gun silencer
Publication Date: 2025.09.02 CGS TECHNOLOGY LLC
  • US12405078B2 patent drawing
  • US12405078B2 patent drawing
  • US12405078B2 patent drawing

AI summary

A compact silencer (suppressor) device for a firearm including multiple chambers which trap the gases from a projectile exiting the barrel of a gun to slow down the gases and reduce the temperature, sound, and flash associated with the projectile. In one embodiment, the first chamber which attaches to the barrel of the firearm includes sound baffling materials or gas porting baffles which vent gases from the second chamber passing rearward. The second chamber includes a chamber which can accommodate a retractable third chamber of the device, the second and third chamber of the device can have sound baffles to slow down the gases from the projectile.