Sound Suppressor Orientation Locking With Pawl Indexing

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Solution Overview

Problem

Existing firearm sound suppressors face issues with the elongate body undesirably rotating relative to the piston assembly, requiring excessive force for locking and potentially unintentional release, which affects the suppressor's orientation and performance.

Innovation Solution

An orientation assembly with pawls and a selector component, such as a button or wheel, is used to selectively engage with the indexing ring, allowing controlled rotation and locking of the elongate body, reducing the need for excessive force and preventing unintended rotation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If a brake is used to prevent rotation of the elongate body, then rotational stability is improved, but excessive force is required to engage and disengage the brake

Engineering Contradiction:
Improverotational stabilityVSAvoidease of engagement
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The brake assembly is segmented into multiple components including a brake lever, brake pad, and indexing ring with notches. This segmentation allows the braking function to be distributed across several elements, reducing the force required to engage and disengage the brake while maintaining rotational stability when engaged.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

An indexing ring with notches serves as an intermediary between the brake pad and the elongate body. The notches provide predetermined stopping positions that allow the brake to engage more easily at specific intervals, reducing the force needed while maintaining stability during operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Stability of the object's composition

If a brake is used to prevent rotation, then orientation control is improved, but unintentional release may occur

Engineering Contradiction:
Improveorientation controlVSAvoidreliability of locking
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The brake assembly incorporates a spring that automatically engages the brake pad with the indexing ring at predetermined notches. This self-service mechanism ensures consistent engagement without requiring additional user action, improving reliability by preventing unintentional release while maintaining orientation control.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The spring-loaded brake mechanism provides beforehand cushioning by maintaining constant light pressure on the indexing ring notches. This pre-engagement ensures the brake is ready to prevent rotation before any unintended release can occur, improving reliability while maintaining orientation control.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Stability of the object's composition

If excessive force is required for locking, then stability is improved, but device complexity increases

Engineering Contradiction:
Improvelocking stabilityVSAvoidcomplexity of locking mechanism
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The locking mechanism is segmented into a brake lever, brake pad, spring, and indexing ring with multiple notches. This segmentation distributes the locking function across several simple components rather than requiring a single complex mechanism, achieving locking stability while keeping overall device complexity manageable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The indexing ring with notches acts as an intermediary that simplifies the locking interaction. By providing predetermined engagement points, it allows the brake to achieve stable locking with minimal force and simple component design, reducing overall device complexity while maintaining locking stability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20250362100A1Firearm sound suppressor
Publication Date: 2025.11.27 SILENCERCO WEAPONS RESEARCH LLC
  • US20250362100A1 patent drawing
  • US20250362100A1 patent drawing
  • US20250362100A1 patent drawing

AI summary

A firearm accessory may include an elongate body having an end that is positioned adjacent to a firing end of a barrel of a firearm. The firearm accessory may also include a piston assembly that is located at least partially within the elongate body. A first end of the piston assembly may be configured to be secured to the barrel of the firearm. The piston assembly may also include an indexing ring positioned at a second end of the piston assembly. The elongate body and the piston assembly may be rotatable relative to one another about a longitudinal axis that extends from the first end of the piston assembly to the second end of the piston assembly. The firearm accessory may also include an orientation assembly that includes a pawl and a selector component for selectively disengaging the pawl with the indexing ring of the piston assembly.