Toolless Suppressor Mount Using Rotating Cams

Solution Overview

Problem

Existing muzzle attachment mounting systems for firearms require tools for installation and removal, and they often fail to securely maintain alignment and prevent loosening due to recoil, vibration, and thermal cycling.

Innovation Solution

A toolless mounting assembly that uses a combination of threaded engagement and cams to securely attach a suppressor or other muzzle accessory to a firearm barrel, preventing loosening due to recoil, vibration, and thermal cycling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional threaded mounting systems are used, then secure attachment is achieved, but tool-free installation and removal cannot be accomplished

Engineering Contradiction:
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The mounting system employs dynamic cam mechanisms that can be easily actuated by hand to transition between locked and unlocked states. The cams rotate to engage or disengage from the barrel, providing tool-free operation while maintaining secure attachment during firing.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The mounting assembly is divided into separate functional components: a body with threaded engagement, rotating cams for locking, and a collar for actuation. This segmentation allows each component to perform its specific function efficiently while enabling tool-free operation through simple collar rotation.

Inventive Principle:
Principle #1Segmentation

2Reliability

If simple threaded engagement is used, then ease of installation is improved, but prevention of loosening due to recoil and vibration is insufficient

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The cam mechanisms are designed to engage the barrel surface in advance, creating preliminary counter-forces that prevent loosening. When the collar is rotated to lock, the cams press against the barrel, establishing anti-loosening forces before recoil and vibration occur during firing.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The system uses dynamic cam engagement where the cams can rotate to adjust their engagement position. This dynamic adjustment allows the mounting system to maintain reliable prevention of loosening while still being operable by hand without tools.

Inventive Principle:
Principle #15Dynamics

3Reliability

If multiple locking mechanisms are added, then prevention of loosening is improved, but device complexity increases

Engineering Contradiction:
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The mounting assembly merges multiple functions into a single integrated structure: threaded engagement for basic attachment, rotating cams for locking and alignment maintenance, and a collar for actuation. This combination achieves reliable secure alignment without requiring separate independent locking mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cam mechanisms serve multiple functions simultaneously: they lock the mounting assembly to the barrel, maintain precise alignment, and prevent loosening from recoil and vibration. This multi-functionality reduces the need for additional separate components while improving reliability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enables tool-free installation and removal of muzzle devices, ensuring secure alignment and preventing unintended loosening, thereby enhancing operational reliability and ease of maintenance.

Implementation Method 1

A locking mechanism on the mount proximal end portion includes one or more cams received in openings defined in the mount proximal end portion. The cams are movable between an engaged position and a disengaged position. In the engaged position, the cams are positioned to engage an outer surface of a muzzle adapter or barrel installed in the proximal end portion of the attachment mount.

Methodology Applied
Scientific EffectCam mechanism: Cam

Data Source

PatentUS12235062B2Toolless suppressor mount
Publication Date: 2025.02.25
  • US12235062B2 patent drawing
  • US12235062B2 patent drawing
  • US12235062B2 patent drawing

AI summary

A mounting assembly for firearm muzzle device includes an attachment mount extending along a central axis and having a proximal end portion and a distal end portion, the proximal end portion being configured to attach to a muzzle adapter or firearm muzzle, such as by threaded engagement. A locking mechanism on the mount proximal end portion includes cams received in openings defined in the mount proximal end portion, the cams movable between engaged position and disengaged positions. In the engaged position, the cams can engage an outer surface of a muzzle adapter installed in the attachment mount. A locking nut is rotatable about the mount proximal end portion and is configured so that rotating the locking nut in a first rotational direction moves the cams toward the engaged position and rotating the locking nut in a second rotational direction moves the cams towards the disengaged position.