Firearm Frame Relief for Barrel Void Debris Capture

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Solution Overview

Problem

The 1911-style firearms are susceptible to debris migration into internal areas, leading to wear, damage, and operational issues, particularly affecting the barrel, which compromises reliability, maintenance needs, accuracy, and safety.

Innovation Solution

Incorporating a relief in the inner surface of the firearm frame coaxially situated to capture debris and a barrel lug with flutes to direct debris away from the breech, enhancing debris management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the 1911 firearm design is used, then the firearm has a loyal following and has been in production for over one-hundred years, but the firearm is susceptible to debris migrating into internal areas such as the barrel void

Engineering Contradiction:

Improvedebris resistanceVSAvoiddebris intrusion

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and removes debris from the barrel void by creating a dedicated debris collection chamber that captures debris before it can migrate into working joints. The relief feature in the frame and debris collection chamber work together to extract harmful debris particles from the operational areas of the firearm.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces a debris collection chamber as an intermediary space between the barrel void and the working joints. This intermediary chamber captures and holds debris, preventing it from reaching critical areas where it could cause wear or damage.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Strength

If debris collects in working joints of the firearm, then the firearm structure remains intact, but unnecessary wear or other damage occurs

Engineering Contradiction:

Improvestructural integrityVSAvoidwear resistance

Core Design Contradiction:

StrengthVSReliability

Solution Approach 1:

The patent extracts debris from the working joints area by providing a debris collection chamber that captures debris before it can settle in working joints. The relief feature and collection chamber work together to remove debris from areas where it would cause wear.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent converts the harmful effect of debris accumulation into a beneficial outcome by designing a debris collection chamber that intentionally captures debris in a controlled location. This transforms the problem of debris management into a solution where debris is directed to a designated collection area rather than causing damage elsewhere.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Ease of operation

If the barrel void is designed to accommodate the barrel and slide movement, then the firearm operates correctly, but debris can migrate into and collect in the barrel void

Engineering Contradiction:

Improveslide movementVSAvoiddebris accumulation

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a debris collection chamber as an intermediary space that intercepts debris before it can accumulate in the barrel void. This intermediary chamber allows the barrel void to maintain its functional design for slide movement while preventing debris accumulation through the collection chamber's capture mechanism.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250354770A1Firearm frame with a relief

Publication Date: 2025.11.20 OA DEFENSE LLC

AI summary

Firearm with a relief for debris. The relief can sit below where the barrel would typically sit once assembled with the frame. The relief can be shaped such that the debris that would typically be held in the barrel void would instead fall into the relief.