Firearm Warning Band With Chamber Plug State Indicator

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Solution Overview

Problem

Existing firearm safety devices do not provide a clear indication of the loaded or unloaded state of the firearm.

Innovation Solution

A firearm warning assembly comprising a band and an indicator that engages the firearm, where the band is expandable and contractible, and a chamber plug insert that provides a visual indication of an unloaded state by engaging the firearm's chamber when unloaded.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a band or lock is used to cover or inhibit operation of a trigger mechanism, then firearm safety is improved, but indication of loaded or unloaded state is lost

Engineering Contradiction:

Improvefirearm safetyVSAvoidloaded or unloaded state indication

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The patent combines the physical restraint function (band/lock covering trigger) with the information indication function (visual indicator of loaded/unloaded state) into a single integrated device. The indicator is incorporated into the band structure, allowing both safety restraint and state visualization to coexist in one component system.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The band device performs multiple functions simultaneously: it physically restrains the trigger mechanism for safety, provides visual indication of the firearm's loaded or unloaded state, and can be removed or adjusted by authorized users. This multi-functionality resolves the contradiction by making the safety device also an information communication device.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If lock boxes or safes are used to restrict access to firearm, then safety is improved, but indication of loaded or unloaded state is not provided

Engineering Contradiction:

Improvefirearm safetyVSAvoidloaded or unloaded state indication

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The invention segments the safety function into two parts: physical access restriction (band covering trigger) and information indication (visual indicator). This segmentation allows the device to provide both safety and information, unlike a lock box which only provides physical restriction without state indication.

Inventive Principle:

Principle #1Segmentation

3Device complexity

If no visual indicator is provided, then device complexity is reduced, but safety is compromised due to lack of loaded state indication

Engineering Contradiction:

Improvestructure simplicityVSAvoidsafety

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent employs color changes or visual indicators (such as colored windows, colored components, or visual cues) to indicate the loaded or unloaded state of the firearm. This allows the device to maintain relative simplicity while adding the critical safety function of state indication through visual differentiation.

Inventive Principle:

Principle #32Color changes

Data Source

PatentUS12553677B2Firearm warning assembly

Publication Date: 2026.02.17 RALSTEC CORP

AI summary

A firearm warning assembly includes a band comprising a first edge region having an insert hole and a second edge region opposite the first edge region having an attachment hole and an attachment insert. The attachment insert includes a base and a post extending from the base and engageable with the insert hole. A method includes engaging an attachment insert comprising a base and a post extending from the base with an insert hole in a first edge region of a band, positioning the band around a firearm, and engaging the post with an attachment hole in a second edge region of the band opposite the first edge region to secure the band to the firearm.