Finger-Worn Revolver with Ring Frame and Cylinder

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Solution Overview

Problem

Conventional firearms are often unsuitable for concealed carry due to size and weight constraints, which impede user movement and limit clothing choices, and existing designs do not effectively enable concealed carry in a user's hand.

Innovation Solution

A compact revolver design featuring a frame with a rotatable cylinder, a ring for finger placement, and a finger rest, eliminating the need for a trigger, allowing the revolver to be worn on the finger like a ring for concealed carry, with a firing pin mechanism that can be cocked and discharged without a conventional barrel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional firearms are used for concealed carry, then firearm functionality is maintained, but size and weight constraints impede user movement and limit clothing choices

Engineering Contradiction:
Improveuser movement freedomVSAvoidfirearm weight
Core Design Contradiction:
Ease of operationVSWeight of moving object

Solution Approach 1:

The firearm is segmented into minimal essential components: a frame with ring, cylinder, and firing pin mechanism. Non-essential components like traditional triggers, barrels, and housings are removed, dividing the firearm into only the critical elements needed for function while reducing overall size and weight.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Essential components are extracted and retained while non-essential components are removed. The design extracts only the frame, cylinder, chamber, and firing pin mechanism, eliminating triggers, barrels, and other conventional firearm parts that add weight and bulk without being strictly necessary for the core firing function.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If conventional firearms are used for concealed carry, then firearm functionality is maintained, but the firearm cannot be effectively concealed in a user's hand

Engineering Contradiction:
Improveconcealment capabilityVSAvoidfirearm volume
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The firearm is divided into minimal segments (frame with ring, cylinder, firing pin) that can be compactly arranged to reduce overall volume, enabling the firearm to fit on a user's finger for effective concealment.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Non-essential volume-consuming components such as traditional triggers, barrels, and protective housings are removed, leaving only the essential firing mechanism that occupies minimal space and can be concealed on the user's hand.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of operation

If conventional firearms are used for concealed carry, then firearm functionality is maintained, but the design complexity increases

Engineering Contradiction:
Improvedesign simplicityVSAvoidfirearm component count
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The design extracts and removes non-essential components (triggers, barrels, complex safety mechanisms, protective housings), retaining only the core functional elements: frame with ring, cylinder, chamber, and firing pin mechanism, thereby simplifying the overall design.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of starting with a conventional firearm design and removing parts, the design inverts the approach by starting with the essential firing function and adding only the minimum necessary components (frame, ring for finger placement, cylinder, chamber, firing pin), resulting in a simpler overall design.

Inventive Principle:
Principle #13The other way round (Inversion)

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 secure, concealed carry and easy operation of a firearm on the user's finger, allowing for quick access and use in self-defense situations while maintaining concealment, with a design suitable for various hand sizes and styles.

Implementation Method 1

each passage defining a bore forward of the chamber and configured to closely receive a bullet and retain propellant pressure to expel the bullet

Methodology Applied
Scientific EffectMechanical Energy to Kinetic Energy transformation:

Data Source

PatentUS12140400B2Revolver
Publication Date: 2024.11.12 NRARMS
  • US12140400B2 patent drawing
  • US12140400B2 patent drawing
  • US12140400B2 patent drawing

AI summary

Revolvers have a frame, a cylinder rotatably mounted to the frame and defining a plurality of passages, each passage having a chamber configured to receive a cartridge, each passage defining a bore forward of the chamber and configured to closely receive a bullet and retain propellant pressure to expel the bullet, and each bore having a forward aperture. A firing facility may be connected to the frame rearward of the cylinder and registered with a selected one of the passages, the revolver being free of elements forward of the selected one of the passages. The frame may include a ring defining an aperture configured to receive a first finger. The ring may be free of a trigger. A finger rest may be outside of the ring and configured to engage a second finger. The finger rest may be an elongated arcuate extension having a free end away from the frame.