Gun Sighting Device Top-Mounted Laser Alignment

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Solution Overview

Problem

Trigger-guard mounted laser sights on guns are complex to mount, align, and use due to their three-dimensional shapes with non-uniform cross-sections, making it difficult to holster the gun and requiring two hands to operate, especially when positioned below the gun barrel.

Innovation Solution

A sighting device with a first light source, such as a laser, and a second light source, like an infra-red or visible light, spaced apart with a mechanical sight in between, mounted on the top surface of the gun, using a housing made of metal with a connective portion and set screws for secure attachment, allowing for single-hand operation and proper holstering.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the laser sight is mounted on the trigger guard, then the laser can be attached to the weapon, but the complex three-dimensional shape with non-uniform cross-sections makes it difficult to mount, align and use

Engineering Contradiction:
Improveease of mountingVSAvoidcomplexity of trigger guard shape
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent extracts the laser sight from the complex trigger guard area and relocates it to the simpler rail system on the gun. This allows the laser to be mounted on a flat, uniform surface rather than contending with the three-dimensional non-uniform cross-section of the trigger guard, significantly simplifying mounting and alignment procedures

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of manufacture

If the laser sight is positioned below the gun barrel, then the laser can be mounted on the picatinny rail, but the gun becomes difficult or impossible to holster and requires two hands to operate

Engineering Contradiction:
Improveease of mountingVSAvoidease of holstering and single-hand operation
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The patent repositions the laser sight from a below-barrel location to a top-surface location on the gun. This dimensional change allows the laser to be mounted higher on the weapon, clearing the way for proper holstering and enabling single-hand operation while maintaining all mounting benefits

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Ease of operation

If the laser sight is mounted on the top surface of the gun, then the gun can be easily holstered and operated with one hand, but the laser may interfere with the mechanical sight

Engineering Contradiction:
Improveease of holstering and single-hand operationVSAvoidalignment complexity with mechanical sight
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent incorporates specific alignment features directly into the laser housing at the local mounting position. These features include alignment slots and adjustment mechanisms that are built into the laser unit itself, allowing for precise alignment with the mechanical sight without requiring complex external alignment procedures or modifying the gun's existing sight system

Inventive Principle:
Principle #3Local quality

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 easy mounting, alignment, and operation of the laser sight on a gun without obstructing holstering, allowing for single-hand use and improved usability by maintaining a compact size and efficient power management.

Implementation Method 1

a light-emitting sighting device, particularly a laser... The laser projects a narrow beam of light in a direction generally parallel to the gun's bore

Methodology Applied
Scientific EffectLaser: Laser

Implementation Method 2

the second light source may be an infra-red light; a flashlight; a LED flashlight; or a visible light or infra-red laser

Methodology Applied
Scientific EffectInfrared radiation: Infrared Radiation

Data Source

PatentEP2192374B1Gun with mounted sighting device
Publication Date: 2014.11.12 MOORE LARRY E
  • EP2192374B1 patent drawingFigure 1
  • EP2192374B1 patent drawingFigure 1A~1C
  • EP2192374B1 patent drawingFigure 1D~1F

AI summary

A sighting device (10) is mountable to a gun (2000). The device includes a light source (20) (preferably a laser), a power source (30) connectable to the light source (20) and a mount (102) attachable to the gun (2000) so that the laser is juxtaposed either the top surface of the gun (2000) or a side surface of the gun (2000). In one embodiment, the sighting device (10) includes a bottom rail mountable in a slot (2010) on the gun (2000), wherein the slot (2010) is preferably positioned on the top surface of the gun (2000). The sighting device (10) may also include a mechanical sight that functions as the rear mechanical sight on the gun and/or a secondary light source.