Pistol-Shaped Personal Defense Device With Fingerprint Trigger
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Solution Overview
Problem
Existing personal defense devices that project lachrymator agents lack a pistol-shaped design incorporating a flashlight and a fingerprint actuated trigger.
Innovation Solution
A pistol-shaped device with an L-shaped housing, a valve, and a cannister for lachrymator agent dispensing, featuring a fingerprint-activated trigger, pressure dispensing mechanism, and integrated flashlight for targeting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a personal defense device is designed to project a lachrymator agent, then it provides defense capability, but it lacks integrated features such as flashlight and fingerprint actuated trigger
Solution Approach 1:
The patent combines multiple functions into a single integrated device: a pistol-shaped housing that accommodates both a lachrymator agent dispensing system and a flashlight, with a fingerprint sensor integrated into the trigger mechanism. This merging of functions directly addresses the versatility improvement while managing complexity through unified design.
Solution Approach 2:
The device is designed to perform multiple functions: dispensing lachrymator agent through the barrel, providing illumination via the flashlight, and controlling operation through fingerprint-actuated trigger. This multi-functionality enables a single device to serve as both a defense weapon and a lighting tool with secure access control.
2Reliability
If a fingerprint actuated trigger is incorporated, then user authentication and safety are enhanced, but device complexity increases
Solution Approach 1:
The traditional mechanical trigger system is augmented or replaced with a biometric authentication system. The fingerprint sensor integrated into the trigger requires verified fingerprint matching before enabling the mechanical release, substituting simple mechanical actuation with a more reliable biometric control mechanism.
Solution Approach 2:
The fingerprint sensor acts as an intermediary between the user and the trigger mechanism. It mediates the activation process by verifying biometric identity before allowing the mechanical trigger to release the lachrymator agent, adding a layer of authentication without completely replacing the mechanical system.
3Ease of operation
If a pistol-shaped design with integrated flashlight is created, then targeting capabilities are enhanced, but manufacturing complexity increases
Solution Approach 1:
The pistol-shaped housing is divided into functional segments: a barrel section for lachrymator dispensing, a grip section containing the cavity for the agent container, and an integrated flashlight section. This segmentation allows each component to be manufactured separately and then assembled, reducing overall manufacturing complexity while maintaining the integrated design benefits.
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
Provides a secure and effective means of dispensing lachrymator agents with user authentication and adjustable flow rates, enhancing targeting capabilities and user safety.
Implementation Method 1
The lachrymator agent is dispensed under pressure from the cannister through the channel toward a target
Data Source
AI summary
A personal defense device for projecting a lachrymator agent includes an L-shaped housing, which defines a barrel and a grip. A valve is positioned in the barrel proximate to the grip, which extends from a first end of the barrel. A channel extends from the valve to a second end of the barrel. A cavity extends into the grip and is in fluidic communication with the valve. The grip selectively engages a cannister, which contains a lachrymator agent, that is inserted into the cavity. The cannister is removably engaged to the L-shaped housing and an outlet of the cannister is operationally engaged to the valve. A trigger is engaged to the L-shaped housing and operationally engaged to the valve can be triggered to actuate the valve. The lachrymator agent is dispensed from the cannister through the channel toward a target that is in substantial alignment with the barrel.