Personal Security Device With Traceable Marking Liquid
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Solution Overview
Problem
Existing personal security devices lack the ability to easily connect the offender to the victim, making it difficult to investigate and prosecute attacks.
Innovation Solution
A personal security device with a base body forming a chamber sealed by a film, containing a safety liquid, and a cover body with a cutting device that perforates the film to release the liquid, which can include traceable and marking substances to connect the offender to the victim.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If prior art personal security devices use sound, dyes or lighting to mark the offender, then the attack or assault is interrupted, but the offender cannot be easily connected with the victim for investigation
Solution Approach 1:
The patent introduces a traceable substance as an intermediary that transfers from the victim to the offender during the assault. This substance serves as a reliable connecting element between victim and offender, enabling investigation without requiring complex direct connection mechanisms. The traceable substance acts as a passive mediator that naturally transfers during the attack scenario.
Solution Approach 2:
The patent extracts the connection function from the active device operation and embeds it in the safety liquid itself through traceable substances. Instead of requiring the device to actively establish a connection, the traceable substance is taken out and transferred passively during the assault, simplifying the device while maintaining reliable offender-victim connection capability.
2Ease of operation
If the device releases safety liquid through film perforation, then the liquid is released effectively, but the device requires a specific activation mechanism
Solution Approach 1:
The device is segmented into distinct functional components: a base body containing the safety liquid, a separate cover body with the cutting device, and a film separating them. This segmentation allows each component to be simple in itself while the assembly provides the required functionality. The cutting device in the cover body is a simple element that becomes effective only when the cover is positioned correctly on the base.
Solution Approach 2:
The device transitions from a static sealed state to an active release state through the dynamic action of moving the cover body relative to the base body. The cutting device dynamically engages with the film during this movement, perforating it to release the liquid. This dynamic mechanism provides clear user feedback and ensures intentional activation.
3Reliability
If the chamber is sealed by a film, then the safety liquid is contained securely, but the film must be perforated for release
Solution Approach 1:
The film provides a protective barrier that cushions against accidental activation. The cutting device is positioned in the cover body such that it only contacts and perforates the film when the cover is deliberately positioned on the base in the correct orientation. This beforehand protection through the film's structural integrity prevents premature or accidental liquid release.
Solution Approach 2:
The use of a thin film as the sealing barrier provides an optimal balance between secure containment and controlled release. The film is sufficiently strong to maintain sealing under normal conditions but can be cleanly perforated by the cutting device when activated. This thin film structure ensures reliable sealing while enabling the intended release mechanism to function effectively.
Data Source
AI summary
A personal security device (100), comprising: a base body (110) forming a chamber (110), wherein a first opening (140) of the chamber (110) is sealed by a film (190); a safety liquid provided in the chamber (110); and a cover body (200) movably attached to the base body (100). Wherein the cover body (200) comprises a first surrounding portion (210) circumscribing a first portion (180) of the base body (100), and a top portion (220) arranged above the film (190). Wherein the top portion (220) comprises a cutting device (230a, 230b) facing the film (190), and a release opening (240) extending through the top portion (220). Wherein the cover body (200) is configured to be moved in relation to the base body (100) such that the cutting device (230a, 230b) perforates the film (190) when the cover body (200) is moved towards the film (190) thereby releasing the safety liquid through the release opening (240).