Pyrodynamic Compression Plate for Uniform Ink Reservoir Emptying
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Solution Overview
Problem
Existing smearing devices for secure transport of funds or valuables face issues with non-homogeneous compression force distribution, leading to incomplete emptying of the reservoir and uneven staining, due to the design of pyrotechnic charge-based systems which result in random pressure distribution and potential jamming of mechanical trigger devices.
Innovation Solution
A compression device with pyrodynamic means, comprising a base frame, a mobile tank compression plate, and a driving element with pyrotechnic triggering, ensures uniform pressurization and dynamic translation of the plate to maintain constant perpendicular movement, ensuring simultaneous and complete perforation of the reservoir and homogeneous ejection of the liquid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a pyrotechnic charge is used to compress the reservoir directly, then the compression force is high intensity, but the distribution of force is disproportionate and random
Solution Approach 1:
A plate is introduced as an intermediary element between the pyrotechnic charge and the reservoir. The plate receives the explosive force and distributes it uniformly across the reservoir surface, converting the concentrated pyrotechnic force into a distributed compression force that ensures complete and uniform reservoir emptying.
Solution Approach 2:
The plate is designed to automatically distribute the pyrotechnic force uniformly across the reservoir without requiring additional control mechanisms. The plate's geometry and positioning enable it to self-regulate the force distribution, ensuring complete compression and emptying of the reservoir.
2Device complexity
If the compression device is designed to be non-hermetic, then the design is simpler, but gas is lost during pyrotechnic charge explosion reducing charge intensity
Solution Approach 1:
The device is pre-filled with a pressurized gas before the pyrotechnic charge is activated. This preliminary pressurization ensures that when the pyrotechnic charge explodes, the gas is already in a state to effectively transmit the force to the plate and reservoir, maximizing the charge's effectiveness without requiring a completely hermetic seal.
3Productivity
If multiple perforation points are provided on the reservoir, then the liquid can be injected into all channels, but the perforation is not synchronized due to poor force distribution
Solution Approach 1:
The plate serves as a mediator that receives the pyrotechnic force and distributes it uniformly across all perforation points simultaneously. This ensures that all perforation points are activated at the same time, achieving synchronized liquid ejection into all spray channels for complete and uniform document staining.
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
Guarantees immediate and uniform compression of the reservoir, ensuring all contents are used and uniformly projected onto documents or valuables, preventing jamming and ensuring complete emptying and effective staining.
Implementation Method 1
the explosion of the charge exerts a high intensity pressure on the plate
Implementation Method 2
triggering a pyrotechnic charge which releases, with high intensity, a blast or a gas
Data Source
Figure 1
Figure 2~3
AI summary
The present invention concerns a device for compressing (1) a reservoir in particular for use in devices for setting off documents or valuable objects, comprising a base frame (13), a mobile element (15), defining a plane for pressing on the reservoir, and a driving element (17), the activation of the driving element (17) ensuring the movement of the mobile element (15). Said device is characterized in that the driving element (17) consists of pyrodynamic means enabling, prior to being activated, the reservoir to be uniformly pressurized ready to be perforated, and upon activation of said driving element (17), to be pyrotechnically triggered thereby releasing the mobile element (15) enabling the mobile element (15) to be dynamically translated, while providing a homogeneous and uniform distribution of the compressive load on the reservoir, and the dynamic movement of said mobile element (15) to its final position, parallel to the initial position, where the reservoir is emptied of its contents.