Secure Refill System Keying Mechanism

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Solution Overview

Problem

Current refilling systems for high-value or hazardous substances are vulnerable to tampering and theft, as they lack effective security measures to restrict access during transportation and transfer.

Innovation Solution

A secure refilling system featuring a storage unit with a keying mechanism that only allows connection to a docking station when engaged, utilizing a ratchet mechanism to prevent multiple openings or closings, and indicators to ensure all contents are transferred before sealing, thereby enhancing security and reducing theft risks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a simple refilling system is used, then ease of operation is improved, but security against tampering and theft deteriorates

Engineering Contradiction:
Improveease of refilling operationVSAvoidtampering and theft risk
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a docking station as an intermediary component between the storage unit and the printer. The docking station includes a valve mechanism that controls ink flow and a keying mechanism that requires authentication. This intermediary system allows secure refilling while maintaining ease of operation for authorized users, as they simply need to insert the cartridge and press a button, while unauthorized access is blocked by the security mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces purely mechanical connection systems with an electromechanical system. The valve mechanism incorporates electronic controls and keying mechanisms that require authentication before allowing ink transfer. This substitution maintains the simplicity of the refilling operation from the user's perspective while adding robust security against tampering and theft through electronic authentication and control mechanisms.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Object-affected harmful factors

If a secure keying mechanism is added, then security against unauthorized access is improved, but device complexity increases

Engineering Contradiction:
Improveunauthorized accessVSAvoidcomplexity of refilling system
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent merges multiple security functions into a single integrated docking station assembly. The keying mechanism, valve control, and authentication systems are combined in one component that interfaces with the printer. This consolidation reduces overall system complexity compared to having separate security devices, while still providing comprehensive protection against unauthorized access to the ink supply.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The docking station serves multiple functions: it acts as a mechanical connector for the ink cartridge, a valve control mechanism for ink flow regulation, a security keying system for authentication, and a monitoring device for tracking refilling operations. By making the docking station multi-functional, the patent reduces the need for separate security components, thereby limiting the increase in device complexity while maintaining strong security measures.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Object-affected harmful factors

If a single-use valve mechanism is implemented, then prevention of residual access is improved, but ease of operation deteriorates

Engineering Contradiction:
Improveresidual accessVSAvoidease of refilling operation
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The patent incorporates feedback mechanisms that monitor the refilling operation and provide confirmation to the user. The system includes indicators or messages that confirm when the ink cartridge has been successfully replaced and the valve has been properly sealed. This feedback maintains ease of operation by guiding users through the process and confirming successful completion, while the single-use valve mechanism ensures no residual access is possible after the operation.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS10875314B2Secure refill system
Publication Date: 2020.12.29 SICPA HOLDING SA
  • US10875314B2 patent drawing
  • US10875314B2 patent drawing
  • US10875314B2 patent drawing

AI summary

A storage unit for storing a fluid, the storage unit comprising at least one wall defining a chamber and an opening. The storage unit comprises a storage unit valve arranged at the opening to selectively seal the chamber. The storage unit valve is able to be selectively opened and closed to allow fluid to flow through the storage unit valve. The storage unit comprises a storage unit keying mechanism configured to allow the storage unit to only connect to a complementary docking station keying mechanism disposed on a docking station for receiving the storage unit. The storage unit valve is configured to only be able to be selectively opened and closed when the storage unit keying mechanism is engaged with said complementary docking station keying mechanism.