Merchandise Security Device Using Shape Memory Material Lock Mechanism

The patent replaces traditional mechanical key lock mechanisms with an electronic lock mechanism that operates using electrical power. The electronic lock uses a motor or solenoid actuator controlled by an electronic control circuit, eliminating mechanical keys and tumblers that can be easily tampered with or broken. This substitution significantly improves security while the electronic control provides simplified operation through electronic keys or codes.

The patent changes the operating parameters of the lock mechanism from mechanical to electrical. The lock mechanism now responds to electrical signals and power rather than mechanical key insertion. This parameter change enables the use of electronic authentication methods and eliminates the physical vulnerabilities of mechanical key systems.

The patent integrates multiple functions into a single electronic control unit that manages both the lock mechanism and power distribution. The electronic control circuit serves as both the authentication system and the power management system, eliminating the need for separate power sources in each security device. This multi-functionality reduces overall device complexity while maintaining improved security.

The patent introduces an external power source or power bus as an intermediary that supplies electrical power to multiple security devices. Instead of each device having its own internal battery or power source, the system uses a centralized power distribution network. This intermediary approach reduces the complexity and manufacturing cost of individual devices while maintaining electronic lock security.