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Printed Circuit Lock Mechanism

IP.com Disclosure Number: IPCOM000074347D
Original Publication Date: 1971-Apr-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 2 page(s) / 32K

Publishing Venue

IBM

Related People

Crenshaw, JA: AUTHOR

Abstract

This is an electronic circuit completing device for use in a security locking system in which one-half of a printed circuit matrix is mounted in the locked machine and the other half of the printed circuit which must be matched with the first half before the machine or structure can be unlocked is carried by the individual authorized to have access to the machine. The half of the printed circuit matrix which is not mounted or fixed to the machine or other structure which is locked is termed the key and is carried by the authorized individual. When the key is inserted and matched with the mating half mounted in the locked machine, a circuit is completed which provides an unlocking signal. The signal provided may be applied to an electric solenoid for actuating the locking mechanism or any other similar type of device.

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Printed Circuit Lock Mechanism

This is an electronic circuit completing device for use in a security locking system in which one-half of a printed circuit matrix is mounted in the locked machine and the other half of the printed circuit which must be matched with the first half before the machine or structure can be unlocked is carried by the individual authorized to have access to the machine. The half of the printed circuit matrix which is not mounted or fixed to the machine or other structure which is locked is termed the key and is carried by the authorized individual. When the key is inserted and matched with the mating half mounted in the locked machine, a circuit is completed which provides an unlocking signal. The signal provided may be applied to an electric solenoid for actuating the locking mechanism or any other similar type of device. Any attempt to pick this lock results in actuating an alarm system since the contacts in the fixed matrix attached to the structure to be unlocked are connected in a wrong order, and a circuit is completed which rings or actuates an alarm. The particular matrix used may be of any shape or size, and the number of contacts used or unused is variable. Combinations of contacts are virtually unlimited. In addition the half of the lock matrix associated with the machine may be hidden or remotely placed from the locked machine, thus enhancing the security aspect of the device.

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