EP 0688491 B1 20030806 - ELECTRONIC SECURITY SYSTEM WITH NOVEL ELECTRONIC T-HANDLE LOCK
Title (en)
ELECTRONIC SECURITY SYSTEM WITH NOVEL ELECTRONIC T-HANDLE LOCK
Title (de)
ELEKTRONISCHES SICHERHEITSSYSTEM MIT ELEKTRONISCHEM T-SCHLOSS
Title (fr)
SYSTEME DE SECURITE ELECTRONIQUE COMPORTANT UN NOUVEAU DISPOSITIF DE VERROUILLAGE ELECTRONIQUE EN T
Publication
Application
Priority
- US 9402322 W 19940303
- US 2678193 A 19930305
Abstract (en)
[origin: WO9421089A1] An electronic security system includes an electronic lock mechanism (104) and an electronic key (101), each of which is provided with a microprocessor controller and a memory storing data including an ID code and encryption key codes. The lock microprocessor may either change ID codes stored in it's memory or encrypt a seed number to be used for determining access to the lock. The key can only be used to access the lock either once or for a limited number of successible times, and must thereafter be reprogrammed by a host computer (301) to be loaded with either the proper ID code or the appropriate encryption key code for that lock. The electronic lock operates a solenoid (1624) which retracts a bolt-blocking mechanism that prevents the unlocking of the bolt even when a key having the correct mechanical key cuts is inserted into the lock. Power for operating the electronic lock as well as the solenoid is provided by a power supply within the key. In a preferred embodiment the key unit is composed of a handheld computer witha separate internal circuit board which stores key code information and performs encryption/decryption functions. A novel electronic T-lock (1340) assembly is also provided for use with vending machines and the like.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
G07C 9/00309 (2013.01 - EP); G07C 9/00571 (2013.01 - EP); G07C 9/21 (2020.01 - EP US); G07C 9/27 (2020.01 - EP); E05B 5/003 (2013.01 - EP); G07C 2009/00412 (2013.01 - EP); G07C 2009/00468 (2013.01 - EP); G07C 2009/00476 (2013.01 - EP); G07C 2009/00761 (2013.01 - EP); G07C 2009/0088 (2013.01 - EP); G07C 2209/08 (2013.01 - EP)
Citation (examination)
- US 5140317 A 19920818 - HYATT JR RICHARD G [US], et al
- US 4829296 A 19890509 - CLARK CAREY S [US], et al
- US 4369442 A 19830118 - WERTH ROBERT L [US], et al
- US 5038588 A 19910813 - HALL CHARLES E [US]
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9421089 A1 19940915; AT E246866 T1 20030815; CA 2157480 A1 19940915; CA 2157480 C 19990525; DE 69433008 D1 20030911; EP 0688491 A1 19951227; EP 0688491 A4 19970625; EP 0688491 B1 20030806
DOCDB simple family (application)
US 9402322 W 19940303; AT 94911454 T 19940303; CA 2157480 A 19940303; DE 69433008 T 19940303; EP 94911454 A 19940303