Electronic combination lock having anti-tampering features
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United States of America Patent
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-
Jan 7, 2003
Issued Date -
N/A
app pub date -
Jan 27, 2000
filing date -
Jan 13, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electronic combination lock including an electronic combination input device, a lock-bolt mounted for movement between locked and unlocked positions and a rotatable first engagement element having disengaged and engageable positions. A first electric actuator is electrically coupled with the electronic combination input device and includes a rotatable output for rotating the first engagement element to its engageable position in response to a proper combination input. A manually operated and rotatable second engagement element may be engaged with the first engagement element in the engageable position thereof. A lock-bolt drive mechanism is operatively coupled between the lock-bolt and the first engagement element. A second electric actuator includes a movable output operatively coupled to the first engagement element to prevent the first engagement element from rotating until the proper combination is input.
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