Electronic input and dial entry lock
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United States of America Patent
Stats
-
Dec 8, 1998
Issued Date -
N/A
app pub date -
Jul 31, 1996
filing date -
Mar 30, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electronic combination lock having a dial-shape handle with a keypad incorporated therein is disclosed. Rotation of the handle extends or retracts a bolt that closes or opens the lock. In one embodiment, a gear rotated by the shaft displaces the rack end of radially-extending bolts that extend or retract. The keypad includes indicia that inform the user of the extended or retracted condition of the bolt. A battery pack is used to energize circuitry, and the circuitry provides a control signal that activates a solenoid to extend or retract a bolt blocking device, which in turn prevents or enables movement of the bolt. A visual indicator warns of a low voltage or power condition in the battery pack. Electrical contacts are provided in the face plate of the handle to connect the circuitry to an external power source in case the battery pack fails.
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Family
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