A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
An exemplary access control device is configured for mounting to a door and includes a bolt, an actuator, and an indicator. The bolt has an extended position and a retracted position, and includes a front face that is visible when the bolt is extended and the door is in a closed position. The actuator is operable to move the bolt from the extended position to the retracted position. The indicator is positioned on the front face of the bolt such that at least a portion of the indicator is visible when the bolt is extended and the door is in the closed position.
An exemplary access control device is configured for mounting to a door and includes a bolt, an actuator, and an indicator. The bolt has an extended position and a retracted position, and includes a front face that is visible when the bolt is extended and the door is in a closed position. The actuator is operable to move the bolt from the extended position to the retracted position. The indicator is positioned on the front face of the bolt such that at least a portion of the indicator is visible when the bolt is extended and the door is in the closed position.
BOLT INDICATOR
OVERBEY JAMES W (author)
2023-04-06
Patent
Electronic Resource
English
IPC:
E05B
LOCKS
,
Schlösser
Low-cost door key with switch sensor indicator to detect dead bolt lock status
| European Patent Office | 2015