| abstract |
An easily installed delayed egress lock system that comprises a control module and a latching mechanism attached to the door jamb and a bolt attached to the door. The control module comprises a shell that houses the control circuitry. The latch mechanism comprises a casing that houses a keeper and actuator, two interconnecting channels for retaining the keeper and actuator, and an electrical solenoid. The mechanism also defines a port that receives the bolt when the door is shut. The bolt comprises an elongated body supported by a base and terminating with a spaced-apart head. Preferably, the primary door lock signals the control module when released to start counting down a preselected time period. At the end of the time period, the solenoid deactivates to unlock the door. In the preferred embodiment, the keeper comprises a ball while the actuator comprises a larger ball. The bolt for all embodiments defines a seat that receives the keeper. Installation of the system may be accomplished by first securing the control module and latch mechanism to the door jamb. Next, the bolt is locked into the port with marking dyes covering on each bolt base attachment point. When the door is forcibly shut, the resulting imprint on the door marks the attachment points. |