Door Closure System, and Networked Fire Alarm System

A networked fire protection system, comprising:

• a plurality of fire detection devices, wherein each fire detection device of said plurality of fire detection devices is wirelessly coupled to every other fire detection device of said plurality of fire detection devices, and
• a plurality of door closing components, each of said fire detection device of said plurality of fire detection devices being in electrical communication or acoustical communication with a corresponding door closing component, each door closing component comprising:
• a mechanically-biased door closer adapted to be mounted to a wall adjacent a hinged door,
• an rotating arm having a proximal end coupled to the door closer, and a distal end adapted to engage a door and to force the door from an door open position to a door closed position upon actuation of the door closer and resulting movement of the arm,
• an electronic controller adapted to receive an input signal from an ancillary electronic device and then generate an electronic output signal in response thereto, the electronic controller including a battery, and
• an electronic strike adapted to releasably engage the rotating arm to hold the arm in an arm-stowed position and release the arm upon receiving an electronic output signal from the electronic controller for movement of the arm from its arm-towed position to an engaged position biasing the door towards a door closed position.

A first door closure system for use with an ancillary electronic fire detection device, a hinged door, and an adjacent door support structure, the door closure system comprising:

• a mechanically-actuated door closer having a spring-biased arm movable between an arm-stowed position having a potential force and an extended position releasing the potential force so as to move the arm and thereby force the arm against the door, and thereby move the door to a door closed position;
• an electronic release mechanism, the electronic release mechanism being movable between a locked position holding the spring-biased arm in its arm-stowed position and a release position disengaged from the arm to allow the release of the potential force to move the arm to its extended position, and thereby move the door to its door closed position;
• and
• an electronic controller electronically coupled to the electronic release mechanism so as to control actuation of the electronic release mechanism, the electronic controller being configured to receive an input signal from the ancillary electronic fire detection device and to deliver an electronic signal output to the electronic release mechanism.

A residence having a plurality of hazardous condition detectors, hinged doors, and door closure systems, wherein:

• each door closure system is installed in the residence adjacent an associated door;
• each door closure system comprises a mechanically-actuated door closer having an arm movable between a stowed position and an extended position so as to move the arm, and thereby force the arm against a surface of the residence;
• each door closure system further comprises an electronic controller configured to receive an activation signal from one of the smoke detectors, and in response deliver an electronic signal to cause the arm to move to its extended position and to thereby move its associated door to a door closed position;
• and
• the hazardous condition detectors are in communication with one another so that if one of the plurality of hazardous condition detectors is actuated, each of the door closure systems is activated to move the associated doors to their door closed positions.