US Patent 10013872 Fire sentry

System, method, and apparatus for automatically disabling an appliance to prevent accidental fires. A shut-off system is coupled to a smoke detector. When the smoke detector alarm is activated a signal is sent to the shut off system coupled to a cooking appliance. The shut off system includes a timer and an override mechanism. If the override mechanism is triggered prior to the timer expiring, then the shut off system does not activate. If the override mechanism is not triggered prior to the timer expiring then the shut off system activates and decouples the appliance from its power supply.