Abstract: There is provided an apparatus that has a sensor unit located so as to monitor physical parameters of a stove top and a control unit that is positioned to turn off the stove top heating elements in response to the sensor unit. The sensor unit has an array of sensors such as ultraviolet, infrared, temperature, smoke, and combustion byproduct sensors. The sensor unit also has a microcontroller in the form of a neural network that is able to distinguish between a hazardous fire condition and a non-hazardous fire condition on the stove top. The neural network is trained by exposing the sensor unit to a variety of hazardous conditions and non-hazardous conditions and identifying to the neural network whether these conditions are hazardous or non-hazardous. Once the neural network has been trained, the sensor unit monitors the stove top and if it detects a hazardous condition, it signals the control unit, which turns the heat off on the stove top.

Abstract: The apparatus is used for closing and securing a door in its frame. A movable wedge is supported in a slot in the frame. A closing mechanism is employed for closing the door and a second mechanism is employed for moving the wedge into a slot formed in the edge of the door when the door is closed. A shape memory wire is used in conjunction with the closing mechanism for allowing the closing mechanism to close the door. A second shape memory wire is used in conjunction with the second mechanism for allowing the second mechanism to move the wedge from the frame slot into the door slot when the door is closed for securing the door to the frame.