Abstract: An improved ventilating range hood that drives a variable speed fan according to the state of four distinct air quality sensors: temperature, humidity, Carbon monoxide and smoke. A micro-controller is used to integrate the four signals and determine the appropriate ventilation requirement. This value is converted into a signal to drive the fan. Visual indicators are provided to display the state of each air quality factor. An audible alarm is activated if the levels remain at hazardous levels for more than a predetermined time interval after the fan has been turned on.

Abstract: An amusement device of a projectile nature that can be thrown or flung or propelled through the air by a launcher includes the characteristic that it can be induced through an electo-mechanical device that deploys articulatable aerodynamic members that cause it to spin in such a way as, to change it's trajectory in mid-flight in response to a signal generated from a remote control device.

Abstract: An amusement device of a projectile nature that can be thrown or flung or propelled through the air by a launcher includes the characteristic that it can be induced through electo-mechanical means, to change it's trajectory in mid-flight in response to a signal generated from a remote control device.