Patent ID: 8348175

Claim:
An apparatus for preventing and removing fog, the apparatus comprising: a water tank configured to be buried in a ground adjacent to a runway; a water tank temperature sensor configured to sense a water temperature of water in the water tank; a heater which is provided inside the water tank and configured to heat the water contained in the water tank; a cooling device which is provided inside the water tank and configured to cool the water contained in the water tank; sprinklers configured to be installed at opposite sides along the runaway and over the ground adjacent to the runaway and to spray the water supplied from the water tank towards the atmosphere over and adjacent to the runaway; a controller configured to control operation of the sprinklers, the heater, and the cooling device on the basis of the water temperature of the water in the water tank measured by the water temperature sensor, according to an externally inputted operational signal; and an automatic water level adjusting member which is installed inside the water tank to automatically adjust water level of the water tank by opening or closing a water inlet, depending upon change in the water level of the water tank, wherein the automatic water level adjusting member comprises: a support which is installed on the upper side of the water tank; an L-type pivot support which is pivotably suspended to the support; a float which is coupled to an end part of the pivot support to give a pivot force to the pivot support by varying an elevational height depending on the change in the water level; a weight which is suspended to the float; a traction bar which is coupled to one side of the pivot support; a ball which is coupled to the traction bar and positioned inside a water supply pipe to be pulled toward the water inlet by the traction bar in order to close the water inlet as the float ascends.