US Patent 7588195 Deicing apparatus

A deicing apparatus may include a reservoir containing a deicing agent, a distribution network, and at least a first nozzle, for deicing a surface, such as a sidewalk. In one embodiment, at least one or more of the reservoir or distribution network is located underground and at least one or more of the reservoir, distribution network, and nozzle is operatively fixed with respect to the associated surface. The apparatus may further be provided with pumping means for pumping the deicing agent through the apparatus.