78311809
Oct 9, 2003
Mar 27, 2007
Electronic lightning safety equipment, namely sensors for detecting the presence of lightning in the vicinity of buildings and recreational facilities, said sensors being connected by fiber optic cables to a central switching mechanism that isolates buildings and equipment from the municipal power grids in order to protect them from power surges associated with lightning strikes and also activates audible and visible alarms to alert people to the presence of lightning
Electrical and Scientific Apparatus