Abstract: An self contained Emergency Battery Back-UP Power Station for traffic signal controllers having a general utility power supply, the Emergency Battery Back-UP Power Station having a small footprint cabinet containing at least two batteries, at least one DC to AC inverter, a battery charger, a manual transfer switch selectively connecting the utility power supply or the Back-UP Emergency Power Station to the traffic signal controller, electrical disconnecting means, a receptacle to connect a portable generator to recharge batteries if needed, combined in a tamper-proof weather-proof enclosure.

Abstract: A ceiling fan for cleaning air in a room wherein each blade of the ceiling fan has a filter holder securely attached to the top of each fan blade and a filter unit in each of the holders but within the confines of the fan blade such that, when the ceiling fan is operated, the airflow created by the ceiling fan will be forced through the filter unit from an opening on the leading edge through to an opening the adjacent edge, wherein the filter units can collect airborne particles.