Patent ID: 7063140

Claim:
A method for controlling the air temperature of a building having a plurality of separate rooms and a central cooling system, the cooling system having a plurality of air ducts that deliver air to each of the rooms, comprising the steps of: a) providing an air vent in each of the rooms of the building, the air vent having a plurality of louvers thereon wherein the louvers have a motorized controller wherein the louvers are opened in a first position, closed in a second position, or adjusted to any position between the first and second positions; b) providing a main thermostat for controlling the operation of the central cooling system of the building, wherein the main thermostat will turn off the central cooling system when all of the rooms of the building reach a predetermined temperature and reopen all of said louvers in all of the rooms; c) providing a room thermostat in each of the rooms of the building to permit the temperature of the room to be regulated, wherein each room thermostat is connected to each motorized controller of the air vent disposed in each room and to the main thermostat so that the louvers of the air vent can be adjusted to the first, second or in-between position by the room thermostat according to the temperature selected by the operator, and so that the room thermostat will signal the main thermostat when each room reaches the predetermined temperature so that the main thermostat will then turn off the central cooling system; and d) controlling said cooling system to deliver cooling air to the rooms at the lowest desired temperature setting picked out of all of the rooms.