Fanned vent cover insert

Abstract

A fanned vent cover insert, and an air handing system having such a fanned vent cover insert, for increasing air flow from an air vent. The fanned vent cover insert includes a battery and a direct current motor-generator having a rotor. A fan is attached to the rotor. A blower switch selectively connects the battery to the motor-generator so as to selectively cause the fan to move air. A battery charger is connected to the motor-generator and to the battery. The battery charger charges the battery when air moves the fan when the motor is not turning the fan.

1 . A fanned vent cover insert for increasing air flow from an air vent, comprising:
 a battery;   a direct current motor-generator having a rotor,   a fan attached to the said rotor,   an air flow switch for selectively connecting said battery to said motor-generator so as to drive said motor-generator to cause said fan to move air, and   a battery charger connected to said motor-generator and to said battery, said battery charger for charging said battery when air movement causes said fan to rotate said motor-generator.   
     
     
         2 . The fanned vent cover insert according to  claim 1 , further comprising an air vent for receiving air passing through said fanned vent cover insert. 
     
     
         3 . The fanned vent cover insert according to  claim 1  wherein said battery is rechargeable. 
     
     
         4 . The fanned vent cover insert according to  claim 1  wherein said direct current motor-generator is a permanent magnet brushed motor-generator. 
     
     
         5 . The fanned vent cover insert according to  claim 1 , further comprising a seal for reducing air leaks as said air passes into said fanned vent cover insert. 
     
     
         6 . An air handling system, comprising:
 an air processing unit for processing air and for blowing said processed air out of said air processing unit;   an air duct receiving said processed air from said air processing unit, said air duct including an air exhaust for enabling air flow out of said air duct; and   a fanned vent cover insert for receiving air flow air from said air exhaust and for increasing said air flow, said fanned vent cover insert including:
 a battery; 
 a direct current motor-generator having a rotor, 
 a fan attached to the said rotor, 
 an air flow switch for selectively connecting said battery to said motor-generator so as to drive said motor-generator to cause said fan to increase said air flow, and 
 a battery charger connected to said motor-generator and to said battery, said battery charger for charging said battery when said air flow causes said fan to rotate said motor-generator. 
   
     
     
         7 . The air handling system according to  claim 6 , further including an air vent for receiving air from said fanned vent cover insert. 
     
     
         8 . The air handling system according to  claim 6 , wherein said air processing unit is a furnace. 
     
     
         9 . The air handling system according to  claim 6  wherein said air processing unit is an air conditioner. 
     
     
         10 . The air handling system according to  claim 6 , further comprising an air vent for receiving air passing through said fanned vent cover insert. 
     
     
         11 . The air handling system according to  claim 6  wherein said battery is rechargeable. 
     
     
         12 . The air handling system according to  claim 6  wherein said direct current motor-generator is a permanent magnet brushed motor-generator. 
     
     
         13 . The air handling system according to  claim 6 , further comprising a seal for reducing air leaks as said air passes into said fanned vent cover insert. 
     
     
         14 . The air handling system according to  claim 6 , further comprising an air vent for receiving air from the fanned vent cover insert.