Induction circulator

Claim 1

AN INDUCTION CIRCULATING UNIT FOR A POSITIVE PRESSURE MULTI-ROOM AIR CONDITIONING SYSTEM COMPRISING: (A) A CASING HAVING SPACED INLET AND OUTLET OPENINGS THEREIN FOR THE PASSAGE OF AIR THERETHROUGH, (B) A PLENUM HAVING UPPER AND LOWER WALLS DISPOSED IN SAID CASING BELOW SAID OUTLET OPENINGS, (C) SAID PLENUM ADAPTED TO BE CONNECTED TO A SOURCE OF CONDITIONED PRIMARY AIR FROM SAID MULTI-ROOM AIR CONDITIONING SYSTEM, (D) HEAT EXCHANGE MEANS DISPOSED IN SAID CASING BELOW SAID PLENUM AND ADJACENT SAID INLET OPENINGS TO ALLOW THE PASSAGE OF SECONDARY AIR THROUGH SAID HEAT EXCHANGE MEANS, (E) A PLURALITY OF SPACED NOZZLES EXTENDING FROM THE LOWER WALLS OF SAID PLENUM TO THE UPPER WALL THEREOF, SAID NOZZLE HAVING DIVERGENT OPENINGS AT THE LOWER AND UPPER ENDS THEREOF WITH THE WALL OF SAID NOZZLES BEING CONVERGENT TOWARD THE CENTER THEREOF, (F) TUBE MEANS DISPOSED IN EACH OF SAID NOZZLES AT THE CONVERGENT PORTION THEREOF TO COMMUNICATE PRIMARY AIR FROM SAID PLENUM TO SAID NOZZLE, TO INDUCE SECONDARY AIR INTO SAID NOZZLE FROM BELOW SAID PLENUM, TO CAUSE MIXING OF SAID PRIMARY AIR WITH SAID SECONDARY ARI, AND TO TRANSMIT SAID MIXED PRIMARY AND SECONDARY AIR UPWARD THROUGH SAID NOZZLE AND OUT SAIDD OUTLET OPENINGS.