Down draft vertical kiln system

Claim 1

A SYSTEM FOR CONTINUOUSLY CALCINING MATERIALS COMPRISING VERTICALLY-DISPOSED KILN MEANS, SUPPLY MEANS COMMUNICATING WITH SAID KILN MEANS FOR CHARGING SAID KILN MEANS WITH MATERIAL TO BE CALCINED, SAID KILN MEANS COMPRISING, IN SERIES, PRE-HEATING-CHAMBER MEANS, RETRICTED-PASSAGE MEANS, CALCINING-CHAMBER MEANS, AND COOLING-CHAMBER MEANS FOR PROGRESSIVELY RECEIVING THERETHROUGH SAID MATERIALS INTRODUCED BY SAID SUPPLY MEANS, SAID PRE-HEAT-CHAMBER MEANS INCLUDING UPPER, EXHAUSTGAS, OUTLET PORT MEANS AND LOWER, INLET, PRE-HEAT PORT MEANS, SAID KILN MEANS INCLUDING DOWNWARDLY-DIRECTED BURNER MEANS AT THE UPPER PORTION OF SAID CALCININGCHAMBER MEANS AND FORMING A COMBUSTION CHAMBER PORTION AT THE UPPER PORTION OF SAID CALCINING-CHAMBER MEANS AND SUBSTANTIALLY ADJACENT THE LOWER PORTION OF SAID RESTRICTED-PASSAGE MEANS, SAID COOLING-CHAMBER MEANS IN CLUDING FLUID-INLET MEANS FOR PERMITTING COOLING AND COMBUSTION-SUPPORTING FLUID TO MOVE UPWARDLY THROUGH SAID COOLING-CHAMBER MEANS, SAID COOLING-CHAMBER MEANS INCLUDING COMBUSTION-FLUID, OUTLET-PORT MEANS COMMUNICATING WITH SAID BURNER MEANS FOR CAUSING OPTIMUM AND SUBSTANTIALLY COMPLETE COMBUSTION OF FUEL IN SAID COMBUSTION-CHAMBER PORTION PRIOR TO COCURRENT PASSAGE OF HOT COMBUSTION GASES CONTACTING SAID MATERIAL PASSING THROUGH SAID CALCINING-CHAMBER MEANS, SAID CALCININGCHAMBER MEANS INCLUDING COMBUSTION-GAS, OUTLET-PORT MEANS ABOVE SAID COMBUSTION-FLUID, OUTLET-PORT MEANS COMMUNICATING WITH SAID INLET-PORT MEANS OF SAID PREHEAT-CHAMBER MEANS, SAID RESTRICTED-PASSAGE MEANS IN CLUDING A CONFIGURATION ABOVE SAID BURNER MEANS SUBSTANTIALLY INHIBITING THE PASSAGE OF COMBUSTION OF MATERIAL THERETHROUGH AND YET PERMITTING GRAVITATION OF MATERIAL THEREBELOW, SAID RESTRICTED-PASSAGE MEANS CONFIGURATION CAUSING HOT COMBUSTION GASES TO FLOW FROM SAID COMBUSTION-CHAMBER PORTION THROUGH SAID CALCINING-CHAMBER MEANS COCURRENTLY WITH THE MATERIAL TO SAID COMBUSTION-GAS OUTLET-PORT MEANS WHEREBY NO SUPPLEMENTAL DRAFT-CREATING MEANS IS REQUIRED.

Claim 2

A SYSTEM FOR CONTINUOUSLY CALCINING MATERIALS COMPRISING VERTICALLY-DISPOSED KILN MEANS, SUPPLY MEANS COMMUNICATING WITH SAID KILN MEANS FOR CHARGING SAID KILN MEANS WITH MATERIAL TO BE CALCINED, SAID KILN MEANS COMPRISING, IN SERIES, PRE-HEATING-CHAMBER MEANS, RETRICTED-PASSAGE MEANS, CALCINING-CHAMBER MEANS, AND COOLING-CHAMBER MEANS FOR PROGRESSIVELY RECEIVING THERETHROUGH SAID MATERIALS INTRODUCED BY SAID SUPPLY MEANS, SAID PRE-HEAT-CHAMBER MEANS INCLUDING UPPER, EXHAUSTGAS, OUTLET PORT MEANS AND LOWER, INLET, PRE-HEAT PORT MEANS, SAID KILN MEANS INCLUDING DOWNWARDLY-DIRECTED BURNER MEANS AT THE UPPER PORTION OF SAID CALCININGCHAMBER MEANS AND FORMING A COMBUSTION CHAMBER PORTION AT THE UPPER PORTION OF SAID CALCINING-CHAMBER MEANS AND SUBSTANTIALLY ADJACENT THE LOWER PORTION OF SAID RESTRICTED-PASSAGE MEANS, SAID COOLING-CHAMBER MEANS IN CLUDING FLUID-INLET MEANS FOR PERMITTING COOLING AND COMBUSTION-SUPPORTING FLUID TO MOVE UPWARDLY THROUGH SAID COOLING-CHAMBER MEANS, SAID COOLING-CHAMBER MEANS INCLUDING COMBUSTION-FLUID, OUTLET-PORT MEANS COMMUNICATING WITH SAID BURNER MEANS FOR CAUSING OPTIMUM AND SUBSTANTIALLY COMPLETE COMBUSTION OF FUEL IN SAID COMBUSTION-CHAMBER PORTION PRIOR TO COCURRENT PASSAGE OF HOT COMBUSTION GASES CONTACTING SAID MATERIAL PASSING THROUGH SAID CALCINING-CHAMBER MEANS, SAID CALCININGCHAMBER MEANS INCLUDING COMBUSTION-GAS, OUTLET-PORT MEANS ABOVE SAID COMBUSTION-FLUID, OUTLET-PORT MEANS COMMUNICATING WITH SAID INLET-PORT MEANS OF SAID PREHEAT-CHAMBER MEANS, SAID RESTRICTED-PASSAGE MEANS IN CLUDING A CONFIGURATION ABOVE SAID BURNER MEANS SUBSTANTIALLY INHIBITING THE PASSAGE OF COMBUSTION OF MATERIAL THERETHROUGH AND YET PERMITTING GRAVITATION OF MATERIAL THEREBELOW, SAID RESTRICTED-PASSAGE MEANS CONFIGURATION CAUSING HOT COMBUSTION GASES TO FLOW FROM SAID COMBUSTION-CHAMBER PORTION THROUGH SAID CALCINING-CHAMBER MEANS COCURRENTLY WITH THE MATERIAL TO SAID COMBUSTION-GAS OUTLET-PORT MEANS WHEREBY NO SUPPLEMENTAL DRAFT-CREATING MEANS IS REQUIRED.