Abstract: A controlled air incinerator having an increased capacity for burning waste material and having increased efficiency for completely burning all burnable waste material fed thereto. The controlled air incinerator, which is sometimes referred to as a "starved air" incinerator, requires accurate control of burning conditions so as to provide at all times a discharge of clean flue gases free from pollutants. In the present incinerator, means are provided for transferring the waste material therethrough while burning, the means causing the burning waste material to tumble within the combustion chamber and open up so as to expose to combustion air any unburned but burnable parts of the waste material whereby the oxygen of the combustion air will result in complete combustion.

Abstract: An afterburner apparatus to eliminate combustible products in exhaust gases so as to produce a substantially pollution-free gas for discharge to atmosphere. The afterburner apparatus is especially suitable for use with incinerators wherein the exhaust gases from the main combustion chamber oftentimes contain burnable waste products due to incomplete combustion. However, it may also be used with other types of combustion equipment, such as furnaces, gas heaters, or the like, wherein they, too, discharge exhaust gases having some burnable waste products therein. The afterburner apparatus provides for a more complete comsumption of waste products in that it is capable of obtaining a higher temperature in its combustion zone because heated air is supplied thereto to support combustion, the use of the heated air resulting in a saving in the amount of fuel used to fire the combustion chamber.