Patent ID: 6431859
Filing Date: 2002-08-13
Classification: F23C,F23L,F26B

Abstract:
An apparatus comprising:a) a housing defining a process chamber and having an opening through which gas can exfiltrated said process chamber: b) a combustion structure defining a combustion chamber communicating with said process chamber; c) a burner operative to fire into said combustion chamber; d) a collector structure located outside said opening, said collector structure being configured to collect air and exfiltrated gas from an outside area adjacent to said opening; e) a duct structure communicating said collector structure with said burner so as to supply said collected air and exfiltrated gas to said burner and thereby to supply combustion oxidant to said burner; and f) a blower operative to drive a flow of said air across said outside area and into said collector structure such that said flow of said air entrains and carries said exfiltrated gas into said collector structure.