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| Number | Title | Issue Date |
| 7231780 | Damper device for refrigerator A damper device for a refrigerator has a step motor used as the power source for rotating a baffle to open/close the cold air passage of the refrigerator in a more secured manner. The damper device for a refrigerator includes a frame installed in the cold air passag... | 06/19/2007 |
| 6261093 | Heat regenerative oxidizer and method of operation The present invention relates to regenerative thermal or catalytic oxidizers and methods of operation thereof for oxidizing combustible components of feed gas mixtures. In accordance with the disclosed invention, operation of the heater used to supply sup... | 07/17/2001 |
| 5630714 | Process for controlling combustion of burners in furnace and an apparatus therefor A process for controlling combustion of burners arranged in a plurality of respective control zones divided in a furnace, includes the step of repeating a cycle of successively subjecting the burners to combustion for a short time. At least one temperatur... | 05/20/1997 |
| 5419388 | Regenerative heat exchanger system and an operating method for the same A regenerative heat exchanger system includes a heat accumulator provided in an insulating vessel for accumulating heat energy, the heat accumulator having a first end and a second end opposing to the first end and being capable of permitting gas to flow ... | 05/30/1995 |
| 4141797 | Method of operating a battery of coke ovens The operation of a battery of coke ovens with regenerative change of draught on heating flues includes adjustably controlling the combustion of gases in the heating flues to insure uniform vertical heating of the coking coal in the coke oven chambers. Con... | 02/27/1979 |
| 4102636 | Furnace with heat exchanger flow control An industrial heating furnace wherein hot exhaust gases from the furnace are heat exchanged in a rotary ceramic heat exchanger with air which is supplied to burners in the furnace for combustion air. The temperature of the gases within the furnace is cont... | 07/25/1978 |
