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| Number | Title | Issue Date |
| 4483256 | Biomass gasifier combustor system and components therefor An improved biomass gasifier combustor system including a furnace, a screw feeder system for feeding a biomass fuel to the furnace and a venturi eductor system adapted for drawing a gaseous combustion product from a combustion chamber of the furnace is di... | 11/20/1984 |
| 4324053 | Anti-pollution rotary-sweep grain drier An improved grain drying apparatus of the type having a bin with a perforated floor through which hot air is blown upward for grain drying purposes, and a rotary sweep assembly employing a wet grain distributing auger on its lag side and a dried grain ret... | 04/13/1982 |
| 4241517 | Anti-pollution rotary-sweep grain drier An improved grain drying apparatus of the type having a bin with a perforated floor through which hot air is blown upward for grain drying purposes, and a rotary sweep assembly employing a wet grain distributing auger on its lag side and a dried grain ret... | 12/30/1980 |
| 4085520 | Anti-pollution grain drying apparatus An anti-pollution grain drying apparatus comprising: a grain drying bin having a perforated floor through which hot air is blown upwardly for drying purposes; a rotary sweep mounted in the bin for counter-clockwise (CCW) sweep movement along the floor, du... | 04/25/1978 |
| 4022335 | Spreading-unloading rotary sweep apparatus of the hole-forming sleeve type A reversible rotary sweep has a single railless trough-less contemporaneously reversible 16" OD horizontal long auger and a depending holeformer composed of a 191/2" OD depending short auger and a surrounding 21" ID concentric sleeve. In unloading, a subs... | 05/10/1977 |
