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| Number | Title | Issue Date |
| 7178262 | Air dryer system and method employing a jet engine An air dryer and process employs a jet engine for producing high quality dried products. A turbofan jet engine in an air-drying system uses both thermal and non-thermal air-drying. The turbofan jet engine is housed within an air distribution chamber for directing ex... | 02/20/2007 |
| 7024794 | Centrifugal pellet dryer with plastic wall panels A centrifugal pellet dryer including a stationary cylindrical screen, a driven elevating rotor in said screen elevating wet pellets inside the screen and imparting radial forces to the wet pellets to impact them against the interior of the screen to enable moisture ... | 04/11/2006 |
| 7024796 | Process and apparatus for manufacture of fertilizer products from manure and sewage This invention discloses systems and methods for conversion of manure to novel fertilizer and/or soil builder products useful as input for organic farming operations. The equipment systems comprise a gas turbine generator unit (preferred heat source), a dryer vessel... | 04/11/2006 |
| 6944967 | Air dryer system and method employing a jet engine An air dryer and process employs a jet engine for producing high quality dried products. A turbofan jet engine in an air-drying system uses both thermal and non-thermal air-drying. The turbofan jet engine is housed within an air distribution chamber for directing ex... | 09/20/2005 |
| 6655039 | Centrifugal dryer For separating and drying pellets from a suspension, centrifugal dryers have proved successful wherein a rotor equipped with conveyor blades and disposed vertically in an outside housing for collecting the liquid is enclosed coaxially by a hollow body for... | 12/02/2003 |
| 6438866 | Flow disrupter for dryers The present invention provides a flow disrupter within the flow path of a slurry comprising a desired particulate matter and a transport fluid so as to impart a force angularly disposed to an otherwise obtained direction of travel, thereby preventing the ... | 08/27/2002 |
| 6367163 | Hot air dryer A hot air slurry dryer having a cylindrical housing with a central shaft rotatably mounted in the housing. Material to be dried moves from an upstream end of the housing to an outlet at a downstream end. A hot air inlet is connected to the upstream end of... | 04/09/2002 |
| 6237244 | Centrifugal pellet dryer for small applications A dryer for removing surface moisture from a pelletized product and more specifically a dryer which is constructed with dimensions enabling it to effectively centrifugally remove surface moisture from pellets of resin material received from an underwater ... | 05/29/2001 |
| 6170168 | Circular drying element and drying plant with such a drying element Annular drying element (15) for mounting on a rotor axle in a drying plant for indirect heating or cooling of moist, comminuted, biological material such as fishmeal, offal from slaughterhouses, mash from breweries and similar materials of animal, vegetab... | 01/09/2001 |
| 6138375 | Support ring for pellet dryer screen An improved support ring is disclosed for a polymer resin pellet dryer screen of the type which includes cylindrical screen sections interconnected by two semicircular bands forming a support ring or connecting band. The support ring is positioned in spac... | 10/31/2000 |
| 6119363 | Rotary drum for drying pourable goods Directly heated rotary drums are used in the drying of pourable goods such as wood chips or strands. Drums are provided with built-in fixtures such as cross fixtures, in order to ensure good heat transmission from the drying gas to the goods. The inventio... | 09/19/2000 |
| 5711089 | Radiant heater for processing of polymers This invention comprises a radiant heater for use in thermally processing granular polymers and powders. The heater comprises an enclosed air-tight case for housing the reflector, the electrical and structural elements, and the lamps and lamp chamber. The... | 01/27/1998 |
| 5709036 | Aggressive convective drying in a conical screw type mixer/dryer The present invention relates to improved drying techniques which increase the capacity and efficiency of agitated pan type dryers. In particular, the present invention relates to a conical screw type mixer/dryer apparatus and method for aggressive convec... | 01/20/1998 |
| 5638606 | Spider and lifter assembly for centrifugal pellet dryer Improvements in centrifugal pellet dryers and more particularly to improvements in the rotor structure which includes a shaft, pellet lifter assemblies and supporting spiders which support the pellet lifter assemblies from the shaft. Each spider is made o... | 06/17/1997 |
| 5634282 | Radiant heater system for solid phase crystallization and polymerization of polymers A system for the solid phase polymerization of polymers comprising a crystallizer, and wherein cold amorphous polymer is introduced to the crystallizer. A source of infrared radiation is associated with the crystallizer, and the polymer is heated by apply... | 06/03/1997 |
| 5570516 | Drying system having continuously connected close spiral conveyers Disclosed is a drying system having continuously connected close spiral conveyers mainly including a material mixer, a pump, a plurality of spiral conveyers connected end-to-end and zigzagging their way from top to bottom, a plurality of steam chambers ar... | 11/05/1996 |
| 5380084 | Asphalt drum mixer with self-scouring drum A drum mixer for heating and drying stone aggregate as part of a process of continuous production of asphalt paving composition, the drum mixer including: an elongate hollow rotatable drum having a length and an outer surface, the elongate hollow rotatabl... | 01/10/1995 |
| 5380082 | Asphalt drum mixer with curved scoop-like mixing tips An asphalt drum mixer includes a rotating drum within a fixed sleeve which defines an annular chamber, and mixing tips mounted on the drum and in the annular chamber. The mixing tips pass through the hot mix asphalt laying in the bottom of the annular cha... | 01/10/1995 |
| 5373647 | Method and a system for drying sludge A method and a system serve to completely or partially dehydrate sludge by evaporation which originates from e.g. sewage. The sludge is dried with addition of heat in a drying chamber (2), the sludge being transported on an endless travelling grate (3) fr... | 12/20/1994 |
| 5293696 | Device for the dehydration of sewage sludge A method and apparatus for dehydrating sewage sludge is described. Sewage sludge is placed into a dehydration chamber. The sewage sludge is heated to convert moisture in the sewage sludge to steam and cause gasification. Steam and gases are drawn from the... | 03/15/1994 |
| 5263267 | Method and apparatus for reducing volatile content of sewage sludge and other feed materials Apparatus for the drying of sludges and other fouling feed materials. A rotary screw type indirect heat exchanger is provided having at least one screw member. The screw member includes a helical-shaped flight having a helix angle of about 10 degrees or l... | 11/23/1993 |
| 5197205 | Continuous dryer The continuous dryer of the invention is essentially characterized in that in addition to blades, said rotor is provided with at least one centrifuging element extending along the entire axis of the rotor advantageously in a helical pattern in the product... | 03/30/1993 |
| 5144108 | Kiln for producing litharge by means of the calcination of massicot The kiln (1) for producing litharge has a thermally insulated tubular body (2) containing, throughout its length, a shaft (30) with paddles acting as an auger. The tubular body (2) is coaxial with an induction coil (11), which heats it. The raw material i... | 09/01/1992 |
| 4982514 | Apparatus for heating and/or drying An apparatus for the heating and/or drying of wet, comminuted material, e.g. organic material, comprises a stationary housing (2) with a rotatable, hollow rotor (3) with inlet (4) and discharge (5) of a heating medium and possible condensate (6) thereof, ... | 01/08/1991 |
| 4912301 | Apparatus and method for the production of oxides of lead A furnace for producing oxides of lead includes an enclosure defining a furnace chamber, a feed inlet for feeding particulate lead into the chamber, and a discharge outlet for discharging the particulate lead outside the chamber. An array of horizontally ... | 03/27/1990 |
| 4872949 | Process for treatment of drilling mud Used drilling muds containing substantial quantities of organic liquids and water-soluble salts are treated to render them environmentally acceptable for disposal purposes, by drying the muds to evaporate all liquids, aqueous and non-aqueous, preferably i... | 10/10/1989 |
| 4787154 | Suction filter-drier A suction-filter-drier, in particular for isolating and drying a product from suspension, comprising a closed container having an outer wall and a horizontal axis and including a liquid permeable filter positioned in the container and spaced from the oute... | 11/29/1988 |
| 4787323 | Treating sludges and soil materials contaminated with hydrocarbons Oily sludges containing volatile hydrocarbons are mixed with diatomaceous earth or perlite in a system which includes an indirect dryer for vaporizing liquids have a boiling point of less than about 700° F. Dried solids are discharged from the dryer and ... | 11/29/1988 |
| 4770236 | Rotary dryer A paddle type rotary dryer includes a hollow shaft and a plurality of tubular members for interconnecting the interior of a shaft with the interior of each of the paddles. The tubular members extend inwardly into the shaft and prevent the flow of condensa... | 09/13/1988 |
| 4761897 | Screw conveyor type drying apparatus A screw conveyor type drying apparatus has a plurality of hollow drive shafts each having a plurality of hollow feed vanes located on the respective drive shaft along an imaginary helix positioned on the outer peripheral surface of the drive shaft. The dr... | 08/09/1988 |
| 4756092 | Method and apparatus for drying sludge An apparatus and method for removing water from sludge waste material is provided. A layer of sludge is disposed upon an endless screen belt which is in turn dragged across a heated plate such that water in the sludge is evaporated and escapes from the sl... | 07/12/1988 |
| 4753016 | Condensation process and apparatus for water vapor that is under a vacuum A condensation process and apparatus for water vapor under vacuum which is taken preferably from a drying apparatus. The vacuum is produced by a water ring vacuum pump through which water flows, and the water vapor in the liquid ring vacuum pump is conden... | 06/28/1988 |
| 4750274 | Sludge processing Methods for continuous drying of sludges. Large scouring particles are added to a sludge to be dried to create a mixture which is passed through a rotary screw type indirect heat exchanger. The scouring particles are large relative to the particulates of ... | 06/14/1988 |
| 4745691 | Means and methods for drying sludge A sludge drier for removing water from sludge has a plurality of augers functionally interconnected to provide a continuous closed loop path of movement to the sludge through an area for drying. The drying area comprises a heated surface with a means for ... | 05/24/1988 |
| 4734998 | Method and apparatus for dehydrating toxic chemical sludge A method and apparatus for same are provided to dehydrate a toxic chemical waste sludge to a powder by an internal heat source and to deposit said powder into a container, said apparatus receiving said sludge from a holding tank hopper having means for wi... | 04/05/1988 |
| 4727658 | Drying machine A drying machine for the heating and drying of wet, comminuted materials comprises a stationary housing with a rotary, hollow rotor (1) with the admission and conducting away of a heating medium, and where the rotor has a number of annular drying elements... | 03/01/1988 |
| 4711041 | Rotary drier with lifting element A drier for the heating and drying of wet, comminuted organic materials comprises a stationary housing with a revolving, hollow axle or rotor (1) with inlet and outlet for a heating medium, and where the rotor has a number of annular drying elements (2) d... | 12/08/1987 |
| 4636127 | Conveying screw for furnace A countercurrent fluid cooled conveying screw is disclosed. Suitable for furnace applications, the screw includes an outer shaft spatially circumscribing an inner tube. A plurality of hollow, fluid cooled flights are affixed to the outer shaft and are in ... | 01/13/1987 |
| 4589215 | Apparatus for after-treating polyolefin powder Devolatilization of sticky polyolefin powder and deactivation of catalyst residue can be carried out efficiently and sufficiently without the need for accompanying facilities commonly used in the treatment of powdery products in an apparatus comprising (a... | 05/20/1986 |
| 4585463 | Concentrator and feeder of sludge for system to recover resources from sludge A system for recovering resources from sludge in which sludge containing water in the amount of 90 to 70 percent is first supplied to a sludge concentrator through a forced supply equipment where the sludge is concentrated to contain a water content of a ... | 04/29/1986 |
