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| Number | Title | Issue Date |
| 7155841 | Rotary impinging stream dryer An improved rotary shell or drum dryer (10) is provided having an elongated, horizontally disposed, axially rotatable shell (12) with product and air inlets (14, 18) and an outlet (16) at opposite ends of the shell. Internally, the dryer ... | 01/02/2007 |
| 7070677 | Method and apparatus for treating pulp with filler The present invention relates to a method of and apparatus for treating pulp with filler. The method and apparatus according to the invention are especially well suitable for treating pulp with filler, the mixing of which to the pulp requires simultaneous treatment ... | 07/04/2006 |
| 7003897 | Coffee roaster drum rocker arm roller bearing system A coffee roaster is an oven with a roasting drum. The roasting drum turns on a horizontal axis within the oven to tumble coffee beans while roasting and to even out differences in heating. The roasting drum is fitted with a bearing journal at each end and just fits ... | 02/28/2006 |
| 6363625 | Multiple drum mixing system A drying and mixing plant is provided comprising a tapered inner drum (1) and an oppositely tapered outer drum (4) attached together concentrically and rotated as a unit. A burner (37) directs a hot air stream into the small end (2) of the inner drum (1).... | 04/02/2002 |
| 6324770 | Apparatus for roasting coffee beans and method for controlling roasting temperature An improved apparatus and method for the hot air roasting of coffee beans is provided and includes structure for inhibiting contaminants from entering the hot air stream used in the roasting of coffee beans, structure for obtaining a uniform roast of the ... | 12/04/2001 |
| 6195912 | Apparatus for roasting coffee beans An improved apparatus and method for the hot air roasting of coffee beans is provided and includes structure for inhibiting contaminants from entering the hot air stream used in the roasting of coffee beans, structure for obtaining a uniform roast of the ... | 03/06/2001 |
| 6110430 | Decontamination plant including an indirectly heated desorption system The present invention is a decontamination plant for removing contaminates from contaminated material. The decontamination plant comprises an outer shell including a cavity therein. A drum formed of heat conductive material is rotatably mounted in the cav... | 08/29/2000 |
| 6101736 | Apparatus for drying and processing raw food material A combined spray and rotary drying apparatus includes a spray dryer having a housing defining a spray drying chamber, an annular inlet and an outlet. A burner and atomizer sprayer are provided in the spray drying chamber. The outlet of the spray drying ch... | 08/15/2000 |
| 6061924 | Batch sludge dehydrator A dehydrating apparatus includes a chamber for receiving wet material to be dehydrated. A rotatably-mounted agitator is provided with the chamber. The agitator is adapted to agitate material in the chamber when the agitator rotates in a first direction an... | 05/16/2000 |
| 6058623 | Apparatus and process for removing volatile components from a composition Apparatus and processes for removing volatile components from a composition utilize a dryer having an inlet chamber and a plurality of channels. A flow restriction is disposed immediately upstream of the inlet of each channel with respect to a direction o... | 05/09/2000 |
| 5946815 | Apparatus for roasting legumes An apparatus and method for roasting legumes such as soybeans to enhance their nutritional properties. Raw legumes are introduced to a roaster having an oven section and a steeping section downstream of the oven section. The raw legumes are heated to a se... | 09/07/1999 |
| 5822881 | Method for conditioning refuse A method and apparatus for treating refuse by non-combustibly shrinking plastics in the refuse. The trash is heated to a temperature of at least 250° to 500° for a minimum period of time. A rotatable chamber heats the refuse and transports the refuse fo... | 10/20/1998 |
| 5813138 | Aerated belt conveyor system for conveying hot expanded minerals An aerated belt conveyor system for conveying hot expanded minerals including a longitudinal power driven belt conveyor surrounded by an envelope is described herein. An exhauster creates an air flow in the envelope to aerate expanded mineral material con... | 09/29/1998 |
| 5778558 | Pellet cooling method and apparatus using alternate hot and cool air streams A pellet conditioning device (10) for the cooling and/or drying of preformed discrete pellets (148) is provided which includes an upright pellet-receiving bin (12) with a dual grate assembly (18) therein. The assembly (18) includes a stationary first grat... | 07/14/1998 |
| 5746006 | Single pass rotary dryer A single pass rotary dryer in which heated gas and a moist material is blown through a rotating drum. The drum has inwardly extending flights or vanes which deflect particles of the material back into the gas flow. A flight is oriented at an oblique angle... | 05/05/1998 |
| 5737849 | Recycle moisture evaporation system A recycled asphalt product (RAP) drying apparatus comprising a three-zone counterflow RAP dryer and a duct system to recycle essentially all of the hot gases back through the system. The three-zone RAP dryer has a combustion zone at one end, a drying zone... | 04/14/1998 |
| 5638607 | Coffee roaster A roasting apparatus for coffee beans and other food includes a removable drum on the housing rotatable about a horizontal axis and drive means on the housing for supporting and rotating the drum. The drum has a plurality of internal vanes arranged such t... | 06/17/1997 |
| 5620249 | Compact enclosable asphalt plant A compact, enclosable plant for producing hot mix asphalt from various ingredients, including recycle asphalt pavement ("RAP"). The system includes an inclined rotary drum, a burner assembly for generating a hot gas stream within the drum; a baghouse, exh... | 04/15/1997 |
| 5613306 | Method and apparatus for conditioning refuse A method and apparatus for treating refuse by non-combustibly shrinking polyfoam plastics in the refuse. The trash is heated at a temperature between 250° and 500° for a minimum period of time. A rotatable chamber heats the refuse and transports the ref... | 03/25/1997 |
| 5581902 | Rotary dryer drum A rotary drum dryer is provided which will dissipate heat from the drum and which will allow the drum to expand. The rotary drum dryer includes an elongate cylindrical drum which rotates on a base and a tire assembly mounted to the drum. The tire assembly... | 12/10/1996 |
| 5579587 | Recycle moisture evaporation system A recycled asphalt product (RAP) drying apparatus comprising a three-zone counterflow RAP dryer and a duct system to recycle essentially all of the hot gases back through the system. The three-zone RAP dryer has a combustion zone at one end, a drying zone... | 12/03/1996 |
| 5580242 | Rotary kiln A rotary kiln has a generally cylindrical housing centered on and extending along an axis inclined to the horizontal and having an upper upstream end and a lower downstream end and a drive that rotates the kiln about its axis. Particles to be heat-treated... | 12/03/1996 |
| 5570517 | Slurry dryer An improved slurry dryer of the type having a plurality of beater blades carried on a rotating shaft in a cylindrical housing, the improvement in combination therewith of a plurality of scraper blades mounted on at least one disk carried by the rotating s... | 11/05/1996 |
| 5566469 | Drying apparatus with rotatable housing A thermal vaporization apparatus includes a cylindrical tube having two ends. A base is provided, with the tube being rotatable with respect to the base. A first drive mechanism applies rotating force to the tube. An auger having two ends extends through ... | 10/22/1996 |
| 5561917 | Sludge drier A paper sludge drier includes a somewhat attrition style mill discharging to a horizontal, rotary drum drier. The mill has two mill plates facing each other. As one rotates relative to the other, sludge is broken down as it passes between the plates. The ... | 10/08/1996 |
| 5555639 | Rotary drum dryer An anti-clogging rotary drum dryer for drying stranded material is provided which includes a tubular, rotatable housing having an inlet for receiving drying gas and wet material, as well as first and second, apertured, telescopically interfitted tubes wit... | 09/17/1996 |
| 5525239 | Method for completing the transformation of waste water sludge into spreadable fertilizer and product thereby There is disclosed a heated aeration method of completing the processing of a partially treated mixture of wastewater sludge and alkaline materials to produce a biologically active but pathogenetically clean fertilizer which can safely and easily be sprea... | 06/11/1996 |
| 5454176 | Large diameter wafer dryer with adjustable flighting A dryer for drying material carried along and dried by hot gases including a hollow rotatable drying drum with an inlet and a discharge end, means for driving the drum in rotation and a group of flights projecting into the gas flow stream to break up the ... | 10/03/1995 |
| 5455005 | Material remediation in multi-function heating drum Material remediation apparatus includes a remediation drum through which materials, such as soil contaminated with hydrocarbons, are advanced from a feed end to a discharge end of the drum. A tube extending concentrically from the discharge end of the dru... | 10/03/1995 |
| 5412881 | Method and apparatus for conditioning refuse A method and apparatus for treating refuse by non-combustibly shrinking polyfoam plastics in the refuse. The trash is heated at a temperature between 250° and 500° for a minimum period of time. A rotatable chamber heats the refuse and transports the ref... | 05/09/1995 |
| 5405579 | Decontamination of polluted soils For the thermal treatment of contaminated soils, excavated soil is heated by indirect heat exchange up to 650° C. in a rotary drum in the absence of oxygen. Pollutants are separated from the soil by a desorption medium. Moisture in the soil vaporized to ... | 04/11/1995 |
| 5403395 | Reel for applying topical substances to base products An arrangement for the application of topical substances to base products. A rotatable star-shaped reel structure is rotated, in which a flowable base product is tumbled while being coated with the topical substance so as to ensure an appropriate uniform ... | 04/04/1995 |
| 5393501 | Material remediation in multi-function heating drum Material remediation apparatus includes a remediation drum through which materials, such as soil contaminated with hydrocarbons, are advanced from a feed end to a discharge end of the drum. A tube extending concentrically from the discharge end of the dru... | 02/28/1995 |
| 5386764 | Grain roaster/cooler with preheater A grain roaster/cooler includes a fuel saving preheater and a roasting drum that rotates within a stationary housing. Heat radiated from the drum is captured in the form of hot air trapped in an air gap between the drum and the housing. A fan draws from t... | 02/07/1995 |
| 5285581 | Method for drying waste materials A dryer assembly dries waste materials to a predetermined moisture level. The dryer includes a drum having an inlet where waste materials and hot gasses are simultaneously introduced, and an outlet where dried materials and hot vapors are transferred out ... | 02/15/1994 |
| 5283961 | Tramp removal system An apparatus for collecting foreign materials such as rocks and tramp iron from material fed to a rotary dryer, wherein the material is dropped into the dryer at an intake end for tumbling within the dryer in a stream of drying gas flowing axially through... | 02/08/1994 |
| 5261738 | Asphalt drum mixer with bypass for controlling the temperature of the exhaust gas A drum mixer which is useful in the continuous production of asphalt paving composition. The mixer includes a hollow drum which is mounted for rotation about an inclined axis, and the aggregate is introduced into the upper end of the drum so that as the d... | 11/16/1993 |
| 5207009 | Method and apparatus for increasing dehydrator efficiency A dryer consists of a horizontal drum rotated about its horizontal axis, containing flighting around its periphery, and coupled with a heat source, all of which is well known in the prior art. The dryer is open at only one end and provides an inner tubula... | 05/04/1993 |
| 5203693 | Rotary drum dryer having internal flights A rotary drum dryer is disclosed which is useful in the production of asphalt paving composition. The drum incorporates a burner which defines a combustion zone, and a novel dam and flight construction is mounted to the interior of the drum so that the fl... | 04/20/1993 |
| 5197204 | Rotary dryer and associated drying plant A rotary dryer (1) for the drying of, for example, biological sludge, comprises a rotatable drum having rake elements (6) with openings for the passage of sludge disposed on the inner side of the drum casing. A drying plant with such a dryer further comprises ... | 03/30/1993 |
