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| Number | Title | Issue Date |
| 8104621 | Method for grading a particulate water-absorbing resin Process for classifying a particulate water-absorbing resin using a sieving apparatus at a reduced pressure compared with the ambient pressure and a sieving apparatus for classifying a particulate water-absorbing resin at a reduced pressure compared with the ambient... | 01/31/2012 |
| 7331469 | Vibratory separator with automatically adjustable beach A vibratory separator having a basket for supporting screen apparatus for treating material, the basket pivotably mounted on a base, vibratory apparatus connected to the basket for vibrating the basket, the material forming a pool on the screen apparatus, and a beac... | 02/19/2008 |
| 7278540 | Adjustable basket vibratory separator A vibratory separator having a base, a basket movably mounted on the base and for supporting screen apparatus for treating material introduced into the vibratory separator, the basket on a base and pivotable with respect thereto, vibratory apparatus connected to the... | 10/09/2007 |
| 7017755 | Large coating lump removing device Rear ends of pushing rods 40 are axially connected to a support base 50, which is movably engaged with guide rails 60. A drive unit 70 is disposed to rotatably move wire belts 74 between wheels 73 and 71 at longitudin... | 03/28/2006 |
| 6955796 | Process for total environmental remediation of a phosphorus contaminated site A process is disclosed for recovering elemental phosphorus from an aqueous sludge and converting the residue into non-hazardous waste. The sludge is separated into (1) a slurry of water containing suspended phosphorus and dirt particles and (2) coarse solids. A floc... | 10/18/2005 |
| 6929393 | Asphalt production plant An asphalt production plant includes an asphalt binder storage tank, a mixer for mixing asphalt binder and aggregate materials, an asphalt binder pumping system for conveying asphalt binder to the mixer and an asphalt binder metering system for controlling the rate ... | 08/16/2005 |
| 6907994 | Process for converting wet fly ash into dry useful industrial products There is provided a process for converting wet fly ash into a useful product such as cement replacement or industrial filler. A first amount of wet fly ash is provided. The wet fly ash is fed into a mixing chamber. An amount of aggregate, such as stone, is provided.... | 06/21/2005 |
| 6820749 | Large, stationary, modular aggregate processing plant and method of manufacturing and installing same A method of manufacturing a large stationary, aggregate processing screening tower by fabricating weldment modules and preassembling them with aggregate processing equipment internal within the weldment modules, transporting the preassembled weldment modules to a fi... | 11/23/2004 |
| 6730161 | Treatment of fly ash A finely ground powder comprising a mixture of fly ash and a compound selected from the group consisting of alkali and alkaline earth metal salts, alkali and alkaline earth metal oxides, and metakaolinite. Preferably, the amount of said compound is 0.4 to 1% by weig... | 05/04/2004 |
| 6601708 | Apparatus for processing PVA A process and apparatus for processing polyvinylacetate and other similar ingredients of a gum base or chewing gum product are disclosed. The ingredient materials are separated into individual pieces by a lump breaker and conveyed through a pneumatic conv... | 08/05/2003 |
| 6575303 | Processing a product including aggregate materials and a volatile component A system for controlling the operation of a first item of equipment for processing materials in connection with the production of a product which includes aggregate materials and a volatile component includes an oven, a gradation assembly having a plurali... | 06/10/2003 |
| 6538416 | Border gateway reservation protocol for tree-based aggregation of inter-domain reservations A reservation is created within a network by sending a stateless probe from a source node toward a destination node. The stateless probe determines a reservation path between the source node and the destination node via intermediate routers in the network... | 03/25/2003 |
| 6446812 | Removal of elemental phosphorus from mixtures with other solids Disclosed is a separator for separating a meltable solid from a mixture with other solids. The separator has a tank for holding a fluid; a container at least partially inside the tank, made at least in part of a screen through which the fluid can pass and... | 09/10/2002 |
| 6439391 | Vibratory separator with material heater A vibratory separator apparatus for separating components from a fluid material stream fed to the vibratory separator apparatus, the vibratory separator apparatus, in certain aspects, having separator apparatus for separating components of the fluid mater... | 08/27/2002 |
| 6164455 | Process for classifying particulate hydrophilic polymer and sieving device The present invention provides a process for classifying a particulate hydrophilic polymer and a sieving device, which can carry out a classification in a small separation particle diameter with high efficiency and exhibit classification ability inherent ... | 12/26/2000 |
| 5556445 | Steam treatment of municipal solid waste A method for treating solid municipal waste material including placing solid municipal waste in a rotating chamber having an interior at ambient pressure, heating the waste at ambient pressure, and controlling the moisture content of the waste.... | 09/17/1996 |
| 5318184 | Sludge drying system A sludge drying system using exhaust air from a furnace in a direct heat, rotary drum dryer to simultaneously dry and pelletize the sludge. The dried sludge particles exiting the dryer is entrained in the exhaust air. The sludge particles are separated fr... | 06/07/1994 |
| 5248042 | Resilient wire-wrapped, and adjustably tensioned screen drum with drum overload-preventing feedback control A mobile screening apparatus includes a horizontal rotary drum preferably fed by underflow from a prescreening device that is reversible endless belt of screening grizzly bars. The belt reverses for expelling oversize material caught between bars. Force n... | 09/28/1993 |
| 5098586 | Method for the gentle separation of granulate and water A method for the separation of granulate and water in an after-treatment section following a granulator in which a vibrating screen receives the water and granulate mixture. In order to obtain low residual moisture without subsequent drying, the granulate... | 03/24/1992 |
| 5059310 | Analytical sieve apparatus A vertical set of sieves receives the particulate material from a vibrating trough conveyor above the set and is vibrated by an agitator on the machine frame. The sieves are spread apart and then tilted to dump the collected particles into respective funn... | 10/22/1991 |
| 4955425 | Casting handling apparatus Apparatus for non-impact handling of foundry castings utilizes a sand pervious basket to receive a sand mold and casting and to segregate the casting from the mold. A turntable assembly lifts and translates the basket to a secondary conveyor which removes... | 09/11/1990 |
| 4680112 | Apparatus for the liquid treatment of solids An apparatus for treating solids with a liquid at elevated or ambient temperatures comprises an assembly of vertical Pot (1) sealed by Lid (3) in which Pot (1) contains the liquid and horizontal low level stirring means (6) inducing a liquid vortex and co... | 07/14/1987 |
| 4635860 | Rotative grizzly for oil sand separation A rotating grizzly having a downwardly slanting axis of rotation for reducing the size of agglomerated mineral particles comprising a rotatable framework made up from a series of spaced axial baffles interconnected by a series of parallel spaced bars wher... | 01/13/1987 |
| 4585354 | Device for preparing roadway paving materials An elongated drum rotatable about its horizontal longitudinal axis is surrounded by a sequence of cylindrical screens having different size mesh openings. A burner is located at one end of the drum. A feeder delivers stone chips into the end of the drum o... | 04/29/1986 |
| 4543180 | Device for separating coarse and fine particles from ultrafines A device for separating fine articles as sand from a sludge containing ultrafine articles comprises a continuously rotated substantially horizontal drum having a helical web at the peripheral inside thereof. The mass flow to be separated is deposited in t... | 09/24/1985 |
| 4526679 | Removal of low melting particles from unground coal liquefaction residue A mixture of low melting particles and high melting particles is heated to a temperature above the melting point of the low melting particles and below the melting point of the high melting particles thereby melting the low melting particles and forming a... | 07/02/1985 |
| 4443332 | Cross flow solid-to-solid heat transfer apparatus Apparatus for transferring heat between solid particles includes placing a first granular material composed of particles of a first size on the upper side of a downwardly sloping vibratory screen. The openings in the screen are sufficiently small to preve... | 04/17/1984 |
| 4415444 | Air cooling system for a vibratory sand reclaiming apparatus Cooling air is introduced into the vibrating chamber of a sand reclaiming apparatus. A plurality of hollow inverted V-shaped ribs, extending longitudinally along the floor of the chamber distribute the air from an external source over the bottom region of... | 11/15/1983 |
| 4359381 | Asphalt recycling apparatus An apparatus for regenerating used mixtures for road pavement including an asphalt concrete mixture and a cement concrete mixture is provided with a first vibration sieve, conveyer, passage, roof, transferring means, guide means such as a V-shape plate an... | 11/16/1982 |
| 4257168 | Method of and apparatus for drying particulate material An apparatus for and method of drying agglomerated moist particulate material, the particles of which when dry have a very low density. Drying is effected by supporting the material on a screen within a retainer, and by applying heat to the material in co... | 03/24/1981 |
| 4211274 | Equipment for cooling and separation of castings and moulding sand An apparatus for separating castings from moulding sand is provided with a container revolving around the longitudinal horizontal or near horizontal axis. The side surface of the container is provided with suitable slots ensuring an inflow of air into thi... | 07/08/1980 |
| 4148724 | Wedge-type tensioning rail construction for electrically heated screens A rail construction for mounting and tensioning an electrically heated screen on and between a pair of longitudinally extending, spaced frame members. The rail preferably is formed as an aluminum extrusion having a relatively large metal mass in cross sec... | 04/10/1979 |
| 4100059 | Asphalt recycle system Steam is injected into water to regenerate asphalt waste which is heated in the water to a predetermined temperature. Such heated asphalt waste is mechanically subdivided in the water into aggregate grains each having its surface coated with a thin asphal... | 07/11/1978 |
| 3989473 | Method for pelleting carbon black Apparatus and method for treating particulate material by selectively separating the particles on the basis of size. There is disclosed a process for pelleting a particulate material such as carbon black wherein wet pelleting material is classified and on... | 11/02/1976 |
| 3942644 | Apparatus for cooling castings and for cooling and drying moulding sand An apparatus for cooling castings and cooling and drying moulding sand, comprising a horizontal drum rotatable about its longitudinal axis and having an inlet opening for castings and casting moulds at one end and an outlet opening for castings at the oth... | 03/09/1976 |
