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| Number | Title | Issue Date |
| 7625113 | Adjustable inlet for recycle asphalt pavement A dryer (10) for an asphalt plant is disclosed. In one embodiment, the dryer (10) includes a generally cylindrical drum (12); a burner (20) having a burner head (22) at least partially disposed within the drum (12); a feeder... | 12/01/2009 |
| 7384181 | Milled asphalt pavement recycling A milled materials processor consists of a self contained, stationary or fully mobile thermal process plant for the thermal processing of 100% recycled asphalt pavement into new hot mix paving material. Mobile units are designed for transportation by vehicle to a jo... | 06/10/2008 |
| 7357562 | Counter-flow drum mixer asphalt plant with two stage mixing zone A counter-flow drum mixer asphalt plant equipped with a secondary feeder for introducing RAP to direct radiant heat of the combustion zone. Heated virgin aggregate and RAP in the combustion zone are delivered through a transition piece to a first stage of the mixing... | 04/15/2008 |
| 7343697 | Low profile flights for use in a drum A rotating apparatus (10) for drying a material (44) is disclosed. In one embodiment, the rotating apparatus (10) includes a generally cylindrical drum (12), a burner (20) having a burner head (22) at least partially dispose... | 03/18/2008 |
| 7279137 | Burners and combustion apparatus for carbon nanomaterial production The invention provides improved burners, combustion apparatus, and methods for carbon nanomaterial production. The burners of the invention provide sooting flames of fuel and oxidizing gases. The condensable products of combustion produced by the burners of this inv... | 10/09/2007 |
| 7258710 | Maritime emissions control system An Advanced Maritime Emissions Control System (AMECS) includes several Exhaust Intake Bonnets (EIBs) of different size and/or shape, an Emissions Capture System (ECS), and an Advanced Maritime Emissions Control Unit (AMECU) mounted on an Unpowered Seagoing Barge (US... | 08/21/2007 |
| 7104788 | Device for purifying and/or decontaminating polyester The invention relates to an apparatus for cleaning and/or decontaminating polyester, in particular polyethylene terephthalate (PET). The apparatus has an at least partially heated rotary tubular furnace to be fed with a mixture of polyester and an alkaline material ... | 09/12/2006 |
| 7080742 | Method and apparatus for improving silicon processing efficiency A method for processing polycrystalline silicon workpieces to form size distributions of polycrystalline silicon pieces suitable for use in a Czochralski-type process includes: (1) preparing a polycrystalline silicon workpiece by a chemical vapor deposition process;... | 07/25/2006 |
| 7044630 | Counter-flow asphalt plant method A method for operating a counter-flow aggregate dryer for an asphalt plant in which primary aggregate materials are introduced into a first end of a horizontally rotating cylinder and travel to the second, discharge end of the cylinder through drying and combustion ... | 05/16/2006 |
| 7033167 | Device for purifying and/or decontaminating polyester The invention relates to an apparatus for cleaning and/or decontaminating polyester, in particular polyethylene terephthalate (PET). The apparatus has an at least partially heated rotary tubular furnace to be fed with a mixture of polyester and an alkaline material ... | 04/25/2006 |
| 6969249 | Aggregate dryer burner with compressed air oil atomizer A swirl-type internal flame recirculation burner apparatus and method as used to fire asphalt plant aggregate dryers, air heaters and calcining kilns and method includes a compressed air oil atomizer assembly. The burning and swirling fuel and primary main combustio... | 11/29/2005 |
| 6918194 | Heating configuration for a drier A heating configuration for a drier, particularly for a laundry drier, has a burner with a burner head, a first heating channel with an inlet opening and an outlet opening, and a second heating channel with an inlet opening and an outlet opening. The cross-sectional... | 07/19/2005 |
| 6883249 | Dryer with insulating flights An insulating flight for a dryer incorporates inner and outer plates with insulation between them. The concave surfaces of the inner and outer plates provide a space for the insulation and allow for thermal expansion without stressing the welds between the inner and... | 04/26/2005 |
| 6832850 | Hot-mix asphalt manufacturing system and method A hot-mix asphalt manufacturing system includes a counter-flow rotary dryer having a combustion chamber, an inlet for dry ingredients, an outlet for hot-mix asphalt, and a pollution control device. The pollution control system includes a pre-filter, a cooling device... | 12/21/2004 |
| 6726736 | System and method for reducing emissions from a dust generation station including a metal cutting station A system and method for reducing the emissions from a dust generation station, such as a metal cutting station, can be easily transported from location to location. The system uses a mobile carrier which supports a separator, such as a baghouse, as well as a telesco... | 04/27/2004 |
| 6685465 | Drum heater with hot gas conduit segments, in particular for asphalt recycling A rotary drum heater for mixing asphalt with a hot gas introduced into the drum by gas burners is disclosed. The drum has an inlet opening for material to enter the drum to be processed and an outlet opening for material to exit. The hot gas is blown into... | 02/03/2004 |
| 6672751 | Counter-flow asphalt plant with combustion zone feed and exhaust gas heater A counter-flow aggregate dryer for an asphalt plant is equipped with a secondary feeder for introducing RAP or virgin materials intermediate the ends of the combustion zone of the dryer. Nonveiling flights in the combustion zone shield material carried th... | 01/06/2004 |
| 6645275 | Apparatus and methods for removing fines from a gas stream A bag house is mounted on a portable trailer and has a tube sheet with depending filter bags in part defining a first plenum for receiving a gas stream with fines and a second plenum for receiving clean gas from the filter bags. The fines are collected in... | 11/11/2003 |
| 6634780 | Asphalt plant having centralized media burner and low fugitive emissions An asphalt plant includes a plurality of asphalt processing components including a first set of components producing volatile emissions and a second set of components requiring process heat. A separate central burner assembly is adapted to supply heat ene... | 10/21/2003 |
| 6478461 | Transportable hot-mix asphalt manufacturing and pollution control system A hot-mix asphalt manufacturing system including treatment of emissions and recirculated gases includes a counter-flow rotary dryer 12 having a combustion chamber 28, an inlet 24 for dry ingredients, an outlet 26 for hot-mix asphalt, and a plate collector... | 11/12/2002 |
| 6425685 | Process for reclaiming salvaged asphalt A process for reclaiming salvaged asphalt includes feeding salvaged asphalt mixed with new sands, stones and tar in a designed proportion into a double-layer drying machine including inner and outer gyroscopic drums; indirectly heating the salvaged asphal... | 07/30/2002 |
| 6340240 | Drum mixer having isolated aggregate transport channels A drum mixer for heating, mixing and drying an aggregate material, such as a mixture of recycled asphaltic pavement and virgin aggregate. The drum mixer includes an inclined drum having a first end and a second end. The drum forms a pre-heating/blending s... | 01/22/2002 |
| 6280073 | Rotary elevator for feeding aggregate from a drum dryer to a mixing drum A rotary aggregate elevator for use in an asphalt plant comprising a rotating dryer drum for drying aggregate having an inlet end and an outlet end, a rotating mixing drum having an inlet end and an outlet end, and further having an inlet for dried aggreg... | 08/28/2001 |
| 6267493 | Drum mixer having a plurality of isolated aggregate transport channels A drum mixer for heating, mixing and drying an aggregate material, such as a mixture of recycled asphaltic pavement and virgin aggregate. The drum mixer includes an inclined drum having a first end and a second end. The drum forms a pre-heating/blending s... | 07/31/2001 |
| 6196710 | Dust distributor for asphalt mixing machine An apparatus for making asphalt paving material includes a dust collection and distribution system by which aggregate dust that is collected during the heating and drying of aggregate may be introduced into the mixing chamber and distributed over a substa... | 03/06/2001 |
| 6164809 | Counter-flow asphalt plant with independently rotatable dryer and mixer A counter-flow asphalt plant with a separately controlled and operated dryer 50 and mixer 52 in which virgin aggregate, recycle material and liquid asphalt are mixed to produce an asphaltic composition. The dryer 50 is rotated by a variable dryer drive 58... | 12/26/2000 |
| 6146007 | Asphalt plant having centralized media burner and low fugitive emissions An asphalt plant including a plurality of asphalt processing components, with a selected first set of the components producing volatile emissions and a selected second set requiring process heat energy. A central burner assembly is connected to the select... | 11/14/2000 |
| 5967065 | Method for disposing of paper in an asphalt plant A method and apparatus for disposing of paper in an asphalt plant. The asphalt plant comprises a container for stone aggregate to be heated, a burner for producing a burner flame to provide thermal energy for heating the stone aggregate in the container, ... | 10/19/1999 |
| 5947720 | Apparatus for preparing materials for road repair Portable-to-site apparatus is operative to produce ready-to-lay traffic-wear surfacing and/or road etc course materials. A drum-like container is supported for axial rotation within insulation walling of a heating chamber allowing front access to one end ... | 09/07/1999 |
| 5902040 | Asphalt plant including flame arrester An asphalt plant includes a rotary dryer, a rotary mixer, a conduit for transferring gas from the mixer to the dryer, and a flame arrester in the conduit adjacent to the dryer to prevent a fire from propagating from the dryer back through the conduit.... | 05/11/1999 |
| 5810471 | Recycled asphalt drum dryer having a low NOx burner An apparatus for the treatment of 100% reclaimed asphaltic pavement (RAP) uses low temperatures and no direct radiation from a burner flame to the RAP. The RAP is first heated in a counter flow drum which is supplied with hot combusting gases generated by... | 09/22/1998 |
| 5772317 | Counterflow drum mixer for making asphaltic concrete and methods of operation The counterflow drum mixer includes an elevated virgin aggregate inlet end and an opposite asphaltic product discharge end. A burner lies intermediate the ends and defines a combustion volume. Shield flights surround the combustion volume defining an annu... | 06/30/1998 |
| 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 |
| 5735223 | Method for disposing of paper in an asphalt plant An asphalt plant for producing asphalt paving, the asphalt plant including: a) a dryer unit for heating stone aggregate, the dryer unit including a container and a burner for producing a flame to provide thermal energy for heating the stone aggregate in t... | 04/07/1998 |
| 5664882 | System for concurrently remediating contaminated soil and producing hot mix asphalt A system for concurrently remediating contaminated soil and producing hot mix asphalt includes a single inclined rotary drum; a burner assembly with a burner head spaced intermediately within the drum and oriented to direct a flame and hot gas stream upst... | 09/09/1997 |
| 5664881 | Counter-flow asphalt plant with multi-stage combustion zone overlapping the mixing zone A drum mixer is provided with a rotatable cylinder in which aggregates, reclaimed asphalt pavement and liquid asphalt are mixed to produce an asphaltic composition. The drum cylinder includes a first region, in which virgin aggregate is heated and dried b... | 09/09/1997 |
| 5634712 | Asphalt plant with gas containment system An asphalt plant is provided with a system for containing noxious and nuisance gases and fumes generated therein. The system includes a substantially air tight casing encircling an slat conveyor of the plant, a substantially air tight elevator chute havin... | 06/03/1997 |
| 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 |
| 5607231 | Method for operating an asphalt plant for both continuous and batch operation A combination continuous/batch asphalt plant includes mechanisms and controls which permit it to be hot-stopped when operating in the continuous mode.... | 03/04/1997 |
| 5607232 | Asphalt plant drum drive The present application discloses an asphalt drum that is supplied with a forward and rearward insulator ring. This ring is typically constructed of a ceramic insulation such as (THERMO-MAX). The insulation is further encased in a steel shell to protect t... | 03/04/1997 |
