With Means For In Situ Material Preparation, E.g., Mixing Patents (Class 404/92)
  • Patent number: 9598825
    Abstract: A device for working ground surfaces or roadways including a machine frame and a working drum in a drum housing arranged on said machine frame, where no less than one spraying device extending parallel to the working drum and featuring several outlet nozzles for spraying agents arranged next to one another and directed towards the working drum is arranged on the drum housing. Wherein each outlet nozzle includes a drivable closing mechanism with a closing element which, in an open position, fully uncovers the nozzle channel of the outlet nozzle. In a closed position, closes the nozzle channel. Such that the following functions are achieved: that a controller drives the closing mechanisms, with the outlet nozzles and the related closing elements being adapted to one another in such a fashion that the flow cross-section in the outlet nozzle is variable in accordance with the position of the closing element on a specified path between the open position and closed position.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: March 21, 2017
    Assignee: Wirtgen GmbH
    Inventors: Christoph Menzenbach, Bernd Walterscheid, Cyrus Barimani, Günter Hähn
  • Patent number: 9284694
    Abstract: Provided herein are roadways containing polyurethane materials. A roadway includes a base layer of a compacted in situ material and/or a wear layer disposed on the base layer. One or both of these layers may include the polyurethane material to bind other components in the layers and to form more robust and durable roadway structures capable of withstanding operating loads of the roadway. In some embodiments, the polyurethane material is added to the wear layer by mixing in situ soil and/or foreign aggregate with polyurethane material or by dispensing the polyurethane material over the existing partially formed wear layer. The base layer may or may not include a polyurethane material. The type, concentration, distribution, and processing of the polyurethane material in the wear layer may be the same or different than that in the base layer.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: March 15, 2016
    Assignee: Technisoil Industrial LLC
    Inventor: Sean Somers Weaver
  • Patent number: 9028168
    Abstract: A concrete finishing machine includes a mobile frame supported above the slab on front and rear wheels with at least one screed roller and a plurality of vibrators are suspended from the frame between the front and rear wheels. The front and rear wheels are rotatable at least ninety degrees between a longitudinally directed traveling orientation and a laterally directed concrete finishing orientation. The front and rear wheels are driven and steerable so that the mobile frame may travel longitudinally down a lane of a road, and then upon pivoting of the wheels, move laterally over a hole in an adjacent lane having uncured concrete to be finished by the finishing machine.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: May 12, 2015
    Inventor: Ronald A. Knapp
  • Patent number: 8931975
    Abstract: A mobile asphalt production machine which includes support for different asphalt concrete recipes including a plurality of aggregate storage bins which work on combination with a fines or sands storage bin. The individual bins have separated feeding chutes to the mixing trough. The machinery also includes a removable pan at the elevator transfer station to accommodate changeover from one grade aggregate material to another. Further, a controller is provided which delivers appropriate ingredients while also measuring process parameters to adjust various input requirements. Further, a dust and particulate recapturing system is provided which recycles particulate matter back into the ribbon of mixed material with a binding agent.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: January 13, 2015
    Assignee: Hot Mix Mobile, LLC
    Inventors: Jerry L. Warlow, David E. Pierce, Boris Fridman
  • Publication number: 20140363231
    Abstract: A method of paving a roadway that includes a first lane and a second lane adjacent the first lane includes applying, a first asphalt layer over the first lane of the roadway. The first asphalt layer includes a first side edge defining a portion of a joint between the first asphalt layer and a second asphalt layer. The method also includes smoothing the first asphalt layer on the first lane of the roadway, applying an additive on the first side edge to soften the first side edge, and applying the second asphalt layer over the second lane of the roadway. The second asphalt layer includes a second side edge abutting the first side edge such that the second side edge mixes with the first side edge. The first side edge and the second side edge form the joint between the first asphalt layer and the second asphalt layer.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 11, 2014
    Inventor: John C. Bartoszek
  • Patent number: 8899870
    Abstract: A surface preparation system, such as for surface milling, may comprise a degradation drum comprising a plurality of picks disposed on a vehicle to degrade a surface. A jet system may clean the surface with fluid after degradation. A roller comprising an absorbent material may then absorb fluid left on the surface.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: December 2, 2014
    Inventor: David R. Hall
  • Patent number: 8851792
    Abstract: A rotary mixer herein includes: a rotor chamber configured to receive a first surface and produce a reclaimed surface, the rotor chamber including: a front door, a rear door, and a rotor; a particle size detector configured to detect a particle size of the reclaimed surface; and an electronic control module (ECM) electronically coupled to the rotor chamber and the particle sensor, the ECM configured to: receive a particle size from the particle sensor, compare the detected particle size to a desired particle size, adjust the degree of pulverization of the reclaimed surface according to the difference between the detected particle size and the desired particle size.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: October 7, 2014
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Brian J. Schlenker, Brent P. Bachmeier, Jason W. Muir, Mario J. Souraty, Maria L. Biberdorf
  • Patent number: 8807868
    Abstract: A machine for receiving a ground layer, breaking up the ground layer into pieces, and producing a reclaimed layer incorporating the pieces, the machine including: a frame; a rotor coupled to the frame; a mixing chamber coupled to the frame and at least partially surrounding the rotor, the mixing chamber having an interior surface; a first member coupled to the interior surface and having an edge, the first member being moveable between a first position and a second position; and a gap length between the edge and the rotor, the gap length including: a first length when the first member is in the first position; and a second length when the first member is in the second position, the second length being greater than the first length.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: August 19, 2014
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Brian J. Schlenker, Jason W. Muir
  • Patent number: 8794869
    Abstract: A rotary mixer herein includes: a rotor chamber configured to receive a first surface and produce a reclaimed surface, the rotor chamber including: a front door, a rear door, and a rotor; a particle size detector configured to detect a particle size of the reclaimed surface; and an electronic control module (ECM) electronically coupled to the rotor chamber and the particle sensor, the ECM configured to: receive a particle size from the particle sensor, compare the detected particle size to a desired particle size, adjust the degree of pulverization of the reclaimed surface according to the difference between the detected particle size and the desired particle size.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 5, 2014
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Brian J. Schlenker, Brent P. Bachmeier, Jason W. Muir, Mario J. Souraty, Maria L. Biberdorf
  • Publication number: 20140010592
    Abstract: A thermic torpedo for preparing and delivering reinstatement materials has an internal chamber defining at least one compartment for containing graded aggregate and a second compartment for containing a stabilising agent, an external skin for insulating the contents of said internal chamber, a cap or lid for securely containing the contents of the torpedo in which is located at least one telescopic probe which can be driven through the compartments to heat and/or mix the contents thereof and at least one aperture through which the reinstatement materials may be expelled for delivery to a work site.
    Type: Application
    Filed: October 16, 2011
    Publication date: January 9, 2014
    Inventor: James Wright
  • Patent number: 8545128
    Abstract: A desegregation apparatus that desegregates a stream of HMA that includes particles of varying size includes a desegregation hopper, which houses an auger assembly. A series of counter-handed augers is mounted on a shaft disposed within the hopper. Open sections are disposed between adjacent auger sections and above openings in the bottom surface of the hopper.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: October 1, 2013
    Assignee: Weiler, Inc.
    Inventor: Patrick J. Weiler
  • Publication number: 20130058719
    Abstract: A mobile asphalt production machine which includes support for different asphalt concrete recipes including a plurality of aggregate storage bins which work on combination with a fines or sands storage bin. The individual bins have separated feeding chutes to the mixing trough. The machinery also includes a removable pan at the elevator transfer station to accommodate changeover from one grade aggregate material to another. Further, a controller is provided which delivers appropriate ingredients while also measuring process parameters to adjust various input requirements. Further, a dust and particulate recapturing system is provided which recycles particulate matter back into the ribbon of mixed material with a binding agent.
    Type: Application
    Filed: June 6, 2011
    Publication date: March 7, 2013
    Applicant: HOT MIX MOBILE, LLC
    Inventors: Jerry L. Warlow, David E. Pierce, Boris Fridman
  • Patent number: 8342773
    Abstract: A paving apparatus is arranged to pave a supporting surface by casting individual paving stones on site on a mobile frame and placing the cast paving stones directly onto the supporting surface in an uncured state adjacent previously placed paving stones as the apparatus is displaced along the supporting surface. Molds are supported by a conveying mechanism of the paving apparatus for movement between a casting position in alignment with a hopper dispensing castable material into the molds and a placing position in which the uncured paving stones are dispensed from the mold directly onto the supporting surface to be paved.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: January 1, 2013
    Inventor: Radovan Kropacek
  • Publication number: 20120288329
    Abstract: A desegregation apparatus that desegregates a stream of HMA that includes particles of varying size includes a desegregation hopper, which houses an auger assembly. A series of counter-handed augers is mounted on a shaft disposed within the hopper. Open sections are disposed between adjacent auger sections and above openings in the bottom surface of the hopper.
    Type: Application
    Filed: May 12, 2011
    Publication date: November 15, 2012
    Inventor: Patrick J. Weiler
  • Patent number: 7976239
    Abstract: In one aspect of the present invention, the present invention is a system for removing aggregate from a paved surface. The system includes a motorized vehicle with a degradation drum that is connected to the underside of the vehicle. The degradation drum is enclosed by a milling chamber. The milling chamber is defined by having a plurality of plates, including a moldboard positioned rearward of the milling drum. The moldboard comprises an end that is disposed opposite the underside. The end comprises a section that is proximate the milling drum.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: July 12, 2011
    Inventors: David R. Hall, Jeff Jepson, Thomas Morris, Joseph Nielson, Ronald B. Crockett, Gary Peterson, David Wahlquist
  • Patent number: 7785033
    Abstract: An apparatus and method for fragmenting and re-mixing agglomerated pieces of rubberized asphalt prior to applying same to a road surface. Agglomerated pieces and rubberized asphalt material are delivered to the upper portion of a housing. In a first embodiment, an auger and tine assembly having a common drive shaft, is mounted for rotation within the housing. The assembly includes first and second auger sections, mounted along the shaft in spaced relation and having converging, opposite handedness. A rotating tine section is positioned between the auger sections. A fixed tine section is mounted in the housing in interdigitized relation with the rotating tine section. In a second embodiment, the entire drive shaft includes a rotating tine section, and a corresponding interdigitized fixed tine section is provided within the housing. Passing through apertures defined by the fixed and rotating tine sections, agglomerated pieces are fragmented and re-mixed with the other material.
    Type: Grant
    Filed: November 27, 2007
    Date of Patent: August 31, 2010
    Inventor: Robert L. Boyd
  • Publication number: 20100209189
    Abstract: The invention relates to a stabilizer or recycler which has a rotor housing 8, in which a milling/mixing rotor 9 is arranged, and a unit 13 for discharging binder for soil or base material stabilization. In the civil engineering machine according to the invention, at least part of the supply container 14 for the binder, and in particular the part thereof which is of larger volume, is arranged to the rear of the milling/mixing rotor 9 in the direction of working. The center of gravity A of the supply container 14 is preferably arranged to the rear of the axis of rotation 10 of the milling/mixing rotor 9 in the direction of working. This special way in which the supply container is arranged gives an optimum weight distribution. Whereas the supply container 14, which is relatively heavy when filled with binder, is situated mainly to the rear of the milling/mixing rotor 9, the drive unit 12 of the civil engineering machine can be arranged ahead of the milling/mixing rotor.
    Type: Application
    Filed: February 3, 2010
    Publication date: August 19, 2010
    Applicant: WIRTGEN GMBH
    Inventors: Christoph Menzenbach, Heiko Bohme, Cyrus Barimani, Gunter Hahn
  • Patent number: 7767259
    Abstract: Methods of manufacturing hot mix on site utilizing a composition of discrete substances that are capable of being mixed together to form a composite material are disclosed. The composition includes a plurality of pellets of a tacky, deformable material at an ambient temperature dispersed within a flowable fine material. Stone aggregate is placed in a mixing chamber that has been moved within proximity of the location where the hot mix is to be used. At least a portion of the stone aggregate is heated in the mixing chamber to a temperature sufficient to soften the pellets of the tacky, deformable material. The composition of discrete substances is added into the mixing chamber. The mixture of the composition of discrete substances and the stone aggregate is agitated until the pellets of a tacky, deformable material soften and uniformly coat the stone aggregate.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: August 3, 2010
    Assignee: NiTech Corporation
    Inventor: Steve A. Fox
  • Publication number: 20100011841
    Abstract: An apparatus for testing the workability of asphalt mixes includes a frame, a motor operably attached to the frame for rotating a turntable, a container attachable to the turntable, and a paddle for mixing a first asphalt mixture in the container. A torque meter is operably attachable to the frame and to the paddle to measure in real-time the torque applied to the paddle shaft, and a temperature sensor measures the temperature in real-time of the first asphalt mixture in the container. In one embodiment the paddle has a vertical shaft, a plurality of laterally-extending elongated arms attached at first ends to the shaft and at distal second ends to angled plates. In another embodiment, a display and a processor are provided for automatically displaying on the display in real-time a plot of the torque verses time and the temperature verses time for the measured torque and temperature while mixing the asphalt mixture.
    Type: Application
    Filed: July 15, 2009
    Publication date: January 21, 2010
    Inventors: Walaa S. MOGAWER, Alexander J. AUSTERMAN
  • Publication number: 20090136295
    Abstract: An apparatus and method for fragmenting and re-mixing agglomerated pieces of rubberized asphalt prior to applying same to a road surface. Agglomerated pieces and rubberized asphalt material are delivered to the upper portion of a housing. In a first embodiment, an auger and tine assembly having a common drive shaft, is mounted for rotation within the housing. The assembly includes first and second auger sections, mounted along the shaft in spaced relation and having converging, opposite handedness. A rotating tine section is positioned between the auger sections. A fixed tine section is mounted in the housing in interdigitized relation with the rotating tine section. In a second embodiment, the entire drive shaft includes a rotating tine section, and a corresponding interdigitized fixed tine section is provided within the housing. Passing through apertures defined by the fixed and rotating tine sections, agglomerated pieces are fragmented and re-mixed with the other material.
    Type: Application
    Filed: November 27, 2007
    Publication date: May 28, 2009
    Inventor: Robert L. Boyd
  • Patent number: 7507053
    Abstract: A system for removing material from a surface comprises at least one conduit that also has an outlet at a distal end. A straight stream nozzle may be disposed within the outlet and the conduit. Another end of the conduit is fixed with respect to the vehicle and is in communication with a fluid source. A cam assembly may be in mechanical communication with the conduit and be adapted to provide an oscillation motion at the distal end within the conduit's elastic range. The straight stream nozzle may be adapted to direct a stream of fluid to a removal mechanism.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: March 24, 2009
    Inventor: David R. Hall
  • Patent number: 7500803
    Abstract: A ground working device for liquid treated roads is formed from a mobile main frame, a sub-frame, plural discs mounted for rotation on the sub-frame about an axis that extends transversely under the sub-frame; and a set of tines mounted on each disc in ground contacting position. The tines efficiently lift the ground surface material while reducing the amount to which the liquid treated ground mixture clumps on the tines. Each tine in each set of tines has a perpendicular base that extends perpendicularly to the disc on which the respective tine is mounted. The sub-frame is retractably mounted on the main frame.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: March 10, 2009
    Assignee: Road Badger Inc.
    Inventors: Ray W. Gillard, Garett T. Schmidt
  • Publication number: 20090052988
    Abstract: An apparatus for recycling asphalt pieces obtained from the repairing work site, to repair rapidly potholes and cracks in roadway and at a minimum cost, and of which it is possible to produce a usable hot asphalt at a temperature about ?12 to ?15 degrees Celsius.
    Type: Application
    Filed: August 20, 2007
    Publication date: February 26, 2009
    Inventor: Germain Belley
  • Publication number: 20080246328
    Abstract: In an automotive machine (1) for producing carriageways by stabilizing insufficiently stable soils or by recycling road surfaces, with a machine chassis (4) supported by a running gear (2), a working drum (20) mounted to pivot in relation to the machine chassis (4), the shaft of which is mounted in pivoting arms (42) and runs transversely to the direction of travel, a cover (28) surrounding the working drum (20), a combustion engine (32) supported by the machine chassis with at least one output shaft (34) for the drive power required for driving the working drum, whereby at least one mechanical power transmission device (36) transfers the drive power from the output shaft (34) to the working drum (20), it is intended that the combustion engine (32) is arranged in a fixed manner at the machine chassis (4) between the pivoting arms (42) and that the at least one mechanical power transmission device (36), together with the working drum (20) mounted in the pivoting arms, can pivot about the axis of the output sha
    Type: Application
    Filed: November 10, 2004
    Publication date: October 9, 2008
    Inventors: Thomas Mannebach, Peter Busley, Karsten Buhr, Guenter Haehn
  • Patent number: 7413376
    Abstract: A work machine for removing asphalt from a roadway is disclosed. The work machine includes a removal device configured to remove asphalt from a roadway surface, and a grinding device configured to fracture the removed asphalt. The work machine also includes a funnel-shaped ramp configured to guide the removed asphalt from the removal device to the grinding device. A width of the removal device is larger than a width of the grinding device, and the funnel-shaped ramp is configured to fold the outer edges of the removed asphalt over itself before the removed asphalt reaches the grinding device.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: August 19, 2008
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Dean Rogers Potts, Andrew Harold Tilstra, Jeffrey A. Renard
  • Patent number: 7357595
    Abstract: Portland Cement Concrete with steel reinforcement mats or rods used in airport runways, highways, and other objects need to have the cement broken up for recycling or disposal and the steel mat reused or the steel recycled. The pavement removal machine lifts the concrete off a roadbed and places it on an anvil. A hammer then cracks the concrete and breaks it into small pieces, which fall away from the reinforcing steel. The concrete and the steel are then recycled. The pavement removal machine has legs which are moveable between a road working position and a transport position and can translate the frame of the machine up and down. The hammers can be gravity drop or powered. The steel can be cut into sections as the pavement is continuously torn up at a rate of about 1 lane mile per day.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: April 15, 2008
    Assignee: Road Processing Resources, Inc.
    Inventor: Deems M. Pfaff
  • Patent number: 7316520
    Abstract: An apparatus for use in shearing paving material applied to a surface is provided. This apparatus includes a blade for shearing the asphalt mixture to a desired thickness, cylinders for raising and lowering the blade in response to elevational changes in the surface, at least one signal generator associated with each cylinder and adapted to produce a signal indicative of the elevation of the surface, and at least one signal receiver associated with each signal generator. This blade apparatus is coupled with a prime mover. The receiver is operable to activate the cylinders in response to a signal received from the generator. The blade is raised and lowered as the elevation of the surface changes in response to signals emanating from the generator allowing surface level variations to be evened out while paving.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: January 8, 2008
    Assignee: SemMaterials, L.P.
    Inventor: Bill Grubba
  • Patent number: 7108450
    Abstract: A drag box for use in applying cold mix asphalt paving material to a surface includes a pugmill for distributing the cold mix over the surface, a strike blade for shearing the asphalt mixture to a desired thickness, cylinders for raising and lowering the strike blade in response to elevational changes in the surface, at least one signal generator associated with each cylinder and adapted to produce a signal indicative of the elevation of the surface, and at least one signal receiver associated with each signal generator. The drag box is pulled behind a prime mover but preferably is not rigidly coupled with the prime mover. The blade is raised and lowered in response to signals emanating from the generator as the elevation of the surface changes, allowing surface level variations to be evened out while paving.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: September 19, 2006
    Assignee: SemMaterials, L.P.
    Inventor: Bill Grubba
  • Patent number: 7104723
    Abstract: A screed assembly apparatus for loose or plastic materials such as placed and/or poured, uncured concrete previously placed on the ground or another support surface, includes a screed frame, and mounted thereon, a striker for engaging and spreading the materials and a rotatable auger for moving the material longitudinally along the screed frame. The auger provides a pair of intertwined spiral flight coils. The striker is spaced to one side of the auger and in parallel thereto. An auger mounting means and a motive power means are engaged for rotating the auger to remove excess portions of the concrete from the pour.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: September 12, 2006
    Inventor: Ned W. Holmes
  • Patent number: 7069677
    Abstract: A method for producing a ready-mix soil material includes the steps of: (a) crushing earth material excavated from a work site; (b) sieving the earth material after crushing so as to obtain raw soil material; and (c) mixing metered amounts of the raw soil material and at least one strength-enhancing additive in an automated manner so as to obtain the ready-mix soil material.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: July 4, 2006
    Inventor: Cheng-Feng Chang
  • Patent number: 6971783
    Abstract: Site-won spoil from an excavation which is a predominantly non-granular cohesive material can be converted into a material suitable for immediate use as a backfill material by a process of mechanically mixing the spoil with between 0 and 30% by weight or volume of added granular material and between 1 and 10% by weight or volume of a powder material comprising 1–5% lime or with the addition of 1–5% cement and/or 1–5% pulverized fly ash. The process works well with clay soils and the range of suitable spoil can be extended by adding cement to the powder material. The proportions in the mixture are chosen in dependence on the clay and moisture content of the spoil. A machine which can be set to mix the ingredients and water in the correct proportions on site is also described.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: December 6, 2005
    Assignee: Keanes Limited
    Inventor: Frank Owen
  • Patent number: 6887013
    Abstract: A device for treating soils or road surfaces includes a machine frame (1) carrying a working roll (4) in a working roll housing (8) defining a working space (6). The roll housing (8) is provided with a spraying mechanism (10) for binder or water having at least one outlet nozzle (12) opening directly into the working space (6). A controllable closing device (18) has a closing element (22) which, in an open position, unblocks the outlet nozzle (12) and in a first closed position, closes the outlet nozzle (12). The closing device (18) is capable of triggering an additional movement of the closing element (22) beyond the first closing position such that at a second closed position, material accumulations in and/or beyond the outlet nozzle (12) are removed.
    Type: Grant
    Filed: September 5, 2003
    Date of Patent: May 3, 2005
    Assignee: Wirtgen GmbH
    Inventors: Herbert Ley, Peter Busley, Walter Grueber
  • Patent number: 6874973
    Abstract: A machine body (1) having a traveling equipment (2) is provided with a mixer (3), a soil hopper (8), a raw soil conveying device (7) and a modified soil conveying device (10). Further, a soil conditioner supply device comprising a liquid supplying means (11), a liquid tank (12) and a liquid ejecting means (13) is provided for the machine body (1), and the liquid ejecting member (13) is attached to a portion close to an input port of the mixer (3), so that the liquid soil conditioner is ejected and supplied on the raw soil on the way of being conveyed by the raw soil conveying device (7). Since the soil conditioner is liquid, the liquid tank (12) and the liquid supplying means (11) can be formed to provide an arbitrary shape and can be mounted to an arbitrary portion with respect to the liquid ejecting means or an arbitrary portion apart from the liquid ejecting means.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: April 5, 2005
    Assignee: Komatsu Ltd.
    Inventor: Yasuhiro Yoshida
  • Patent number: 6846354
    Abstract: The invention describes a process for preparing a warm mix asphalt composition by mixing an aggregate grain material with a soft binder, and adding a hard binder to the mixed aggregate grain material. The hard binder is foamed in a foaming process before it is introduced to the mixed grained aggregate material. A system for preparing the warm mix asphalt composition comprising a drying drum for heating and drying the aggregate component, a mixing mill for mixing the asphalt components and a mix storage silo, where the system also includes foam production facilities for foaming the hard binder before introduction to the mixing mill, is also disclosed.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: January 25, 2005
    Assignee: Kolo Veidekke A.S.
    Inventors: Olle R. Larsen, Carl . Robertus
  • Patent number: 6802464
    Abstract: The device comprises a roadstone spreader having roadstone flap-doors which are juxtapositioned the transverse direction and which are of equal width, and a rail for spreading bituminous binder facing spreading zones for roadstone via the roadstone flap-doors. The rail f comprises a first set of nozzles which produce jets which cover approximately three pitches of an impact zone of the road surface and nozzles of a second set of nozzles which are interposed between the nozzles of the first set and which are supplied in order to produce margin jets having an impact zone which extends approximately over two pitches over the road surface.
    Type: Grant
    Filed: November 24, 2003
    Date of Patent: October 12, 2004
    Assignee: Famaro
    Inventor: Guy Marconnet
  • Publication number: 20040170083
    Abstract: A machine for combining powder material with cohesive site-won spoil has an input hopper (4) which provides a preliminary breaking up step. Some lime is added from a lime feeder (6) as the material is transported to a pan mixer (8). During transport a rotavator (30) acts on the cohesive material so that finely divided material enters the mixing means (8). Further powder ingredients can be added to the components in the pan mixer (8) by means of a powder ingredient supply system (10).
    Type: Application
    Filed: January 9, 2004
    Publication date: September 2, 2004
    Inventor: Frank Owen
  • Patent number: 6695530
    Abstract: A method and apparatus are provided for in situ rejuvenation of asphalt pavement. The apparatus and method provide for heating the underlying surface to form a preheated surface, passing a mill over the preheated surface and milling the preheated surface to loosen the preheated surface to a desired depth and discharging the milled material from opposite ends of the respective windrows of known breadth. Windrow height is measured as is rate of advance of the transport structure to determine a volume throughput. Rejuvenating fluid is added to each windrow at a dosage rate based on a desired weight percentage and the volume throughput. A mixer is passed over the windrows and receives the windrows through respective openings at either end thereof. The mixer also blends the rejuvenating fluid with the milled material and forms a blended mixture which is discharged from the mixer. The mixer may be a pug mill operated in an inverted arrangement utilizing the road surface as a bottom thereto.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: February 24, 2004
    Inventor: Francesco A. Crupi
  • Patent number: 6695529
    Abstract: A system for reclaiming displaced road surface material from along side a road. More specifically, the instant invention is a road material reclamation device including a movable fame capable of being attached to another machine. At least one cylinder drive mechanism attached to the frame and configured to rotatably support a cylindrical rotary screen. The rotary screen has an interior, a front section and a rear section, a side rolling surface located adjacent the front section and the rear section, each side rolling surface being configured to engage the drive mechanism. Located adjacent the front section is a flange section. A cylindrical end frame supports at least one cylindrical end roller, the end frame and end roller being configured to engage the flange section and prevent axial displacement of the rotary screen. Additionally, a feed chute is located adjacent the rear section and is configured to direct material into the interior adjacent the rear section.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: February 24, 2004
    Assignee: Road Recovery Systems, LLC
    Inventor: Pat Eslick
  • Patent number: 6626608
    Abstract: A mobile rock crusher for crushing raw rock material which has been windrowed on a roadway in the translation path of the crusher includes a rigid supporting structure, which includes a frame, and translation means for allowing translation of the frame over the roadway. A selectively actuable scoop is pivotally mounted to the frame for selectively actuable lowering over the roadway into sliding engagement with, so as to collect, the windrowed raw rock material onto the scoop. A first conveyor is mounted to the frame. An upstream loading end of the first conveyor cooperates with the scoop for conveying the raw rock material from the scoop onto a first screen at a downstream depositing end of the first conveyor. The first screen is for screening larger diameter material from smaller diameter material in the raw rock material so that the smaller diameter material falls through the first screen.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: September 30, 2003
    Inventor: Jerry Olynyk
  • Patent number: 6565281
    Abstract: A device for working road surfaces comprising an automotive running gear (2) with a working roll (4) enclosed by a cover (8) forming a working chamber (6), and a drive motor for providing the power required for driving the working roll (4) and the travel, it is provided that a plurality of adjacent mixing components with foam outlet nozzles (14) for producing foamed bitumen are arranged in an upper portion of the cover (8), hot bitumen supplied from a bitumen reservoir via supply lines (16, 42) and a bitumen injection nozzle (18) together with water supplied from a water reservoir via a water injection nozzle (22) may be mixed under pressure in an expansion chamber (26) of the mixing components, and that the spray jet of foamed bitumen leaving the foam outlet nozzles (14) is directed into the working chamber (6) and becomes mixed into the construction material mixture granulated by the working roll (4).
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: May 20, 2003
    Assignee: Wirtgen GmbH
    Inventors: Thomas Bruns, Walter Grueber, Siegbert Dittmann
  • Patent number: 6481922
    Abstract: An apparatus and a method for re-mixing size and weight segregated Hot Mix Asphalt (“HMA”) which is continuously discharging from a windrow elevator. The apparatus includes an auger assembly having first and second helical auger sections, mounted in spaced relation over respective ends of an auger connecting shaft. The first and second sections are of converging, opposite handedness. Owing to their orientation and handedness, the augers advance incoming material inwardly, toward a mixing zone, adjacent and around an intermediate portion of the connecting shaft. The apparatus also includes an auger housing, having an upper portion with a material inlet, and a lower portion with a material discharge. The auger assembly is mounted for rotation within the lower portion of the auger housing. The housing surrounds side, bottom and end portions of the auger sections. The material inlet is above and in communication with upper portions of the auger sections and the mixing zone.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: November 19, 2002
    Inventor: Robert L. Boyd
  • Publication number: 20020154949
    Abstract: An apparatus and a method for re-mixing size and weight segregated Hot Mix Asphalt (“HMA”) which is continuously discharging from a windrow elevator. The apparatus includes an auger assembly having first and second helical auger sections, mounted in spaced relation over respective ends of an auger connecting shaft. The first and second sections are of converging, opposite handedness. Owing to their orientation and handedness, the augers advance incoming material inwardly, toward a mixing zone, adjacent and around an intermediate portion of the connecting shaft. The apparatus also includes an auger housing, having an upper portion with a material inlet, and a lower portion with a material discharge. The auger assembly is mounted for rotation within the lower portion of the auger housing. The housing surrounds side, bottom and end portions of the auger sections. The material inlet is above and in communication with upper portions of the auger sections and the mixing zone.
    Type: Application
    Filed: April 19, 2001
    Publication date: October 24, 2002
    Inventor: Robert L. Boyd
  • Patent number: 6438874
    Abstract: A hydraulic rotary grinder for attachment to construction machinery such as an excavator, consisting of a rotating drum having a hollow core and a plurality of attached replaceable grinding tips. A hydraulic motor rotates the drum, and is secured within the hollow core and activated by the hydraulic system of the construction machinery. A planetary gearbox is associated with the hydraulic motor to provide speed changes. At least one weight within the hollow core provides shock absorption and additional mass to the rotating drum. A heat-absorbing liquid within the hollow core absorbs heat from the grinding operation and a seal prevents the heat-absorbing liquid from leaking out of the drum. A number of water nozzles may be mounted on the apparatus for dust suppression. A second hydraulic motor may be provided for increased torque and grinding capacity.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: August 27, 2002
    Assignee: Genesis Equipment and Manufacturing, Inc.
    Inventors: Kenneth R. LaBounty, Ross D. Christenson, Daniel P. Jacobson
  • Patent number: 6439804
    Abstract: A method and apparatus for controlling the mixing of asphalt aggregate with rejuvenating materials in an asphalt rejuvenating machine. According to the method, milled aggregate is discharged in a windrow of fixed width, and windrow height is compared to rejuvenating machine speed to determine a volume rate of material being processed. A processor controller calculates a required amount of rejuvenating fluid addition based on the volume rate being processed and a desired proportion of rejuvenating fluid to aggregate. The processor controller controls a sprayer which directs rejuvenating fluid at some point along a zone extending from a milling apparatus to a mixer.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: August 27, 2002
    Inventor: Francesco A. Crupi
  • Patent number: 6416249
    Abstract: A blending apparatus which forms part of an asphalt pavement resurfacing machine has first and second stages. The first stage receives milled material through an inlet and blends the milled material with a rejuvenating fluid. The first stage has a transversely extending shaft from which paddles extend radially to blend the milled material with the rejuvenating fluid and direct it toward a first stage outlet. The second stage receives the blended material from the first stage outlet. The second stage has a respective shaft with mixing paddles extending radially therefrom to further blend the material and direct it toward a second stage outlet.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: July 9, 2002
    Inventor: Francesco A. Crupi
  • Patent number: 6409424
    Abstract: A raking device for breaking up a surface has a plurality of rakes mounted on a rake frame and arranged to produce an upwardly directed result in force in response to a horizontally directed force arising from encountering an obstruction in a path of travel of the raking device. A rake frame support mounts the rack frame to a rake frame carrier structure and allows controlled movement of the rakes in a vertical direction. A force applicator acting between the rake from carrier and the rake frame support is provided to apply at least a downward force to the rake. The force applicator is responsive to an increase in the upwardly directed result in force above a preset amount to allow the rakes to move upwardly in response to the increase in force.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: June 25, 2002
    Inventor: Francesco A. Crupi
  • Patent number: 6368014
    Abstract: A ground working device is formed from a sub-frame having a first side and a second side, plural discs mounted for rotation on the sub-frame between the first side and the second side about an axis that extends from the first side to the second side; and a set of scoops mounted on each disc in ground contacting position. The scoops efficiently lift the ground surface material, which falls to the ground in a sorted manner with coarser material on top. A motor is operatively connected to the plural discs for rotating the discs about the axis. Each scoop in each set of scoops has a ground working face that extends transversely to the disc on which the respective scoop is mounted. The scoops each have concave ground contacting surfaces. Each scoop is received in a respective slot in the disc in which the respective scoop is mounted. The ground working device is mounted on a main frame, which is provided with ground engaging wheels. The sub-frame is retractably mounted on the main frame.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: April 9, 2002
    Assignee: Road Badger, Inc.
    Inventors: Larry G. Culver, Ray W. Gillard
  • Patent number: 6322287
    Abstract: A grading machine includes a forwardly projecting frame partially supported by a small tractor. A blade assembly on the frame disperses and strikes off aggregate for subsequent paving along a course. The blade assembly of the apparatus is indirectly supported by linear actuators in turn supported by a shoe which travels along the aggregate surface. Adjustable indicators on the flame indicate the relationship of the aggregate surface to a desired aggregate height with subsequent operation of the actuators lifting or lowering the blade assembly to raise or lower the blade assembly strike off action for return of the indicators to a predetermined relationship to guides, shown as concrete forms, extending along the course of the aggregate being laid. A vibratory compactor trails the shoe and may move about multiple axes. The shoe supported actuators may be operated in a uniform or differential manner, the latter resulting in transversely tilting the blade assembly for transverse sloping of the aggregate surface.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: November 27, 2001
    Inventor: James E. Yelton
  • Publication number: 20010022919
    Abstract: In a device for working road surfaces comprising an automotive running gear (2) with a working roll (4) enclosed by a cover (8) forming a working chamber (6), and a drive motor for providing the power required for driving the working roll (4) and the travel, it is provided that the cover (8) has means (10) for producing foamed bitumen provided with a plurality of adjacent mixing means (12) with foam outlet nozzles (14), hot bitumen supplied from a bitumen reservoir via supply lines (16, 42) and a bitumen injection nozzle (18) together with water supplied from a water reservoir via a water injection nozzle (22) may be mixed under pressure in an expansion chamber (26) of the mixing means (12), and that the spray jet of foamed bitumen leaving the foam outlet nozzles (14) is directed into the working chamber (6) and becomes mixed into the construction material mixture granulated by the working roll (4).
    Type: Application
    Filed: August 6, 1999
    Publication date: September 20, 2001
    Inventors: THOMAS BRUNS, WALTER GRUEBER, SIEGBERT DITTMANN
  • Patent number: 6213680
    Abstract: Apparatus and methods are provided for filling a groove in a pavement with a groove filling grout. The present invention is used for forming pavement markings, such as lane striping.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: April 10, 2001
    Assignee: Interstate Highway Construction
    Inventors: James Kenyon Schaeffer, Roger D. Randall, John L. Edwards, Brian D. Huffman, Jack L. Crosby, Paul Svaldi