Portable Spreader Box Patents (Class 404/110)
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Patent number: 6517281Abstract: A particulate material spreader includes an adjustable spinner apparatus which is incrementally adjustable forwardly and rearwardly to a plurality of operating positions relative to the discharge end of the material conveyor. The adjustment may be manual or automatic to adjust the drop point of the material onto the spinners, thereby accommodating varying application rates of the particulate material on a field, lawn, road, or other area. The spreader may be operatively connected to a microprocessor to receive data input and sensor feedback for variable rate technology.Type: GrantFiled: May 19, 2000Date of Patent: February 11, 2003Assignee: Highway Equipment CompanyInventor: Matthew W. Rissi
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Patent number: 6488443Abstract: A pull spreader for spreading a surface material such as asphalt on a path. The pull spreader includes an open-bottomed frame having a first side wall and an opposed second side wall, a front wall extending between the first and second side walls, a screed wall opposed to the front wall and extending between the first and second side walls so that the first and second side walls, front wall and screed wall define a storage chamber for the surface material, wherein the storage chamber has an inlet area defined between top edges of the side walls, front wall and screed wall that is about the same as or smaller than a discharge area of the storage chamber defined between bottom edges of the side walls, front wall and screed wall which bottom edges are adjacent the path over which the pull spreader travels. The pull spreader also includes at least one steering wheel secured to a front frame extension extending from the front wall in a direction away from the storage chamber.Type: GrantFiled: January 11, 2001Date of Patent: December 3, 2002Inventor: Robert A. Garrity, Jr.
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Patent number: 6386792Abstract: An implement is described for use in filling wheel tracks (e.g. irrigation sprinkler wheel tracks or ruts) with granular fill material. The implement includes a wheeled frame, a hopper with a bottom opening, and a filling guide suspended below the opening in the hopper for guiding fill material directly into the wheel track. Preferably, the filling guide a includes a rear wall which has a concave lower edge to shape or contour the upper surface of the fill material placed in the wheel track.Type: GrantFiled: January 10, 2000Date of Patent: May 14, 2002Inventor: James E. Stevenson
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Patent number: 6345931Abstract: An applicator mechanism for applying a layer of aggregate material on a ground surface comprising an adjustable bracket for mounting the applicator mechanism to a carrying device, a hopper attached to the mounting bracket having a first opening for receiving a supply of aggregate materials said hopper having a second opening for dispensing the aggregate material onto the ground surface, a first shaft attached to the hopper and in communication with the second opening having projections for spreading the aggregate material onto the ground surface through the second opening, a mechanism for driving the first shaft, a second shaft having at least one structure for interacting with the projections in order to control the size or amount of aggregate material exiting the hopper through use of a spring force that adjusts the tension applied to the paddle by way of a handle used to rotate the second shaft, and a mechanism for holding the tension handle in one of several predetermined positions.Type: GrantFiled: September 16, 1999Date of Patent: February 12, 2002Inventor: Dexter Capece
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Patent number: 6203244Abstract: A screeding attachment for an industrial utility vehicle. The screed and vehicle in combination provide a low cost, maneuverable and versatile screeding unit for screeding small and medium size pavements such as driveways, sidewalks, slabs and surfaces inside buildings and the like. A see-through frame supported on castered wheels and a see-through distribution and deposition system for metering and depositing paving materials in the path of a grooved cylindrical screed provide an apparatus for continuously laying a screeded slab under the direct observation of an operator in the industrial utility vehicle.Type: GrantFiled: January 15, 1999Date of Patent: March 20, 2001Assignee: Van-Boh Systems, Inc.Inventor: Leslie Van Ornum
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Patent number: 6193438Abstract: A paver (1) with a chassis (2) at the front in the paving direction, with a hopper (11) for receiving material to be paved and, at the rear, with a floating screed (5), two centrally arranged longitudinal conveyor devices (9,10) guided through a shaft (8) being provided between the hopper (11) and a distributor auger (7) located in front of the screed (5) in the paving direction, the hopper (11) being open relative to the longitudinal conveyor devices (9,10) and an additional conveyor device (33) for loading a hopper (12) of a following paver (13) being provided. One of the longitudinal conveyor devices (10) extends from the rear outlet of the shaft (8), beyond the screed (5) and to the additional conveyor device (33) and has a discharge end (14) which is fixed or adjustable to an appropriate height for loading the hopper (12). The longitudinal conveyor devices (9,10) are partitioned off from each other by a vertical separating plate (20).Type: GrantFiled: May 12, 1999Date of Patent: February 27, 2001Assignee: ABG Allgemeine Baumaschinen-Gesellschaft mbHInventor: Dirk Heims
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Patent number: 6193437Abstract: A paver and a corresponding loader each have a chassis (1) which is provided, at the front in the paving direction, with a hopper (8) for receiving material to be paved and, at the rear, with a floating screed (4), a longitudinal conveyor device (7) being provided between the hopper (8) and a distributor auger (6) located in front of the screed (4) in the paving direction, the hopper (8) being open towards the longitudinal conveyor device (7) and including two hopper halves (9) which are each pivotable about an axis (21) extending adjacently to the longitudinal conveyor device (7) in the paving direction. Further, in each of the hopper halves (9) is provided a lateral conveyor device (12) which is drivable by a drive (13), is arranged on the bottom side and extends as far as the longitudinal conveyor device (7), those bottom portions (14, 19) of the hopper halves (9) which remain with regard to the respective lateral conveyor device (12) being tiltable relative to the lateral conveyor device (12).Type: GrantFiled: May 12, 1999Date of Patent: February 27, 2001Assignee: ABG Allgemeine Baumaschinen Gesellschaft mbHInventor: Dirk Heims
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Patent number: 6099205Abstract: An improved asphalt paver having a remixing conveyor system that is adapted to substantially or entirely eliminating segregation in hot mix asphalt material delivered to the asphalt paver. The remixing conveying system includes at least one pair of parallelly spaced, oppositely pitched, counter-rotating hydraulically driven feed augers having remixing blades that intermittently displace portions of the hot mix asphalt material generally transversely to the direction that the feed augers convey the hot mix asphalt material from a hopper of the asphalt paver to spreading augers near the rear of the machine. Elongate members over the feed augers provide protection from impact forces and overloading and enhancing lateral extraction of hot mix asphalt material from the hopper. An optional feed screen provides flow control of the hot mix asphalt material in the hopper. A kit is provided for converting existing asphalt paving machines to have desegregating capability.Type: GrantFiled: August 17, 1998Date of Patent: August 8, 2000Assignee: Cedarapids, Inc.Inventors: Charles G. Macku, John A. Trygg
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Patent number: 6089785Abstract: A box of the attachment apparatus receives asphalt from the discharge chute of a forward-tip dump-truck. The asphalt is deposited on the rod in a stripe, and is compacted by being rolled over by the rear wheel of the truck. The thickness of the stripe is set by side-runners, which hold the bottom of the box clear of the road. The weight of the asphalt-laden box loads the side-runners against the road, and permits pre-compaction, in which the stripe of asphalt is partly pre-compacted before being rolled over by the wheel. Where the truck has double rear wheels, the stripe can be as wide as the width of both wheels. The box is carried on a parallelogram linkage, which is mounted from the chassis of the truck.Type: GrantFiled: September 11, 1998Date of Patent: July 18, 2000Inventor: Douglas Jerome Bergman
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Patent number: 6086287Abstract: Method and apparatus for depositing roadway material on a road bed using a road paving machine having a spreader for laterally spreading the material and a screed for leveling the material. A guide underneath the spreader and the screed is used to control the height of the screed above the road bed. The guide also confines the width of the material deposited by the road paving machine to less than the width of the screed which is normally the standard width of material deposited by the road paving machine.Type: GrantFiled: July 20, 1998Date of Patent: July 11, 2000Inventors: John Russell Sharpe, Alan Victor Sharpe, Ronald Douglas Sharpe
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Patent number: 6050744Abstract: A paver machine for applying paving material to narrow paths is disclosed. The machine includes a storage hopper and frame elevated above a roadbed by at least three wheeled unit members. A free-floating screed assembly located beneath the hopper and pivotally attached to the frame applies a paving material matte to the roadbed as the paver machine is moved along by a front end loader or the like.Type: GrantFiled: February 4, 1999Date of Patent: April 18, 2000Inventor: Burleigh Binning
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Patent number: 6007272Abstract: An improved asphalt paver having a remixing conveyor system that is adapted to substantially or entirely eliminating segregation in hot mix asphalt material delivered to the asphalt paver. The remixing conveying system includes at least one pair of parallelly spaced, oppositely pitched, counter-rotating hydraulically driven feed augers having remixing blades that intermittently displace portions of the hot mix asphalt material generally transversely to the direction that the feed augers convey the hot mix asphalt material from a hopper of the asphalt paver to spreading augers near the rear of the machine. Elongate members over the feed augers provide protection from impact forces and overloading and enhancing lateral extraction of hot mix asphalt material from the hopper. An optional feed screen provides flow control of the hot mix asphalt material in the hopper. A kit is provided for converting existing asphalt paving machines to have desegregating capability.Type: GrantFiled: August 25, 1997Date of Patent: December 28, 1999Assignee: Cedarapids, Inc.Inventors: Charles G. Macku, John A. Trygg
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Patent number: 5980153Abstract: A telescoping auger shaft is provided that distributes slurry material throughout a spreader box of variable width in a paving system. The telescoping auger shaft comprises a first shaft positioned coaxially with and engaging a second shaft such that the second shaft is operable to extend with respect to the first shaft while remaining engaged with the first shaft. The two shafts can form a combined shaft of variable length. The telescoping auger shaft further comprises two sections of auger flighting, one coupled to the first shaft and one coupled to the second shaft. The two sections of auger flighting are operable to distribute slurry material in a spreader box when the first shaft and the second shaft are rotated. The first shaft includes a guide portion. A guide element is coupled to second shaft and engages with the guide portion. When the second shaft is extended with respect to the first shaft, the guide element can cause the second shaft to rotate with respect to the first shaft.Type: GrantFiled: July 30, 1998Date of Patent: November 9, 1999Assignee: Akzo Nobel Asphalt Applications, Inc.Inventors: Carl Dean Plemons, Calvin Lynn Stegemoeller
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Patent number: 5895173Abstract: A roadway paving apparatus applies successive layers of paving material to a roadway surface so as to form a desired thickness of pavement thereon. Preferably, the apparatus comprises a hopper for hauling aggregate material (e.g., gravel, sand, and/or crushed stone) and for dispensing a curtain of falling aggregate material therefrom. An initial group of spray nozzles aimed generally at the surface of the roadway applies a base layer of adhesive material (e.g., liquid asphalt) to the surface of the roadway. One or more groups of subsequent spray nozzles aimed generally at the curtain of falling aggregate material coats the curtain of falling aggregate material with adhesive material such that an intermediate layer of adhesive coated aggregate material is deposited on top of the underlying base layer of adhesive material. A final group of spray nozzles aimed at the surface of the roadway applies an overspray layer of adhesive material on top of the intermediate layer of adhesive coated aggregate material.Type: GrantFiled: July 28, 1997Date of Patent: April 20, 1999Assignee: E. D. Etnyre & Co.Inventors: Patrick O'Brien, Thomas Brown
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Patent number: 5879104Abstract: In a slip-form paver for road constructions of concrete, at least one transverse distribution means, at least one stripper device, one slip form and at least one concrete paving screed are arranged on a support frame, said concrete paving screed being a high-compaction paving screed which is floatingly hinged by means of at least two extension bars, which are located approximately in parallel with the base course, to pulling points of the support frame which are positioned in the traveling direction at a distance in front of the high-compaction paving screed.Type: GrantFiled: December 18, 1996Date of Patent: March 9, 1999Assignee: Joseph Vogele AG.Inventor: Alfred Ulrich
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Method and apparatus for spraying a tack material from a paving machine having a gravity feed hopper
Patent number: 5851085Abstract: A paving machine employs in combination a gravity feed HMA hopper and a tack spray assembly and storage tank. Use of the gravity feed hopper permits all HMA or other paving material stored therein to be discharged directly on top of the paving machine's distributing auger. Moreover, because the gravity feed hopper takes up a relatively small percentage of the horizontal area of the paving machine, a chassis of standard or near standard dimensions can receive a tack storage tank of sufficient capacity to permit the paving machine to operate an entire day without stopping the machine to refill the storage tank. Therefore, if used in conjunction with an HMA shuttling apparatus, the paving machine can simultaneously coat a surface to be paved with a tack material and pave that surface with HMA for prolonged periods of time without stopping to refill either the HMA hopper of the tack storage tank.Type: GrantFiled: December 30, 1996Date of Patent: December 22, 1998Assignee: Astec Industries, Inc.Inventor: Thomas R. Campbell -
Patent number: 5722790Abstract: An asphalt paving machine has spreading mechanism for distributing paving material to the roadway, a hopper, a conveyor forming the bottom of the hopper for moving paving material along a path extending through the hopper and to the spreading mechanism, and a device for mixing the paving material as it moves along the path. The mixing device includes at least one stationary weir member mounted within the hopper and spaced above the conveyor. The weir member is positioned in the path of the paving material and presents an upright surface having a bottom edge. The bottom edge of the weir member and the conveyor define a generally vertical passageway through which the paving material passes as it is moved by the conveyor.Type: GrantFiled: December 28, 1995Date of Patent: March 3, 1998Assignee: Venture CorporationInventor: Orville Oren Spray
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Patent number: 5641249Abstract: This invention is an aggregate extruder for the deposition of a multi-layered aggregate bed having layers of differing aggregate material. The extruder is divided into three sections transversely disposed over a defined surface, each of the sections contains a different aggregate material. A front grading baffle is mounted behind a front panel extending intermediate side panels forming the front dispensing section. A second grading baffle is mounted between the first and rear grading baffles forming the middle dispensing section, behind the front dispensing section, and a rear dispensing section. The extruder is self-propelled by a hydraulically operated ram mounted to each side panel. A panel is mounted to the rear of each side panel of the hopper and extends rearward thereof to define channel within which aggregate is maintained as the hopper moves along the surface. When the ram is activated it extends rearward for engagement with a form, and pushes the extruder along the defined surface.Type: GrantFiled: February 17, 1995Date of Patent: June 24, 1997Assignee: Hubbard Construction CompanyInventor: Thomas Morris McClelland
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Patent number: 5615973Abstract: A paving machine has a gravity feed hopper which is capable of delivering by gravity to the paving apparatus substantially all of the paving materials stored in the hopper without employing any internal conveyors. The discharge opening of the hopper is selectively closed by a feeder gate, the degree of opening of which is preferably coordinated with other operating parameters of the machine such as vehicle speed, distributing auger height and/or speed, and screed operation. Use of the gravity feed hopper significantly reduces construction and maintenance costs, provides a more uniform feed of materials from the hopper, and permits the use of a smaller engine. The paving machine as thus constructed is also relatively easy to operate and thus can be controlled by a single operator seated in the vicinity of the screed.Type: GrantFiled: September 29, 1994Date of Patent: April 1, 1997Assignee: Astec Industries, Inc.Inventor: Thomas R. Campbell
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Patent number: 5599135Abstract: An asphalt spreader for spreading asphalt into ruts in a roadway. The spreader includes a main blade that has wings on either end to keep asphalt before the blade. The blade also has a wedge-shaped center portion which diverts asphalt toward either side of the blade to direct more asphalt into the ruts. The vertical clearance of the wedge-shaped center portion can be separately adjusted so as to control the amount of asphalt that is laid down in the center portion between the ruts. In addition, the bottom surface of the blade is inclined rearwardly with respect to the blade to form an acute angle with the groundplane.Type: GrantFiled: June 8, 1995Date of Patent: February 4, 1997Inventor: John Delaurenti
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Patent number: 5553969Abstract: A paving apparatus utilizing surface paving components which are stored in a plurality of containers. The containers are supported on a movable platform which may be motivated by a motor carried on the platform. The platform includes a first end having the motor and a second end portion which provides an operator stand. Containers are supported on the platform to hold each of the plurality of surface paving components which are mixed in a holding tank and sent to a conveyor on the movable platform. A control is located at the operator stand to determine the speed and to steer the movable platform. Mixing of paving components and the spreading of the same on a surface are also controlled at the operator stand.Type: GrantFiled: February 13, 1995Date of Patent: September 10, 1996Inventor: Jeffrey Reed
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Patent number: 5533829Abstract: A paving machine is described which includes: a gravity feed hopper located near a front end of a chassis; a distributing auger mounted on the chassis near the rear end thereof and extending transversely across the chassis; a remixing device including a variable-pitch screw auger with i) a first flight section and ii) a second flight section, the second flight section being located transversely between a lower discharge opening of the hopper and the first flight section, the pitch of the first flight section being lower than the pitch of the second flight section so that volumes bounded by flights of the second flight section are greater than volumes bounded by flights of the first flight section, so as to enable finer paving materials, located in a transverse central portion of the hopper to enter void spaces in volumes bounded by flights of the second flight section and combine with coarser paving material, thereby remixing segregated paving materials; and a discharge conveyor assembly extending longitudinaType: GrantFiled: May 2, 1995Date of Patent: July 9, 1996Assignee: Astec Industries, Inc.Inventor: Thomas R. Campbell
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Patent number: 5533828Abstract: A paving machine discharges HMA or other paving materials directly on top of a distributing auger located between the paving material storage hopper and the screed. The distributing auger is then capable of remixing any partially segregated paving materials and of uniformly distributing the paving materials directly adjacent a previously-paved segment. Materials may be discharged on top of the distributing auger from a discharge opening of a gravity feed hopper located adjacent the distributing auger or from an inclined conveyor delivering materials from a more standard hopper mounted near the front end of the paving machine.Type: GrantFiled: February 16, 1995Date of Patent: July 9, 1996Assignee: Astec Industries, Inc.Inventor: Thomas R. Campbell
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Patent number: 5518544Abstract: An applicator for mounting on a vehicle for applying a surface treatment of tar and/or bituminous binder material reinforced with glass fibres, such an applicator comprising an open bottomed spray bar housing (1), a fan (16) for producing a down-draft in the housing, at least one spray bar (5, 19) mounted on said housing and adapted to extend transversely of the direction of movement of the vehicle on which the applicator is mounted, a plurality of nozzles (6, 20) spaced longitudinally along the spray bar for spraying binder material, means (10) for controlling said nozzles, a plurality of sources (14, 24-28) for dispensing cut glass fibres through said open bottomed housing to the surface of binder material previously sprayed from the spray bar nozzles during use of the applicator, said sources being mounted at locations spaced along a plane substantially parallel to said spray bar, such that the glass fibres are dispensed substantially evenly onto the surface of binder material previously sprayed from the sType: GrantFiled: September 14, 1993Date of Patent: May 21, 1996Inventor: Philip J. Higginson
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Patent number: 5484229Abstract: The invention relates to a system and apparatus for use with a vehicle having a dump bed for carrying a material and having a moveable panel defining an outlet in the dump bed for dispensing material carried in the dump bed to a road surface when the dump bed is raised, comprising a baffle positioned in the dump bed extending upwardly from a floor of the bed, and extending from a region of the moveable panel to a region of a wall of the bed for directing the material to a portion of the outlet as gravitational force acts on the material when the dump bed is raised. Such system and apparatus may further include a receptacle coupled to the vehicle for receiving a flow of the material passing through the portion of the outlet and having a variable opening for dispensing controlled amounts of the material to the surface. Such system and apparatus may further include a leveling sled for leveling the material after the material leaving the dump bed reaches the road surface.Type: GrantFiled: March 31, 1994Date of Patent: January 16, 1996Inventor: Roger R. Reece
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Patent number: 5427470Abstract: An applicator for applying seamless flooring material to a subfloor is disclosed. The preferred embodiment includes a chassis steerably mounted on wheels which are propelled by hydraulic motors in series. A dispensing hopper on a frame is towed behind the chassis from a shaft on a steering column and enabled to move in three dimensions independent of the chassis. The hopper is supported by hopper wheels with an axle directly above a screed blade which distributes the flooring material dispensed out of the hopper. The height of each side of the hopper is independently adjustable on each side by screw-threaded rods and is not disrupted by lifting the hopper out of operation.Type: GrantFiled: July 26, 1993Date of Patent: June 27, 1995Assignee: Leemac Industries, Inc.Inventor: Alan M. McKim
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Patent number: 5405214Abstract: A paving machine employs at least one gate mechanism which can selectively alter the weighting of the flow of paving materials from the discharge opening of a hopper by adjusting the contour of the effective lower edge of the gate mechanism. This contour is preferably adjusted by forming the gate mechanism from front and rear vertically adjustable gates, the lower edges of which have opposed tapers. The discharge of materials from the opening is weighted towards one side when the front gate is raised and the rear gate lowered or partially lowered, and is weighted towards the other side when the rear gate is raised and the front gate lowered or partially lowered. Discharge may be prevented altogether by fully lowering both gates.Type: GrantFiled: August 12, 1993Date of Patent: April 11, 1995Assignee: Astec Industries, Inc.Inventor: Thomas R. Campbell
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Patent number: 5387051Abstract: The present invention relates to an apparatus for applying cementitious material onto a floor surface while screeding it and producing varying depths of ridged impressions in a longitudinal direction within the cementitious material, from deep ridges to flat surfaced material, all formed with a levelled surface, adapted to receive tile components and other flooring products. The apparatus includes a base adapted for displacement on the floor surface and provided with a container to receive the cementitious material. The container is adapted to discharge a required amount of cementitious material on the floor surface. The base defines an opening which screeds the material onto the floor surface and trails the discharged cementitious material from the container on the floor surface when the apparatus is operatively displaced. A gate is moveably mounted to be vertically displaced for selectively reducing the opening and for evenly spreading the cementitious material passing therethrough.Type: GrantFiled: April 2, 1993Date of Patent: February 7, 1995Assignee: Antonietta Investments Ltd.Inventor: Pietro Valente
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Patent number: 5362178Abstract: An apparatus for spreading a liquid over a surface, such as sealant over a pavement, is provided. The apparatus is mounted on a trailer and is comprised of a storage bin for containing the liquid to be spread, a drainage trough, and spreading brushes. Liquid is mixed in the storage bin and then transferred to the drainage trough where it is then dispersed onto the surface for spreading as the apparatus is towed along. The width of the path of dispersed liquid laid down by the drainage trough can be adjusted if necessary for sidewalks or other narrower surfaces. The brushes spread the liquid evenly over the surface. The drainage trough and brushes are hingedly connected to the storage bin and are pivotable between positions of operation and transport.Type: GrantFiled: April 28, 1993Date of Patent: November 8, 1994Inventor: John S. Schantz
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Patent number: 5269626Abstract: The present invention relates to a machine utilizing road-making materials, in particular for the spreading of road pavement courses intended to be applied in courses of different thicknesses, particularly of asphalt concrete in ultrathin courses, of the type comprising a chassis equipped with rolling means and capable of being coupled to a traction means intended to ensure its movement over the ground, which comprises a hopper (16) for densification and distribution of said material, whose lower orifice (18) is disposed close to the ground, as well as a vibrating bar (38) mounted in the immediate vicinity of the rear transverse edge (40) of said hopper (16).Type: GrantFiled: October 29, 1991Date of Patent: December 14, 1993Assignees: Entreprise Jean Lefebvre, Societe Nouvielle FranexInventors: Samir Soliman, Claude Sibaud, Jean-Pierre Potier
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Patent number: 5251999Abstract: The invention pertains to a self-contained, mobile, pavement repair apparatus. A self-propelled, wheeled vehicle is described, upon which are mounted a material supply hopper, a debris storage, an overhead crane arm, and an articulated conveyor arm. Mounted on the business end of the crane arm are various implements for performing pavement repair, all of which are remotely controlled by a single user in an enclosed cab. Asphalt or concrete patching material is transported by an auger from the tiltable supply hopper to an articulated conveyor arm, which conveyor arm deposits the material upon the repair area. The user remotely controls the overhead crane arm in order to position and actuate, from the cab, the various repair implements. All apparatus functions, materials and safety devices necessary to complete the repair process may be operated by a single user.Type: GrantFiled: March 25, 1992Date of Patent: October 12, 1993Inventor: Hilton G. McCracken
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Patent number: 5236275Abstract: A pavement patcher has a frame supported on the back of a truck. An operator's platform is movable horizontally and transversely on the frame across the back of the truck, and longitudinally for a short distance. The platform carries a hydraulic control console and a blacktop hopper with a hydraulic rotor and an auger. The platform also carries a steel roller mounted on hydraulic rams. The truck driver stops with the frame over a hole. The operator riding on the platform positions the side delivery opening at the bottom of the hopper next to the hole and operates the auger to dispense the required amount of blacktop. The operator then extends the rams to lower the roller and moves the platform to roll the roller across the patch. Significant force is developed on the roller from the hopper's platform, carriage, frame and truck to seal the patch. A hydraulic package is mounted at a side of the frame with a motor, pump and reservoir.Type: GrantFiled: August 28, 1991Date of Patent: August 17, 1993Inventors: Reginald J. Kneeland, Ghassan A. Radwan
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Patent number: 5234128Abstract: A material spreader consisting of a hopper, attached to a motor vehicle, which receives and dispenses an aggregate material in predetermined quantities and in a layer having substantial uniformity in thickness. The rate of dispensing the aggregate material is controlled by a computer which receives the desired weight of aggregate per area data input from the operator, senses the velocity of the motor vehicle, and adjusts the release rate of the aggregate from the hopper. The hopper is laterally expansible to accommodate varying road widths, and dispenses the aggregate material through gate openings in the bottom of the hopper. The aggregate is dispensed from the hopper without the aid of any operational parts exposed to the aggregate material within the interior area of the hopper.Type: GrantFiled: May 13, 1991Date of Patent: August 10, 1993Inventor: Francis K. Hill
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Patent number: 5232305Abstract: A paving material distribution system for uniformly distributing a layer of paving material includes a containment member that is slidably mounted on the rear frame of a paving machine. A first means for conveying paving material laterally with respect to the direction of travel of the paving machine is positioned at a preselected distance from the containment member. Power means are also included to controllably, simultaneously move the containment member and the first means in a substantially vertical direction.Type: GrantFiled: May 15, 1991Date of Patent: August 3, 1993Assignee: Caterpillar Paving Products Inc.Inventors: James H. Bassett, James J. Plociennik, Jay A. King, James M. Reiseck, Harold A. Shelley
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Patent number: 5201603Abstract: A tow point for an asphalt paver, which allows the operator to: (1) select either a fixed or sliding tow point connection; and (2) select from among several possible locations of each, thereby adjusting the distance between the screed and transverse auger of the paver. Combination of these features in a single machine makes it possible to lay down an asphalt mat of uniformly desired thickness, while optimizing use of the aggregate batch particles.Type: GrantFiled: May 17, 1991Date of Patent: April 13, 1993Assignee: Caterpillar Paving Products Inc.Inventors: James H. Bassett, Jay A. King, Andrew W. Green, David Emerson
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Patent number: 5201604Abstract: A sonic grade control device for maintaining a leveling instrument of a paver at a constant distance from a datum. The device transmits and receives a sonic signal to provide first and second time periods corresponding to the round trip travel time of a sonic signal to the datum and a target, respectively. A distance indicating signal, corresponding to the distance between the control device and the datum, is provided in response to the first and second time periods and a stored target distance, such target distance corresponding to the distance between the control device and the target. The grade control device includes an operator actuable control for modifying the stored target distance to calibrate the control device. A reference signal is compared to the distance indicating signal to provide a control signal. The reference signal is adjustable by a predetermined increment and the control device includes an operator actuable control for modifying the predetermined increment.Type: GrantFiled: July 30, 1991Date of Patent: April 13, 1993Assignee: Raytheon CompanyInventors: Christopher Ferguson, Joseph E. Musil
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Patent number: 5158394Abstract: A device for spreading particulate material in an elongated path at a precise predetermined height. The device comprises a front panel extending vertically from an upper opening and then extending horizontally terminating at the forward edge of a lower opening. A rear panel extends vertically from the upper opening and terminates at a lower edge located at an elevation above the lower edge of the front panel. Side panels extend vertically and are coupled to the front and rear panels. The side panels have inwardly extending shoes with lower surfaces parallel with the lower edge of the horizontal portion of the front panel. An L-shaped bar is adjustably positioned adjacent to the lower edge of the rear panel for varying the height of the particulate material to be dispensed.Type: GrantFiled: March 30, 1990Date of Patent: October 27, 1992Inventor: Pat Bresnahan
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Patent number: 5120217Abstract: A unit for heating initially solid asphaltic material to provide asphaltic concrete in a condition suitable for application, including an inner enclosure defining a volume for containing the material to be heated, an outer enclosure surrounding and spaced from the inner enclosure to define a space beneath the inner enclosure and passages for heated air flow around the walls of the inner enclosure, a screw disposed in an open-top channel at the floor of the inner enclosure to move heated material, an opening in the inner enclosure floor in communication with a passage in the outer enclosure floor for delivery of heated asphaltic material moved by the screw to the unit exterior, heating chambers projecting upwardly from the floor of the inner enclosure above the heating sources to provide regions through which hot air rises from the sources, and flues extending transversely from the upper portions of the heating chamber to the end walls of the inner enclosure for conducting the heated air from the heating chambType: GrantFiled: October 6, 1989Date of Patent: June 9, 1992Inventors: William J. O'Brien, Russell A. St. Louis, Anton H. Heller, deceased, Julia Heller, executrix
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Patent number: 5120155Abstract: A spreader box apparatus for use with a pavement applicating machine in spreading a pavement mixture onto a surface to be paved includes a frame, and a pair of side walls connected to the frame and defining a dimension of width which corresponds to the predetermined lateral dimension of the pavement mixture to be spread by the apparatus. The apparatus includes a plurality of spreader shafts for spreading the pavement mixture within the apparatus between the side walls and the side walls include skids on which the side walls are supported for movement relative to the surface. At least once screed is provided for metering the thickness of the pavement mixture to be spread by the apparatus.Type: GrantFiled: March 29, 1991Date of Patent: June 9, 1992Assignee: Grain Belt Supply Co., Inc.Inventor: Darwin L. Samspon
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Patent number: 5059062Abstract: Apparatus for slip-forming concrete to form a path comprising in combination a box having a front wall extending downwardly through the box, and a rear wall extending downwardly at an angle through the box to a location above the front wall, and opposing side walls coupling the front and rear walls extending downwardly to define the closed box having an upper opened end for receiving concrete and a lower opened end with a vertically disposed opened mouth defined by the vertical edges of the side walls and the lower edge of the rear wall, with the lower opened end having a smaller cross-sectional area than the upper opened end, and a screed for slip-forming the concrete, means for removably securing the screed at its edges to the side walls below the rear wall with the forward end of the screed being positioned at the opened mouth of the rear wall.Type: GrantFiled: June 14, 1990Date of Patent: October 22, 1991Inventor: Pat Bresnahan
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Patent number: 5035534Abstract: An apparatus provided with a hopper having a capacity substantially equal to the capacity of a supply truck for receiving asphalt-aggregate material. A transversely disposed screw auger is provided for remixing the asphalt-aggregate material in the hopper prior to its discharge. In one form of the invention, the apparatus forms part of a self-propelled storage vehicle which transfers the material from the supply truck to a conventional finishing machine.Type: GrantFiled: September 11, 1989Date of Patent: July 30, 1991Assignee: Barber-Greene CompanyInventors: James D. Brock, Donald W. Smith
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Patent number: 5009546Abstract: A road paver-finisher having a tractor unit and a screed unit mounted for vertical movement on and relative to the tractor unit. The tractor unit has a hopper for road material, and conveyors unload the road material from the hopper in front of the screed to be leveled by the screed. Crawler belts mounted on the tractor unit are disposed forwardly of the screed for advancing the tractor unit, and ground engaging steering wheels are mounted on the tractor unit forwardly of the crawler belts. Power devices are provided for moving the steering wheels and crawler belts vertically relative to each other thereby to control tilting of the tractor unit and hence of the screed. These power devices can move the steering wheels vertically relative to the crawler belts, or vice versa.Type: GrantFiled: February 8, 1989Date of Patent: April 23, 1991Inventors: Domenico Domenighetti, Jack Layton
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Patent number: 4966490Abstract: A device for use in applying a thin resinous coating to existing surfaces, such as concrete highways, to resurface and restore the same and improve their physical properties, such as skid resistance comprising two parallel supporting beams, a screed box having a bottom, two sides and a front and back sides, the bottom of which is attached to the parallel beams and the screed box having an adjustable dispersing gate at the back adapted to dispensing a controlled amount of the resinous binder in the box, at least one rotatable screed brush adjustably attached between the two beams behind the screed box and being adapted to bringing the dispersed binder in contact with the surface and pushing out any air that may be trapped under the coating, at least two spaced levelling bars perpendicularly and adjustably attached between the beams and being adapted to spreading and levelling the binder passing under the brush, at least one of the levelling bars being adapted to applying downward pressure on the layer of bindeType: GrantFiled: November 13, 1989Date of Patent: October 30, 1990Inventor: James V. Hodson
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Patent number: 4878778Abstract: The concrete path paver of the invention comprises a generally rectangular open-ended box having a front wall and an inwardly sloped rear wall rigidly connected between a pair of side walls to define a bottom opening. An adjustable screed is positioned underneath the sloped rear wall from the rearward side of the bottom opening and extends a significant distance beyond the lower edge of the rear wall to form a slip-form mold. A platform is affixed rearwardly of the rear wall above the screed allowing an operator to stand thereon and control the flow of concrete from the cement truck into the box. The concrete path paver further comprises an arcuate or flat plate affixed to the lower front edge of the front wall of the box. The front plate functions as a ski to push and smooth dirt along the path that may have been disrupted by the tires of the cement truck. Thus, the tire tracks made by the cement truck as it pulls the paver are filled in and smoothed over prior to the concrete being laid.Type: GrantFiled: April 14, 1988Date of Patent: November 7, 1989Inventor: Pat Bresnahan
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Patent number: 4871025Abstract: An improved ground levelling machine (10) for levelling small areas of ground comprising a main frame (11), a pivotal sub-frame (15) trailing said main frame (11) and pivotally connected thereto, a scraper blade (40) carried by the main frame (11), a hopper (27) carried on the main frame (11) for the supply of soil, sand or other filling material, a plurality of ground-engaging wheels (16) supporting the sub-frame (15), power means (22) to effect pivotal movement of the sub-frame (15) relative to the main frame (11) and to thereby raise and lower the main frame (11) relative to the ground, and control means (59) for controlling the operation of the power means (11) and to in turn control the elevation of the scraper blade (40) relative to a preselected reference plane.Type: GrantFiled: November 9, 1987Date of Patent: October 3, 1989Inventors: Trevor K. Mayfield, Lindsay F. Radcliffe
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Patent number: 4830594Abstract: An epoxy applicator having a housing for receiving epoxy material to be spread against a floor wall interface, said housing having a bottom open end and a partially open back end; supports on the housing for supporting the housing on the floor and against the wall; and handles on the housing such that the housing may be moved along the floor and against the wall such that epoxy material is applied to the floor and the wall through the open bottom end and the partially open back end forming an L-shaped layer of epoxy material on the floor and against the wall.Type: GrantFiled: May 13, 1987Date of Patent: May 16, 1989Inventor: Brian A. Dawson
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Patent number: 4830533Abstract: The invention provides an asphalt patching device capable of single-handed operation, reducing the time and expense of conventional asphalt patching. The device comprises an auger, a hopper with an associated spreader, a conveyor to transport asphalt from the auger to the hopper, and an operator's station. This device, exclusive of the hopper, is mounted to a wheeled frame which is pulled behind a dump truck carrying the asphalt. The frame is provided with wheels which permit the device to rotate substantially 180.degree. side-to-side behind the truck in order to effect asphalt patches on a roadway.Type: GrantFiled: June 15, 1987Date of Patent: May 16, 1989Assignee: Idaho Fluid Power, Inc.Inventor: Garl Q. Miller
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Patent number: 4780022Abstract: Disclosed is a road surface layer reproducing apparatus which comprises a mixture hopper, a scarifier, and a mixer means including a first mixer of single-shaft rotor system and a second mixer of twin-shaft rotor system.This apparatus is characteristic of a mixture hopper swingable laterally around its hopper supporting shaft, a sacrifier whose claws are so loosely fitted that the tip ends of the claws can follow up the contour of a road being remedied, a first mixer provided with a single-shaft rotor with a depth-measuring device for controlling the depth of penetration of the rotor into the asphalt of the road and mounted with screws for forming a windrow of an asphalt mixture to the center of the main body of the apparatus and a second mixer provided with parallel mounted twin-rotors which is vertically movable by a three-point supporting mechanism.Type: GrantFiled: September 24, 1987Date of Patent: October 25, 1988Assignee: Taisei Road Construction Company, Ltd.Inventors: Tatsuhiko Ohiba, Ken-ichi Igarashi
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Patent number: 4767234Abstract: Apparatus is provided for applying a sealing composition to a road surface. The apparatus includes supply means for the sealing composition and an applicator having a pressure chamber having adjustable-gap exit openings adjacent the road surface and having doctor blades which, when appropriately set, apply the composition to the road surface to a uniform and preset thickness across the width of the applicator. The apparatus includes means for propelling the applicator over a road surface.Type: GrantFiled: November 4, 1987Date of Patent: August 30, 1988Inventor: Rudolph R. Rizzo
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Patent number: 4757918Abstract: The spreading apparatus has a main hopper and at least one extension hopper, each having a discharge roller for flowable material such as chippings for road surfacing. The extension hopper is mounted adjacent the main hopper and movable longitudinally to enable variation of the combined width of the hoppers. A baffle cuts off communication between the discharge roller of the extension hopper and the major part of the interior of the extension hopper over a width corresponding to the longitudinal overlap between the main hopper and the extension hopper.Type: GrantFiled: March 4, 1987Date of Patent: July 19, 1988Assignee: The Phoenix Engineering Company LimitedInventor: James Ottewell