With Material Supply To Self-contained Side Forms, E.g., Slip-forms Patents (Class 404/105)
  • Patent number: 6386793
    Abstract: A device for smoothing a concrete paving surface including a machine frame that defines a predetermined working width perpendicular to a predetermined direction of travel of the machine frame, and a carriage system for moving the machine frame in the predetermined direction of travel. The device also includes a transverse smoothing portion carried by the machine frame for smoothing concrete paving across the predetermined working width that has two transverse structures with adjacent ends and remote ends and an articulating portion for connecting together the adjacent ends of the transverse structures. The device further includes a longitudinal smoothing portion for effecting longitudinal smoothing of concrete paving, and a moving portion for moving the longitudinal smoothing portion along the transverse structures over the entirety of the predetermined working width.
    Type: Grant
    Filed: January 28, 2000
    Date of Patent: May 14, 2002
    Assignee: Wirtgen GmbH
    Inventors: Martin Lenz, Holger Thieme, Karl-Heinz Runkel, Raymond Smolders
  • Publication number: 20020039519
    Abstract: A moveable tailpiece for use in association with a slip form on a curb forming machine. The tailpiece is selectively rotatable from a parked position, away from the slip form, to an engaged position at the end of the slip form. The tailpiece has the profile corresponding to a lowered curb profile as required to form, for example, a driveway access or handicap ramps. Utilizing the tailpiece in a curb formation considerably reduces the amount of manual finishing work required to produce an acceptable curb.
    Type: Application
    Filed: September 28, 2001
    Publication date: April 4, 2002
    Inventors: Mario Piccoli, Nicola Piccoli
  • Publication number: 20020021938
    Abstract: The curb forming and extruding machine forms continuous concrete edging while reducing and/or substantially eliminating voids, flat spots or weak areas caused by smoothed sections in the packed concrete. Also, concrete bridging in the hopper, and the associated problems, are reduced and/or eliminated. The curb forming machine includes a plunger which is driven along a path of travel including a forward position to force the curb forming material from the lower hopper section into and through the curb extrusion mold, an upward position so that the plunger extends into the upper hopper section, and a rearward position away from the curb mold and in the lower hopper section. The plunger extending into the upper section of the hopper eliminates concrete bridging and also scores the concrete as it packs it into the mold.
    Type: Application
    Filed: May 7, 2001
    Publication date: February 21, 2002
    Applicant: The Concrete Edge Company
    Inventors: Robert D. Matthias, James E. Kirkland
  • Publication number: 20010041094
    Abstract: In combination with a slipform paver, a new chain feeder is disclosed which is contained within the profile of a slipform paver and enables improved cycling time for the insertion of dowel bars. The chain feeder is used in combination with a plurality of dowel bar inserter stations. A single file dowel bar path is provided immediately above the plurality of dowel bar inserter stations overlying an upper dowel bar shuttle for each inserter station. The feeder includes a plurality of feeding lugs for pushing dowel bars along the single file dowel bar path parallel to openings in the upper dowel bar shuttle. This enables dowel bars to fall into the upper dowel bar shuttle until all inserter stations are loaded with dowel bars. When the dowel bars are inserted, the upper dowel bar shuttle moves relative to the lower dowel bar shuttle. This permits an upper shuttle bar opening in the upper dowel bar shuttle and the lower shuttle bar opening in the lower dowel bar shuttle to move into registration one with another.
    Type: Application
    Filed: July 18, 2001
    Publication date: November 15, 2001
    Inventors: Ronald M. Guntert, Gerald Lee Dahlinger, Richard W. Francis
  • Patent number: 6293728
    Abstract: Curb forming apparatus comprising a device for pushing hardenable material through a channel defined by a mold and a feed extending into the channel for forming a groove into the hardenable material and for supplying elongate stock to the groove.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: September 25, 2001
    Inventors: Richard C. Eggleton, Samuel Sebastian Eggleton, Bradley Gordon Graham
  • Patent number: 6171019
    Abstract: An apparatus, and related method, for laying sand and/or a sand reinforcement matrix onto a pre-prepared surface, includes an apparatus having a hopper for providing a matrix to be laid, a plunger at the forward end, in the sense of direction of movement of the apparatus, of the hopper and an element for reciprocating the plunger for taking material from the hopper and delivering it through an extrusion aperture in the rear thereof to an extrusion mold. The extrusion is effected by moving forwardly as pressure is applied to the matrix to be extruded and as the mold passes over the matrix. The extrusion of a sand, or a sand reinforcement, is compacted in the extrusion by using the weight of the apparatus against which the extrusion plunger acts together with the impaction of previously extruded material.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: January 9, 2001
    Assignee: StrathAyr Pty. Limited
    Inventors: Gabriel (Bill) Casimaty, Lee Simonis, Ronald John Lowry
  • Patent number: 6089785
    Abstract: 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: Grant
    Filed: September 11, 1998
    Date of Patent: July 18, 2000
    Inventor: Douglas Jerome Bergman
  • Patent number: 6086287
    Abstract: 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: Grant
    Filed: July 20, 1998
    Date of Patent: July 11, 2000
    Inventors: John Russell Sharpe, Alan Victor Sharpe, Ronald Douglas Sharpe
  • Patent number: 5997270
    Abstract: A flexible automated trowel for sliding formwork machine allowing the finishing of a continuous trapezoidal wall of the type having one rectangular side and one side inclined towards the top or with two angular sides. A mold supporting the trowel comprises two straight sides, an enlarging setback originating from a formwork line. A driveway cutter proceeds from the enlarging setback in the direction of the slope of the angular wall. The cutter may have a concave face which is to be placed against a moldable face to produce a superior convex face to the continuous wall. Materials like concrete for curbs, gutters, driveway entrances may be continuously poured and necessitate little or no finishing touches.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: December 7, 1999
    Inventor: Hubert LaBonte
  • Patent number: 5941659
    Abstract: An apparatus for inserting dowel bars into a concrete slab in association with a slip forming machine of a type having a frame with a mold attached thereto for shaping uncured concrete into a continuous concrete slab. The mold having a front and rear pan portion with a space therein completely across the mold. Dowel bar retainers are disposed above this space in the pan for holding dowel bars in readiness to be inserted into the concrete slab. A dowel bar inserter having individual fork assemblies is disposed above the dowel bar retainers for pushing the dowel bars down into the formed concrete slab, preferably all at one time. The dowel bar inserter is adjustable and removable. If removed, the forward and rear pan portions of the mold can be bolted together instead of being spaced apart.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: August 24, 1999
    Assignee: Gomaco Corporation
    Inventor: Gary L. Godbersen
  • Patent number: 5879104
    Abstract: 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: Grant
    Filed: December 18, 1996
    Date of Patent: March 9, 1999
    Assignee: Joseph Vogele AG.
    Inventor: Alfred Ulrich
  • Patent number: 5662431
    Abstract: The present invention provides a novel arrangement for selective mounting and demounting of a mold to a self-propelled slip-form paving machine. The paving machine basically comprises a frame, a drive engine, a hopper for concrete or another suitably flowable paving material and the aforementioned mold in the desired configuration of the pavement (curb, gutter, etc.) to be formed. The mounting and demounting arrangement comprises a set of hydraulically pivotable latching levers which engage with latching bars on the mold for quickly coupling of the mold to and from the machine frame without the necessity of manual manipulation of mounting bolts.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: September 2, 1997
    Assignee: Power Curbers, Inc.
    Inventor: John C. Colvard
  • Patent number: 5647688
    Abstract: A conventional telescoping frame on a paving tractor is provided with fixed male extension members for insertion to and attachment with a telescoping frame member. The conventional telescoping frame includes paired forward and paired rear side-by-side female tube members. Each forward and rear tube member conventionally acts for the telescoping support of male extension members which attach directly to the cylinder and crawler via a side bolster. Within the limits of expansion, the male extension members co-acting with clamps acting through the female tube members provide for both movement of the point of crawler support and expansion of the paving width of the tractor frame. Into this combination, extenders are added for attachment to the supported end of the male extension members interior of the female telescoping members.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: July 15, 1997
    Assignee: Guntert & Zimmerman Const. Div., Inc.
    Inventors: Ronald M. Guntert, William R. Cape
  • Patent number: 5615972
    Abstract: A conventional telescoping frame on a paving tractor is provided with fixed male extension members for insertion to and attachment with a telescoping frame member. The conventional telescoping frame includes paired forward and paired rear side-by-side female tube members. Each forward and rear tube member conventionally acts for the telescoping support of male extension members which attach directly to the cylinder and crawler via a side bolster. Within the limits of expansion, the male extension members co-acting with clamps acting through the female tube members provide for both movement of the point of crawler support and expansion of the paving width of the tractor frame. Into this combination, extenders are added for attachment to the supported end of the male extension members interior of the female telescoping members.
    Type: Grant
    Filed: July 20, 1995
    Date of Patent: April 1, 1997
    Assignee: Guntert & Zimmerman Construction Div., Inc.
    Inventors: Ronald M. Guntert, William R. Cape
  • Patent number: 5607256
    Abstract: An adjustable, floor tile mortar and grout spreading device for applying bonding material at a predetermined thickness in an efficient manner, and for spreading grout between floor tiles. The device comprises a telescopically adjustable rectangular frame having a leading edge and a trailing edge and a pair of downwardly extending sides for containing bonding material. The rectangular frame is telescopically adjustable to various widths and can be fixed at a particular width depending upon the size tile for the given installation. In one embodiment, the trailing edge incorporates a downwardly extending trowel blade having a conventional trowel blade edge with either a saw-tooth or square-toothed shape. The trowel blade is adjustable such that the device may be used for spreading various thicknesses of bonding material.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: March 4, 1997
    Assignee: McCleary Concepts & Creations, Inc.
    Inventor: Michael D. McCleary
  • Patent number: 5590977
    Abstract: A four track paver is disclosed having a frame which telescopes for transport to reduce the dimension of the machine in the direction of paving machine travel. A rectilinear tractor frame is provided. The frame includes four crawler tracks, one at each corner of the frame. The crawler tracks are directly supported on a hydraulic cylinder and mounted for pivotal movement about the axis of the hydraulic cylinder. The frame telescopes at side bolsters between the leading and trailing crawler tracks at the sides of the machine. When expanded, the paving machine has the full dimension required for paving. When contracted, the paving machine has a profile allowing convenient transport. Most importantly, such expansion and contraction of the machine in the direction of paving travel does not require substantial time for disassembly. As a consequence, a convenient method of loading and off loading to a hauling flatbed trailer exists.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: January 7, 1997
    Assignee: Guntert & Zimmerman Constr. Div. Inc.
    Inventors: Ronald M. Guntert, Steve Mickelson, J. Kenyon Schaeffer
  • Patent number: 5509759
    Abstract: A round , prestressed concrete pile having front and back flat portions and a method and apparatus for manufacturing the piles. The apparatus comprises essentially a plurality of horizontally placed piling molds and a concrete feeder and spreader. The concrete feeder and spreader are pulled across the pile molds by a spreader driver attached to a first end of the pile molds and the piles are removed from the pile molds by a cable tensioner and piling extractor attached to a second end of the pile molds. The piles are prestressed with flexible cable, wrapped with concertina wire, and embedded in concrete poured into the pile molds. The piles may be cast in different lengths by utilizing a bucket mold on the lower end.
    Type: Grant
    Filed: April 17, 1995
    Date of Patent: April 23, 1996
    Inventor: Klinton H. Keesling
  • Patent number: 5405214
    Abstract: 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: Grant
    Filed: August 12, 1993
    Date of Patent: April 11, 1995
    Assignee: Astec Industries, Inc.
    Inventor: Thomas R. Campbell
  • Patent number: 5190400
    Abstract: A spreading device for applying paving material behind a towing vehicle, has a fixed or extendable frame spreader box, an adjustable screed for screeding or spreading the paving material to a desired depth of spread, an adjustable compression roller for compacting the paving material, sides on the spreader box, adjusters on the screed and the compression roller to adjust the depth of spread of the paving material, and a pressure cylinder attached between the towing vehicle and the spreader box for applying pressure downwardly on the compaction roller while lifting upwardly on the towing vehicle.
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: March 2, 1993
    Inventor: Carl L. Sterner
  • Patent number: 5173005
    Abstract: A continuous concrete curb forming apparatus is formed by a vertical open end sleeve-like hopper having a channel-like member connected with its depending opening forming the shape of a conventional concrete curb as wet concrete poured in the hopper is released from the channel member.The hopper is connected with one end of a rectangular frame mounted on the forward end of a tractor. Hydraulically operated cylinders on the apparatus are connected with the tractor hydraulic system and a sensing means responsive to the position of a horizontal guide strand defining the position of the concrete curb to be extruded are connected with the hydraulic system through servo-mechanisms for guiding the tractor and maintaining the hopper and extruding channel in close spaced relation with the surface of a roadbed on which the concrete curb is to be extruded.
    Type: Grant
    Filed: May 31, 1991
    Date of Patent: December 22, 1992
    Inventors: John W. Henderson, Gary L. Green
  • Patent number: 5102267
    Abstract: A canal paving machine is described. The machine comprises an elongated frame which extends transversely across the canal and which is propelled the length thereof while water continues to flow in the canal. A concrete paver is supported on the frame and is designed to lay concrete on one of the sides of the canal and at least a portion of the bottom of the canal as the frame is moved along the length of the canal. Dam members encircle the concrete paving apparatus to protect it from water flowing in the canal during the paving operation.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: April 7, 1992
    Inventors: Thomas G. Bell, James N. Ferry, D. William Giroux, Kendall J. Kelly, Conway P. Narby, Gary L. Patburg
  • Patent number: 5059062
    Abstract: 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: Grant
    Filed: June 14, 1990
    Date of Patent: October 22, 1991
    Inventor: Pat Bresnahan
  • Patent number: 5051025
    Abstract: A slip form paving machine including a main frame supported by a front driven steering wheel and a pair of rear wheels that straddle the fore-and-aft center line of the main frame. An open top hopper is mounted on the frame and the lower end of the hopper communicates with an open bottom slip form, so that paving material, such as concrete fed into the hopper, will flow downwardly and be discharged from the slip form as the machine moves over the terrain. An outrigger frame is pivoted to the main frame about a horizontal axis and is located laterally of the rear wheels. The outrigger frame carries an outrigger wheel which is located laterally outwardly of the slip form and an inclined scraper blade is mounted forwardly of the outrigger wheel. When using a relatively wide slip form, the outrigger wheel is engaged with the terrain, and the rear wheel closest to the outrigger wheel is raised above the terrain so that the machine is supported on the outrigger wheel and the other of the rear wheels.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: September 24, 1991
    Assignee: M-B-W Inc.
    Inventor: Edward J. Taylor, Jr.
  • Patent number: 5046889
    Abstract: A spreader box for spreading cold mixed asphaltic concrete paving mixtures including a supporting frame or "bridge" attached to a left and right side plate. Within the spreader box and at the front portion of the box is situated a left and right side hydraulic motor or other power means, which is used to power a left and right side auger for lateral distribution of the paving mixture. Adjustment means on each end and in the middle to allow for vertical adjustment of the distribution auger. A left and right side "ROLLING SCREED" roll which has an adjustment means on each end and in the middle to allow for vertical adjustment of depth of spread.A left and right side compression roll which has adjustment means at each end and in the center for vertical adjustment of down pressure. Screed roll and compression roll connected by chain and sprocket or other power transfer means. One or more wheels or caterpillar tracks are mounted on each side plate.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: September 10, 1991
    Inventor: Carl L. Sterner, Jr.
  • Patent number: 5009544
    Abstract: A tool (23) for extruding a paved surface (39) is located behind tracks (2) and may thus have a width which is greater than the overall width perpendicular to the tracks. The tool is carried by a bridge frame (27) articulated on the frame (1), carried by the tracks, according to a transverse axis (X--X). At the rear, the bridge frame (27) rests on the freshly paved surface (39) via air cushions (32). A hauled rule (58) emits a ray (63) parallel to the surface (39) as detected by the rule. A detector (64) carried by the tool (23) and receiving the ray (63) detects the position in respect of height of the bed (23) relative to the surface (39). Jacks (38) correct the position in respect of height of the tool as a function of this detection. A ballast (42) is displaced automatically along the bridge frame (27) in order to adjust the pressure in the air cushions ( 32).
    Type: Grant
    Filed: August 14, 1989
    Date of Patent: April 23, 1991
    Inventor: Alain Chaize
  • Patent number: 4966490
    Abstract: 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 binde
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: October 30, 1990
    Inventor: James V. Hodson
  • Patent number: 4900186
    Abstract: A method is provided for converting a four-track slip form paver into an improved three-track slip form paver for applying a continuous slab of concrete onto a road surface and against a vertical abutment adjacent the road surface.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: February 13, 1990
    Inventors: George W. Swisher, Jr., Craig R. Gustin, Stuart W. Murray
  • Patent number: 4900185
    Abstract: A three sided spreader box has a pair of columnar members attached to one of its sides. A pair of sleeves slidingly engage the columnar members and allow the spreader box to be coupled to a dump truck having a side delivery conveyor in such a way that the spreader box is held in fixed horizontal relation to the discharge opening of the conveyor but is free to independently move vertically. A road wheel supports the spreader box and provides means for changing the elevation of the bottom edge of the rear wall of the spreader box. Chutework directs asphaltic material from the conveyor into the spreader box. An oiler periodically oils the chute to prevent sticking of the asphaltic material. The rear wall of the spreader may be hinged to allow the inclination from the horizontal of the bottom edge of the rear wall of the spreader box to be varied.
    Type: Grant
    Filed: February 10, 1989
    Date of Patent: February 13, 1990
    Inventor: Gary L. Foertsch
  • Patent number: 4878778
    Abstract: 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: Grant
    Filed: April 14, 1988
    Date of Patent: November 7, 1989
    Inventor: Pat Bresnahan
  • Patent number: 4863310
    Abstract: A road shoulder paving box, movable along a surface to be covered with paving material including carriage. The carriage rolls or skids along the surface to be paved and provides a receiver for accepting and holding paving material. The carriage also includes a container supported by the carriage having a chamber formed by a base and side wall portion. Such chamber includes an entrance and exit, as well as a movable partition for changing the volumetric capacity and the dimension of the chamber exit. The receiver and chamber are connected on the carriage of the paving apparatus such that paving material is transported or augered from the container to the receiver chamber.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: September 5, 1989
    Inventor: Jeffrey Reed
  • Patent number: 4828428
    Abstract: A double tamping bar vibratory screed is disclosed for use with a lay-down machine for laying a roadway. The screed consists of a main body portion having a strike-off plate on its leading edge which is followed by two tamping bars having independent eccentric shafts. These tamping bars are in turn followed by a vibrating plate which together perform the necessary compaction and provide a smooth, even surface with a variety of materials.The tamping bars are resiliently designed with a slightly rearward angle of attack and have horizontal material engagement faces which contact the material to be compacted and provide the desired result.
    Type: Grant
    Filed: October 23, 1987
    Date of Patent: May 9, 1989
    Assignee: Pav-Saver Manufacturing Company
    Inventor: Morell Anderson
  • Patent number: 4802788
    Abstract: A road marking apparatus has a hopper mounted upon a pair of side runners that straddle an outlet in the bottom of the hopper. A doctor blade is mounted for reciprocal vertical movement in sliding contact with the outside of a rear wall of the hopper adjacent the hopper outlet between the runners. A floor gate is mounted for reciprocal horizontal movement into and out of contact with a bottom edge of the hopper rear wall and the doctor blade for opening and closing the hopper outlet.
    Type: Grant
    Filed: January 13, 1988
    Date of Patent: February 7, 1989
    Assignee: Pave-Mark Corporation
    Inventor: Martin A. Smith
  • Patent number: 4789266
    Abstract: A self propelled construction apparatus for continuously forming a paving material on a suitable surface such as the ground. The apparatus is capable of performing a variety of molding operations. The main frame of the apparatus is so constructed as to be adjustably extended outwardly longitudinally for wide width paving. Also, the apparatus can be laterally adjusted to perform narrow width paving. The apparatus may have an offset mold on either side thereof for offset molding or a mold underneath the main frame for molding between the ground engaging means. Further, means for mounting and connecting the mold to the main frame allows the mold to be moved angularly on a vertical axis from an operative position alongside the main frame to a transport position at the end of the substantially aligned with the main frame.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: December 6, 1988
    Assignee: Power Curbers, Inc.
    Inventors: Samuel Y. Clarke, Jr., Clifford J. Griffith, Jr.
  • Patent number: 4778305
    Abstract: A slip-form paver is provided which is capable of paving a lane of concrete or other material in much the same manner that asphalt is spread as a top paving surface for a roadway. Spreading and levelling means are not restricted to the space between the traction members of the tractor portion of the machine, but are arranged behind such members so that the slab may be wider than, or offset, with respect to the distance between such traction members. The mounting of the final paving tool is capable of lateral movement independently of the steering of the tractor members so as to enable it to turn on a different radius. The elevation of this tool may also be controlled from a string line or the like so as to provide the desired pavement surface contour.
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: October 18, 1988
    Assignee: Rexworks Inc.
    Inventors: Paul E. Ritchey, Joseph L. Jarboe, deceased
  • Patent number: 4708628
    Abstract: The proposed apparatus is intended for use in industrial and civil engineering for molding high-strength thin-wall fibrous concrete articles.The apparatus comprises a stationary tray, and a movable gantry carrying a concrete mixer with a concrete levelling member, and a concrete compacting roller arranged in succession above the tray. The working member has the form of a plurality of rotating rod-like spirals of equal pitch and diameter arranged in the vertical plane to extend through the length of the compacting roller above the tray. The distance between the vertical axes of the adjacent spirals is equal, and is smaller than the diameter of the spirals.
    Type: Grant
    Filed: December 3, 1986
    Date of Patent: November 24, 1987
    Assignee: Nauchno-Issledovatelsky Institut Stroitelstva I Arkhitektury
    Inventors: Robert M. Mkhikian, Suren G. Shaginian, Temur G. Markarian, Georgy K. Khaidukov, Sofia V. Velidzhanian, Artashes R. Manukian, Artur K. Karapetian, Aram V. Kazarian, Robert R. Airapetian
  • Patent number: 4678364
    Abstract: A forming tool made to be drawn by tractor-feeder means of any type. The tool comprises two arms mounted to pivot by their front ends on the tractor-feeder. At the back end of the arms is mounted a needle ramp for immersion vibration so as to keep the concrete delivered and distributed by the tractor-feeder in the liquid state before its forming. The forming means comprise an upper element which has a front part in the form of a shield for the regulation of the amount of concrete introduced under the form, and a back part serving as forming upper plate and simultaneously as back reference and support means for levelling the tool, the latter being entirely carried by the formed concrete layer. Side forming plates are also provided.
    Type: Grant
    Filed: March 13, 1986
    Date of Patent: July 7, 1987
    Assignee: VIAFRANCE and State of France as represented by the Ministry of Urban Planning, Housing and Transportation, Central Laboratory of Roads and Bridges
    Inventors: Yves Charonnat, Lucien Larribe
  • Patent number: 4636110
    Abstract: A sliding shuttering machine for constructing continuously reinforced concrete roadways or pavements, comprising a main frame provided with transversely spaced ground engaging members allowing it to move over the ground, two lateral shutterings spaced apart transversely and extending longitudinally between the ground engaging members, a main extrusion plate extending transversely between the lateral shutterings and forming therewith a tunnel shaped sliding shuttering for extruding a mass of concrete and molding same into a thick pavement as the machine moves forward, adjustment means mounted between said main frame and said main extrusion plate for adjusting the vertical position thereof with respect to the ground and, consequently, the thickness of the concrete pavement to a desired value, an additional extrusion plate which extends transversely between the lateral shutterings and which is situated at a distance in front of said main extrusion plate and at a height with respect to the ground which is less th
    Type: Grant
    Filed: November 13, 1984
    Date of Patent: January 13, 1987
    Assignee: GTM-Entrepose
    Inventor: Jean-Pierre Augoyard
  • Patent number: 4609303
    Abstract: Device for slip forming concrete pathways such as golf cart paths, driveways, sidewalks and the like. A concrete slip form is continuously moved forward to form concrete aggregate into a smooth, uniform member, and comprises a mold member having an open end for receiving the concrete aggregate and a lower end for discharging the aggregate; means for moving the mold member to effect the discharge of the concrete member; means for forming and contouring the ground surface prior to pouring the aggregate; and means for compacting and smoothing the concrete aggregate prior to discharge from the mold.
    Type: Grant
    Filed: August 28, 1984
    Date of Patent: September 2, 1986
    Inventor: O. R. Shumaker
  • Patent number: 4566822
    Abstract: A construction machine is provided for use in the controlled distribution of formable concrete along a base surface of predetermined configuration. The machine includes a self-propelled main frame movable along the base surface. The main frame is provided with a front section and an elongated trailing section extending rearwardly therefrom. A first hopper is mounted forwardly of the frame front section for receiving a load of formable concrete. An elongated mule is mounted transversely on the frame trailing section. The mule is spaced a substantial distance rearwardly of the frame front section and includes an elongated second hopper having the underside thereof conforming substantially to the predetermined configuration of the base surface. A conveying means is carried on the main frame and effects controlled transfer of the formable concrete from the first hopper to opposite end portions of the second hopper. Vibrating means is carried on the mule.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: January 28, 1986
    Assignee: Miller Formless Co., Inc.
    Inventor: Charles P. Miller
  • Patent number: 4526493
    Abstract: One concrete slab is laid adjacent to a previously laid slab with a slip forming machine while the concrete mix of the previously laid slab is still plastic. The slip forming machine includes a tractor of the type used with conventional slip-form mules, and in addition a slip-form mule that has the capability of laying a slab of plastic concrete mix against a previously laid slab of mix that is still plastic. The mule has a frame that is attached to the tractor, and the frame carries a hopper and slip form which are united into a single unit, with the hopper opening into the front end of the slip form. The unitized hopper and slip form pivot on the frame about a vertical axis that extends through the front of the frame. The rear end of the slip form moves on a transverse slideway and a hydraulic cylinder is connected between the frame and slip form to urge the side of the slip form snugly against the edge of the previously laid slab as concrete mix extrudes from the slip form to provide the adjacent slab.
    Type: Grant
    Filed: May 26, 1983
    Date of Patent: July 2, 1985
    Assignee: H. H. H. Concrete Paving Co.
    Inventors: Howard H. Hall, Norman Goff
  • Patent number: 4489658
    Abstract: A railway track working machine is provided with a vibratory ballast surface compactor. The compactor has a top ballast engaging plate and a second ballast engaging plate arranged to work in association with top ballast plate (hinged or otherwise) along an outer longitudinal edge of the top plate. The top plate has a leading edge and a trailing edge and a ballast compacting under-surface, the leading edge being wider in a direction tranversely of the track than the trailing edge and the compactor is mounted so as to present, in ballast compacting operation, the top plate leading edge at a higher level above the ballast surface than the trailing edge, the under-surface of the top plate sloping rearwardly in the direction of track working from the leading edge to the trailing edge. The trailing edge is adjusted, in operation, so as to be located at a selected level for ballast compaction.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: December 25, 1984
    Inventor: Helmuth von Beckmann
  • Patent number: 4384806
    Abstract: Apparatus for extruding a continuous concrete structure along a surface such as a curb and gutter. The apparatus includes an open bottom hopper for containing a supply of concrete mounted to a vehicle. An open bottom mold extends rearwardly from the open bottom of the hopper and causes the concrete flowing from the hopper onto the surface to be provided the proper cross-sectional shape as the vehicle moves along the surface. The lower leading face of the hopper is slanted rearwardly. Vibrators are immersed within the concrete overlying the open bottom of the hopper and in an area generally horizontal with and to the rear of the lower leading face of the hopper. The combination of the slanted lower leading face and the properly situated vibrator causes the apparatus to creep or walk forward so that very little if any motive power need be applied to the vehicle.
    Type: Grant
    Filed: February 24, 1981
    Date of Patent: May 24, 1983
    Inventor: Edgar J. Taylor, Jr.
  • Patent number: 4323321
    Abstract: Track driven machines useful in slip form and other road paving operations embodying a support frame, with hollow frame members serving as cooling reservoirs for hydraulic fluid, supported by hydraulic cylinders on a pair of power driven, endless tracks. The frame is maintained in a pre-oriented plane as the machine moves along terrain by a hydraulic fluid control system operating cylinders in response to torsion bar-registered twist of the frame, string-line feeler means and a level controller. Two winches driven by respective hydraulic motors are mounted ahead of each track. Cables wound thereon may be attached to stationary objects to provide auxiliary forward drive(s) for each track, or in emergencies as the replacement drive for a disabled track.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: April 6, 1982
    Assignee: Pav-Saver Mfg. Co.
    Inventor: Charles H. Dale
  • Patent number: 4310293
    Abstract: A machine for compacting and moulding concrete mix or other plastic materials comprises, in combination:(a) a body structure;(b) a tunnel shaped moulding member having a top and two sides and open at its bottom, the moulding member being attached to the body section;(c) an opening in the top of the moulding member adjacent to the body section;(d) a hopper adapted to carry concrete mix or other plastic materials, and feed the mix or materials to the opening, the hopper being attached to the body structure;(e) a substantially vertical ram plate having a shape which corresponds to the cross-sectional shape of the moulding member, the ram plate being located within the moulding member and being adapted to move reciprocally from a first position adjacent to the body structure to a second position wholly within the moulding member, without oscillation of the ram plate;(f) means to cause the reciprocal movement of the ram plate, the means being carried by the body structure, and(g) means supporting the body structur
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: January 12, 1982
    Inventor: Richard C. Eggleton
  • Patent number: 4280800
    Abstract: A support frame to span and to be moved over the surface of a concrete slab on wheels running on rails extending along side edges of the slap, and having a hopper for depositing a layer of finishing material on the slab surface ahead of at least one roller carried by the frame, said finishing material being confined on the surface by side walls depending from the frame and overlapping the side edges of the slab. Power means rotates the roller, and this roller can be adjusted vertically relative to the frame to adjust the thickness of finishing material being rolled onto the slab surface.
    Type: Grant
    Filed: September 13, 1979
    Date of Patent: July 28, 1981
    Assignee: Dyform Engineering Limited
    Inventor: Christopher B. Bunn
  • Patent number: 4197032
    Abstract: An apparatus for concurrently preparing a ground surface and forming a continuous strip of paving material thereon, and which is characterized by the ability to simultaneously grade the ground surface substantially coextensively with the successive slip forming of the pavement material. The apparatus includes a ground trimmer and a following slip former, with the trimmer being laterally translatable with respect to the slip former so that the concurrent grading and slip forming functions can be performed along a curvilinear path while closely maintaining the lateral alignment of the graded ground surface with the successive placement of the paving material. Thus excessive ground surface is not graded, and no area requiring preparation is omitted.
    Type: Grant
    Filed: August 2, 1978
    Date of Patent: April 8, 1980
    Assignee: Power Curbers, Inc.
    Inventor: Joseph V. Miller
  • Patent number: 4159890
    Abstract: A paving material extrusion molding apparatus for continuously laying or molding a paving material wherein the paving material supplied into hoppers is conveyed into a molding element by a plurality of screw conveyors, the paving material is compacted or consolidated by screw thrusts equal to the frictional force produced by the dead weight of the extrusion molding apparatus, a reaction force created by the compaction or consolidation is utilized to float off the entire extrusion molding apparatus, and a reaction force created by the conveyance of the paving material being continuously fed serves to move the extrusion molding apparatus along the predetermined path.
    Type: Grant
    Filed: December 7, 1977
    Date of Patent: July 3, 1979
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Koji Ogaki, Katsu Hirosawa, Masashi Kaminishi, Yoshinori Nozawa, Hiroshi Kakuta, Akio Aoki
  • Patent number: 4101237
    Abstract: A roadbed and a curb are formed as a single integral structure by slip-forming concrete material using a tracked vehicle supporting a roadbed slip-form and a curb slip-form which extend along opposite sides of a track of the vehicle so leaving a gap between the formed roadbed and curb to allow passage of the vehicle track. A filler portion of concrete material passes rearwardly through a passageway in the roadbed slip-form above the final top surface of the roadbed and such filler portion of concrete material is transferred transversely outwardly to fill such a gap rearwardly of the vehicle track. Finally, the top surface of the material so transferred and that of the roadbed from where such material was transferred are smoothed.
    Type: Grant
    Filed: August 16, 1977
    Date of Patent: July 18, 1978
    Inventor: Gerald Anthony Catenacci
  • Patent number: 4097173
    Abstract: This machine consists primarily of a frame, which is supported by wheels, and the frame supports three spaced-apart self-placing form units, which operate in conjunction with finishing rollers. The self-placing form units of the machine are faced with endless synthetic rubber belts, which are backed up by hinged steel pads, and the top and bottom of the self-placing form units are sealed with a plate having a lip at the edge, to overlap the synthetic rubber, so as to repel any foreign matter, or concrete mix, from entering the inside of the units. The machine is reversible in direction when desired, and is used for concrete curb and gutter construction.
    Type: Grant
    Filed: September 23, 1977
    Date of Patent: June 27, 1978
    Inventor: John R. Tout
  • Patent number: 4084928
    Abstract: An improved barrier forming apparatus and method whereby a barrier is formed continuously over a surface, the barrier having continuous reinforcing rods extending the length of the barrier and having cage reinforced standard supports at predetermined intervals along the length of the barrier. An improved barrier forming assembly is disclosed comprising a concrete forming member having a form cavity extending therethrough; a concrete passing member having a concrete delivery opening for passing concrete or the like to the form cavity; and a positioning assembly comprising a support shaft and a door member pivotally supported at a forward end of the concrete forming member, the barrier being extrudable continuously via the form cavity from a rearward end of the concrete forming member.
    Type: Grant
    Filed: November 3, 1976
    Date of Patent: April 18, 1978
    Assignee: CMI Corporation
    Inventor: Adolph R. Petersik