Screed Or Drag Patents (Class 404/118)
  • Publication number: 20110097150
    Abstract: A screed working apparatus comprising a frame adapted to be mounted on a vehicle, a first elongate beam being mounted on said frame to extend transverse to the normal direction of movement of the apparatus for levelling for levelling loose or plastic materials, wherein a vibration imparting device is coupled to, or mounted on, said first elongate beam to impart vibratory motion to said first elongate beam.
    Type: Application
    Filed: October 26, 2010
    Publication date: April 28, 2011
    Inventor: Trevor Hamilton SINNAMON
  • Publication number: 20110091277
    Abstract: A concrete screed apparatus is provided which may be used by a pair of workers, each of whom has the screed apparatus mounted to one of their legs or feet. The screed apparatus enables concrete to be easily screeded and properly finished without the workers doing the same on their knees or bending from the waist. The screed apparatus is adapted to move a screed board back and forth across the concrete to be finished which is also vibrated as it is being screeded.
    Type: Application
    Filed: October 19, 2009
    Publication date: April 21, 2011
    Inventor: Richard Biodrowski
  • Publication number: 20110091278
    Abstract: In a screed with a basic screed and at least one extendable screed movable relative to the basic screed with a hydraulic cylinder and an electro-hydraulic control comprising a magnet-actuated directional control valve for at least controlling the direction of the hydraulic cylinder, the directional control valve for changing the rate of motion of the hydraulic cylinder is guided by an operator or automatically and is a proportional directional control valve (W) with proportional-electric direct actuation or proportional-electric-hydraulic pilot control. The proportional directional control valve for the hydraulic cylinder is connected on the actuation side with an electro-hydraulic control of a hydraulic system of the road finishing machine.
    Type: Application
    Filed: October 19, 2010
    Publication date: April 21, 2011
    Applicant: JOSEPH VOGELE AG
    Inventors: Roman Munz, Martin Buschmann, Achim Eul
  • Patent number: 7909533
    Abstract: A wheeled screeding device includes a wheeled support having a frame portion supported by at least one wheel, with the at least one wheel defining an axis of rotation. A screed head is mounted to the frame portion and is balanced such that the screed head is at least partially supportable on an uncured concrete surface. The screed head is adapted to impart a force onto the uncured concrete surface. An adjustment device may be operable to adjust a balance of the wheeled support about the axis of rotation to adjust the force imparted by the screed head. The screed head may be pivotable about an axis generally normal to the axis of rotation of the wheel and relative to the at least one wheel to adjust an angle of the screed head relative to the axis of rotation of the wheel.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: March 22, 2011
    Assignee: Somero Enterprises, Inc.
    Inventors: Philip J. Quenzi, Russ E. Stein, Mark A. Pietila, Carl B. Kieranen, Philip D. Halonen, Howard E. Hohmann, Jr.
  • Patent number: 7909534
    Abstract: An endgate comprising a mounting bracket adapted to be attached to a screed assembly, a pivoting plate adapted to be pivotally attached to the mounting bracket, a sliding plate, a pavement contacting surface and a support adapted to be pivotally moved with the pivoting plate, a means for applying force to the pavement contacting surface disposed between the support and the sliding plate, a first adjustment means adapted to adjust the amount of force applied by the means for applying force to the pavement contacting surface and a second adjustment means adapted to adjust the angle of the pavement contacting surface. A method comprising providing such an endgate, adjusting the angle of the pavement contacting surface and adjusting the amount of force applied by the means for applying force to the pavement contacting surface.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: March 22, 2011
    Assignee: Astec Industries, Inc.
    Inventors: Kevin Comer, Jeff Cartwright
  • Publication number: 20110044758
    Abstract: In the production of road surfaces of asphalt and concrete (33), it has been necessary hitherto to use different road pavers, which requires additional complexity, in particular when a wearing course (32) of concrete (33) is to be applied to a base (31) of asphalt. The invention provides to produce road surfaces of concrete (33) with a road paver intended for the processing of asphalt in that suspended vibrating bodies (23) are used which are inserted at least partially into the concrete (33) to be compacted. As a result, a road surface of concrete (33) can be produced with a road paver intended for the laying of road surfaces of asphalt. A laying screed (17) of the road paver is preferably guided rigidly, that is to say non-height-adjustably.
    Type: Application
    Filed: August 9, 2010
    Publication date: February 24, 2011
    Applicant: Dynapac GmbH
    Inventor: Ronald Utterodt
  • Publication number: 20110044757
    Abstract: A floating screed device includes: an elongated float, rigid and spaced-apart rods with the tops thereof defining a planar region having a planar bottom for floating on plastic concrete, a device coupled to the float to determine elevation thereof relative to a target elevation in the plastic concrete, and a support and adjustment (S/A) mechanism that moves the rods based on the elevation so-determined as the floating screed device is moved through a volume of the plastic concrete that is unfinished. In general, the rods are moved by the S/A mechanism such that the planar region defined by the rods rotates about an axis that is parallel to the rods and perpendicular to the longitudinal axis of the float.
    Type: Application
    Filed: August 24, 2009
    Publication date: February 24, 2011
    Inventors: Albert D. Frankeny, II, S. Allen Face, III
  • Patent number: 7878469
    Abstract: A novel adjustable screed bar holder used to support screed bars used in concrete finish work. The holder moves along a supporting device such as a stake, pin, or post. A lever on the holder is coupled to a cam wheel such that movement of the lever will disengage the cam wheel from the stake. When the cam wheel is in the disengaged position the holder is free to move along the stake until the lever is released and the cam wheel secures against the stake. Typically the holder will be used to hold a piece of lumber, pipe, rebar, or tubing parallel to the forms used in concrete placement. A screed may then be run over the concrete while it rides on the screed bar supported by the adjustable holder.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: February 1, 2011
    Inventors: Bryan Hasenoehrl, Kevin Gordon
  • Publication number: 20110002738
    Abstract: The invention relates to a device for compacting road paving materials, comprising a screed board which is fastened on a road finisher and extends at a right angle to the direction of travel of the road finisher and a tamper that is mounted in front and/or behind the screed board. Said tamper has a tamper strip (9) that can be driven to perform a striking upward and downward movement and the interior of which is equipped with an electrical heating unit in the form of a rod-shaped heating element (12) that can be clamped into a recess of the tamper strip. The device according to the invention is characterized in that the heating element is a tubular heating unit the coil (20) of which is folded at least once on a free end of the tubular heating unit, thereby forming two adjacent rods (33, 34) that are connected to a power supply unit in a common terminal block (14).
    Type: Application
    Filed: January 6, 2009
    Publication date: January 6, 2011
    Inventors: Anton Mahler, Marc Niggemann, Oliver Lachmann
  • Publication number: 20110002737
    Abstract: The invention relates to a device for compacting road paving materials, comprising a screed board which is fastened on a road finisher and extends at a right angle to the direction of travel of the road finisher and a tamper that is mounted in front and/or behind the screed board. Said tamper has a tamper strip that can be driven to perform a striking upward and downward movement and the interior of which is equipped with an electrical heating unit in the form of a rod-shaped heating element that can be clamped into a recess of the tamper strip. The device according to the invention is characterized by a spring accumulator receiving the heating element in the direction of the striking upward and downward movement for clamping the heating element.
    Type: Application
    Filed: January 6, 2009
    Publication date: January 6, 2011
    Applicant: ABG Allgemeine Baumaschinen-Gesellschaft mbH
    Inventors: Anton Mahler, Marc Niggemann, Oliver Lachmann
  • Patent number: 7854565
    Abstract: A method of establishing a desired grade of an uncured concrete surface or subgrade surface includes providing a wheeled apparatus having a wheeled support and a plow assembly, which may include a plow member for establishing the desired grade and/or a vibrating member for vibrating and smoothing the concrete. The down pressure of the plow assembly may be adjusted when the wheeled support is moved in a rearward direction. The elevation of the plow member may be controlled when a direction signal is indicative of the wheeled support stopping and/or moving in the forward direction. The rearward speed of the wheeled support may be reduced in response to a detection of a surface irregularity of the subgrade, and the frame portion and/or the plow assembly may be controlled to substantially maintain the plow assembly at a desired orientation when the wheel engages the detected surface irregularity.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: December 21, 2010
    Assignee: Somero Enterprises, Inc.
    Inventors: Philip D. Halonen, Russ E. Stein, Mark A. Pietila, Michael R. Keranen, Carl B. Kieranen
  • Patent number: 7850396
    Abstract: A method and apparatus for screeding post tensioned concrete slabs includes providing a screeding device having a wheeled support having a frame portion and spaced apart wheels rotatably mounted to the frame portion. The screeding device has a screed head mounted to the wheeled support. The screed head includes a vibrating member and a grade setting device adjustably mounted to the vibrating member. The vibrating member is at least partially supportable on the uncured concrete surface, and the grade setting device is adjustable relative to the vibrating member to strike off excess uncured concrete in front of the vibrating member to establish the desired grade or level of the uncured concrete. The screed head may be pivotable relative to the wheeled support about a longitudinal pivot axis extending along the screeding device and in the direction of travel of the screeding device.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: December 14, 2010
    Assignee: Somero Enterprises, Inc.
    Inventors: Mark A. Pietila, Philip D. Halonen, Jason M. Wiitanen, Jeffrey W. Torvinen
  • Publication number: 20100296868
    Abstract: A road paver F having a primary driving aggregate P with a combustion engine M, particularly a diesel engine, the crankshaft 22 of which extends to a power output region within a casing 20 of a clutch and/or a flywheel. A generator R is driven by the primary driving aggregate P at least for supplying electric heating devices H of the road paver F with electric power. A distribution gear mechanism 30 for pumps is mounted to the primary driving aggregate P. The generator R being a generator with permanent magnet excitation is mounted to or into or in lieu of the casing 20. A drive train 29 connected or connectable to the power output region of the crankshaft 22 extends to the distribution gear mechanism 30 for pumps and through the generator R.
    Type: Application
    Filed: March 11, 2010
    Publication date: November 25, 2010
    Applicant: JOSEPH VOEGELE AG
    Inventor: Arthur Braun
  • Publication number: 20100296866
    Abstract: In a paver F comprising a combustion engine M, in particular a diesel engine, of a primary driving aggregate P, functional units having hydraulic pumps 23, 30 to 33 inclusive a travel pump aggregate 23 which can be driven by the combustion engine M for supplying at least one travel drive 16, a generator G for supplying electric heating devices H of the paver F and/or of a paving screed B of the paver F with electric power, the generator G is driven permanently while at least one pump 23, 30 to 33 selectively can be disconnected from the combustion engine via at least one shiftable clutch K1, K2, K3. During a heating-up phase of electric heating devices H via the permanently driven generator G at least one of the pumps is disconnected. During transport travel at least one pump of the functional units, except the permanently driven travel pump aggregate 23 and the generator G, is disconnected.
    Type: Application
    Filed: March 11, 2010
    Publication date: November 25, 2010
    Applicant: JOSEPH VOEGELE AG
    Inventors: Arthur Braun, Christian Pawlik, Thomas Schmidt
  • Publication number: 20100284742
    Abstract: A hydraulic control arrangement for activating a double-acting actuating cylinder, which is connected on the piston side to a road finisher and on the piston-rod side to a screed of the road finisher, is provided. The hydraulic control arrangement includes a supply connection, a tank connection and two consumer connections, in which a loading pressure or a relief pressure is applied to the piston of the actuating cylinder via the consumer connections. The loading pressure or relief pressure is controlled as a function of a defined operating state, and, in a controlling-the-screed-load operating state, the relief pressure supplied to the actuating cylinder on the piston-rod side is controlled via a proportional pressure control valve.
    Type: Application
    Filed: March 9, 2010
    Publication date: November 11, 2010
    Applicant: BOMAG GMBH
    Inventors: Hermann Christ, Irina Hagen
  • Publication number: 20100226718
    Abstract: Today's process of screeding, or evening out, wet concrete is an inefficient and arduous system requiring two (or more) men, a 2×4 wooden beam, and wooden forms to level the surface of wet concrete. The Obergfoll Concrete Screed Level, or “OCSL,” allows a single person to screed concrete as accurately, more easily and in less time than it takes the standard two man screeding technique used today. The OCSL is uniquely designed to allow a single person to accurately level and screed wet concrete. The screeding bar also incorporates a leveling bubble allowing for continuous verification of even leveling throughout the screeding process. The ergonomically designed dual handles act as convenient and efficient levers, allowing easy and accurate screeding of heavy wet concrete by one single operator, instead of the customary two or three person job.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 9, 2010
    Inventor: Mathew Obergfoll
  • Publication number: 20100221067
    Abstract: A lightweight, powered screed machine for screeding the surface of a quantity of concrete having a pair of rails extending to either side, includes a frame having a handle arrangement, for manual engagement by an operator, and an elongated screed blade extending between the support rails. The machine further includes a powered vibration mechanism mounted on the frame. A pair of posts or masts are provided with one of the pair of posts attached to the frame adjacent each end of the blade and extending upward. Each of a pair of supports is positioned adjacent an associated end of the blade. Each support has rollers for engaging and riding on one of the pair of support rails, and each of the supports is attached to the frame so as to support the frame over the concrete. Each of the supports includes a linear actuator for raising and lowering the frame adjacent the rail. A pair of laser receivers is provided with each of the pair of laser receivers mounted on an associated one of the pair of posts.
    Type: Application
    Filed: February 27, 2009
    Publication date: September 2, 2010
    Applicant: TRIMBLE NAVIGATION LIMITED
    Inventor: Kent Kahle
  • Publication number: 20100209190
    Abstract: In a paving screed E for a road paver F, the paving screed E comprises a base screed G and extension screeds A at the front side of the base screed, the extension screeds A being extendable and retractable and pivotable relative to the base screed G, a base guiding structure 18 pivotable relative to the base screed G, a guiding sub-structure 17 slidably guided in the base guiding structure 16, an extension guiding structure 16 slidably guided in the guiding sub-structure 17, and a sole plate frame structure 14 mounted to the extension guiding structure 16 and carrying an extension screed sole plate 11, substantially vertical guidances 20 and elevation adjustment assemblies 21 between the sole plate frame structure 14 and the extension guiding structure 16, the vertical guidances 20 and the elevation adjustment assemblies 21 facilitating to adjust the elevation of the sole plate frame structure 14 and the extension screed sole plate 11 parallel to itself and relative to the extension guiding structure 16.
    Type: Application
    Filed: May 5, 2009
    Publication date: August 19, 2010
    Applicant: Joseph Voegele AG
    Inventors: Roman Munz, Frank Grimm, Martin Buschmann
  • Publication number: 20100202831
    Abstract: An improved screed for contouring cementitious material around a central drain is described. The screed includes a drain pivot element adapted and constructed to be rotatably secured in a drain depression. An elongated material contact element adapted and constructed to uniformly contour the surface of cementitous material is provided. A height adjustment element connects the drain pivot element to the material contact element. The height adjustment element is used to set the operating height of the material contact element, the drain pivot element is secured to the drain, and the material contact element is placed in contact with the cementitious material and rotated to contour the material surrounding the drain into a uniform, generally frustoconical configuration generally concentric with the drain.
    Type: Application
    Filed: February 6, 2009
    Publication date: August 12, 2010
    Inventor: John Saranga
  • Publication number: 20100189499
    Abstract: A floating screed device has a first section for cutting through plastic concrete and a second section for floating on the plastic concrete. The two sections are pivotally coupled for rotational movement about a pivot point. Elevation of the second section is measured and used to rotate the first section as the floating screed device is moved through a volume of the plastic concrete that is unfinished. As a result, the second section pitches to follow the first section.
    Type: Application
    Filed: January 29, 2009
    Publication date: July 29, 2010
    Inventors: Albert D. Frankeny, II, S. Allen Face, III
  • Publication number: 20100183370
    Abstract: A rotating cylinder cement screeding system having a drive assembly and handle at one end for powering and controlling the screeding system. The rotating cylinder may be defined by one or more tubular screed roller sections of varying lengths, thereby allowing a user to customize the length of the system to match a specific cement pour. Further, each tubular screed roller section may be supplied with a male and female end for interlocking with each other and for receiving a variety of add-on attachments. At least one riser assembly may be interconnected to a drive assembly end and/or a non-driven end of the rotating cylinder cement screeding system. The riser assembly may elevate the rotating cylinder a distance above a finished slab to prevent the rotating cylinder from contacting the finished slab during a screeding operation.
    Type: Application
    Filed: January 22, 2009
    Publication date: July 22, 2010
    Inventor: Dennis K. Lura
  • Publication number: 20100150650
    Abstract: According to a method for laying a paving mat with a paving screed, the paving mat comprising a lane and a downwardly inclined slope beginning at a transition to the outside, the paving screed comprising a base screed and at least one extension screed which is extendable and retractable by a sliding motion in a sliding direction parallel to the base screed for varying the working width of the paving screed, the base screed and the extension screed having sole plates at the lower sides, with the sole plate of the extension screed being inclined laterally for forming the slope with the angle of the slope, a lateral position of the transition is first set relative to the base screed, during or after setting the lateral position a height difference is measured perpendicular to the planum between a fixed measuring location at the base screed and a location along a reference line extending parallel to the sole plate of the extension screed, the measured height difference being converted into a target value, and in
    Type: Application
    Filed: November 2, 2009
    Publication date: June 17, 2010
    Applicant: JOSEPH VOEGELE AG
    Inventors: Martin Buschmann, Roman Munz
  • Publication number: 20100150651
    Abstract: A paving screed comprises a base screed and extension screeds each of which is support via an extension guiding structure at a guidance fixed in the base screed such that each extension screed can be extended and retracted. A multiple point suspension is provided between the extension guiding structure and the guidance. A frame carrying the sole plate of the extension screed A is arranged below the extension guiding structure. Substantially vertical adjustment assemblies make it possible to adjust the height position of the frame via drives. A lateral inclination adjustment assembly is provided structurally separated from the adjustment assemblies either for the frame or within the frame for the sole plate of the extension screed.
    Type: Application
    Filed: November 12, 2009
    Publication date: June 17, 2010
    Applicant: Joseph Voegele AG
    Inventors: Martin Buschmann, Roman Munz
  • Patent number: 7726905
    Abstract: An apparatus for reconditioning a paved surface includes a vehicle adapted to traverse the paved surface. The vehicle has a manifold with a plurality of jets disposed within a surface adjacent the paved surface and at least one of the jets has a high temperature, high pressure nozzle. The high temperature, high pressure nozzle has a hard material with a hardness of at least 2,000 HK. The jets are in fluid communication with a fluid reservoir through a fluid pathway, and the fluid pathway has a pressurizing mechanism and a heating mechanism for bringing the fluid to a high temperature and a high pressure.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: June 1, 2010
    Inventors: David R. Hall, David Wahiquist, Timothy Duke
  • Publication number: 20100129153
    Abstract: A vibrating screed for surfacing concrete includes a surfacing blade, a vibration-causing assembly, a steering assembly with a handle assembly and a grip member in communication with the hand assembly. A vibration reducing link is disposed between the grip member and the handle assembly so that when the vibration-causing assembly imparts a vibratory motion to the blade and the handle assembly, the vibration reducing link dampens the vibratory motion transmitted between the handle assembly and the grip member.
    Type: Application
    Filed: November 27, 2009
    Publication date: May 27, 2010
    Inventor: Benoit ROUILLARD
  • Patent number: 7704012
    Abstract: A rotating cylinder cement screeding system having a drive assembly and handle at one end for powering and controlling the screeding system. The rotating cylinder is made of tubular screed rollers of varying lengths allowing a user to customize the length of the system to match a specific cement pour. Further, each tubular screed roller is supplied with a male and female end for interlocking with each other and for receiving a variety of add on attachments. The rotating cylinder may also be equipped with a constant velocity type U-joint to allow the rotating cylinder to flex and thus, allow for pours with crowns or valleys, as need by the cement installer.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: April 27, 2010
    Assignee: Lura Enterprises, Inc.
    Inventor: Dennis K. Lura
  • Publication number: 20100098489
    Abstract: The present disclosure relates to a system comprising preformed screed elements, which can be made of any suitable material, but is particularly adapted to being formed from a cementitious material. Alternative materials from which the screed elements can be formed include plastic, ceramic, clay and composite materials, such as fiber-reinforced materials. Advantageously, the screed elements of the system can be formed from a recycled material including but not limited to recycled glass, polypropylene, recycled aggregate in a cementitious matrix, asphalt-based materials or any other suitable durable material.
    Type: Application
    Filed: October 21, 2009
    Publication date: April 22, 2010
    Inventor: Robert W. Pollack
  • Patent number: 7690863
    Abstract: The invention relates to a device for holding a levelling strip (14) on a carriage for applying cold laid coatings, wherein said strip extends in a direction that is generally perpendicular to the direction of movement of the carriage, characterised in that said carriage comprises on the rear side opposite to the direction of its movement a support frame (12) which has an adjustable length so that it can adapt to the width of the application zone of the coating and which supports a levelling strip (14), made from a flexible and slightly elastic material, of which one first free end (16) is attached to a first free external edge of the support frame (18) and in that the second free external edge (20), that is opposite the first, of the support frame comprises a vertical axis breast roller (22) on which the levelling strip (14) is tensioned by means of a winding device (24) that applies to said strip a suitable tension while permitting the continuous adjustment of the working length of said strip.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: April 6, 2010
    Assignee: Eurovia
    Inventors: Francis Fourches, Michel Pierre
  • Publication number: 20100080655
    Abstract: A road paver F has a paving screed E the working width of which can be adjusted continuously. In order to further enlarge the working width in steps at least one paving screed extension can be mounted. A distributing auger is supported in a distributing auger support. Distributing auger extensions can be mounted to the distributing auger. Scraper blades are arranged in casting travelling direction behind distributing auger. At least a scraper blade section functionally associated to a mounted paving screed extension is carried by a channel sheet steel plate being part of the mounted distributing auger extension. The scraper blade section can be adjusted in height direction together with the distributing auger support via a drive which can be remotely controlled during a casting process.
    Type: Application
    Filed: September 9, 2009
    Publication date: April 1, 2010
    Applicant: Joseph Voegele AG
    Inventor: Roman Munz
  • Patent number: 7677834
    Abstract: A soft landing control system for a screeding device is operable to automatically lower a vibrating member relative to a grade setting device after the grade setting device is lowered to the desired grade. The control may be operable to delay lowering the vibrating member relative to the grade setting device at least until the control receives an input indicative of at least a portion of the screed head assembly being moved to a position generally over a newly placed concrete area. Optionally, the control may delay lowering of the vibrating member relative to the grade setting device until a period of time has elapsed after an activating event. Optionally, the control may automatically stop vibration of the vibrating member when the screed head assembly is not moving in the screeding direction and may automatically vibrate the vibrating member when the screed head assembly moves in the screeding direction.
    Type: Grant
    Filed: July 1, 2008
    Date of Patent: March 16, 2010
    Assignee: Somero Enterprises, Inc.
    Inventors: Philip J. Quenzi, Carl B. Kieranen, Frank E. Anderson, Jeffrey W. Torvinen, Mark A. Pietela
  • Patent number: 7654769
    Abstract: According to a method for constructing a cover layer S on a planum M by using a paving screed B the elevation of the paving screed B above the planum M is measured using a reference RZ on the planum M by at least one elevation sensors H and/or the lateral inclination of the paving screed B with respect to the planum M is measured by at least one lateral inclination sensor N. Upon occurrence of a deviation from the target elevation pulling points P of pulling bars 6 of the paving screed B are displaced vertically at a road paver F by levelling cylinders Z. Each levelling cylinder Z is exclusively adjusted over an absolute stroke starting from a selected zero point NP. The absolute stroke is calculated from a measuring result of a reference measurement and by consideration of a construction ratio factor.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: February 2, 2010
    Assignee: Joseph Voegele AG
    Inventor: Jens Herrmann
  • Patent number: 7654772
    Abstract: A mobile asphalt production machine mixes bituminous concrete at the job site through a mixing auger mechanism mounted in an insulated housing. Propane burners provide heat within the mixing auger mechanism and within the insulated housing to produce a hot-mix bituminous concrete in large or small batches. The components of the asphalt mixture are stored in separate bins that can be re-filled at the job site to provide a continuous supply of asphalt. Hot liquid bitumen is added to heated aggregate within the mixing auger mechanism. Recycled asphalt can be added through a port in the mixing auger for incorporation into the mixture. Controls permit the rate of flow of each individual component to be selectively varied in order to change the recipe for the mixture and to provide calibration of the component, while a master control will maintain the pre-established flow rates through a variable speed of operation.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: February 2, 2010
    Inventor: Harold M. Zimmerman
  • Patent number: 7651296
    Abstract: A concrete screed includes a screed bar, a bar mover adapted to move the screed bar over concrete, and a mount coupling the bar mover to the screed bar.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: January 26, 2010
    Inventor: Joseph W. Lindley
  • Patent number: 7651295
    Abstract: An extension screed is for a paving vehicle screed assembly that includes a main screed. The extension screed includes two base members movably connectable with the main screed and two vertical actuators each extending between the main screed and a separate base member. Each vertical actuator linearly displaces the connected base member with respect to the main screed in opposing vertical directions. A carriage preferably includes an inner frame movably connected with the base members and an outer frame slidably disposed about the inner frame and configured to support a screed plate. The vertical actuators vertically displace the carriage and alternatively pivot the carriage within a vertical plane. Further, a first horizontal actuator displaces the inner frame with respect to the two base members in opposing horizontal directions and a second horizontal actuator displaces the outer fame with respect to the inner frame in opposing horizontal directions.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: January 26, 2010
    Assignee: Volvo Construction Equipment AB
    Inventors: Michael S. Eppes, Eric Potter, Christopher W. Rahn
  • Patent number: 7610648
    Abstract: Concrete-finishing tools and attachments, such as edgers, groovers, and groover attachments, are disclosed. The tools and attachments may include a unitary stainless steel body or element. The tools and attachments may be formed by a method or methods including casting and forging.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: November 3, 2009
    Assignee: Bon Tool Company
    Inventor: Carl A. Bongiovanni
  • Patent number: 7604433
    Abstract: A floating screed device has a first section for cutting through plastic concrete and a second section for floating on the plastic concrete. The first and second sections are coupled together by a mechanism that moves the first section relative to the second section in a direction perpendicular to the planar bottom of the second section as the floating screed device is moved through a volume of unfinished plastic concrete.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: October 20, 2009
    Assignee: Laser Strike, LLC
    Inventors: S. Allen Face, III, Albert D. Frankeny, II
  • Publication number: 20090257825
    Abstract: A control system for heating a screed assembly of a paving machine is provided. The control system includes a plurality of resistive heating elements positioned adjacent to a screed plate of the screed assembly. An electrical power supply is selectively connected with the resistive heating elements via switches operated by a controller. The controller is responsive to inputs from at least manual switches and temperature sensors. The controller is configured to automatically adjust the temperature of the screed plate by selectively energizing fewer than all of the resistive heating elements at a time.
    Type: Application
    Filed: June 15, 2009
    Publication date: October 15, 2009
    Applicant: Caterpillar Paving Products Inc.
    Inventor: James J. Nelson
  • Publication number: 20090252554
    Abstract: A powered roller screed (366) is disclosed, that uses a dual-drive power unit (370) and a screed roller (368). A power source (372) of the dual-drive power unit (370) includes a first drive output (374) and a second drive output (376), which rotate in the same direction and at the same rate. Each of the first drive output (374) and the second drive output (376) may be used to rotate the screed roller (368). For instance, the first drive output (374) could be attached to a first end of the screed roller (368), or the second drive output (376) could be attached to the second end of the screed roller (368), all to rotate the screed roller (368) in the same direction as the screed roller (368) is being pulled over wet concrete (364).
    Type: Application
    Filed: January 28, 2009
    Publication date: October 8, 2009
    Inventor: DENNIS K. LURA
  • Patent number: 7588388
    Abstract: In one aspect of the present invention, a paved surface reconditioning system has a vehicle adapted to traverse a paved surface. The vehicle having a press plate with a working surface having plurality of nozzles disposed therein. At least one of the nozzles has an inner diameter less than 1 mm. A fluid passage may connect the nozzle to a reservoir. The reservoir and fluid passage have a volume and a pressurizing mechanism in communication with the volume and being adapted to pressurize at least a portion of the volume.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: September 15, 2009
    Inventors: David R. Hall, David Wahiquist, Timothy C. Duke, Codrin Daranga
  • Publication number: 20090226257
    Abstract: A screed rail system for placing uncured concrete includes a pair of rails positioned to lie spaced-apart and parallel to one another and a screed plate supported between the rails to move along the rails to form a final grade level of uncured concrete in a work area.
    Type: Application
    Filed: March 9, 2009
    Publication date: September 10, 2009
    Inventor: Joseph W. Lindley
  • Publication number: 20090202299
    Abstract: A floating screed device has a first section for cutting through plastic concrete and a second section for floating on the plastic concrete. The first and second sections are coupled together by a mechanism that moves the first section relative to the second section in a direction perpendicular to the planar bottom of the second section as the floating screed device is moved through a volume of unfinished plastic concrete.
    Type: Application
    Filed: February 12, 2008
    Publication date: August 13, 2009
    Inventors: S. Allen Face, III, Albert D. Frankeny, II
  • Patent number: 7572082
    Abstract: A vibrating device for surfacing concrete comprising a surfacing blade, a vibration-causing assembly in communication with the surfacing blade and an actuator in communication with the vibration-causing assembly for imparting a vibratory motion to the blade. The vibration-causing assembly comprises a shaft assembly and a bearing assembly in communication with said shaft assembly. The bearing-assembly provides for substantially avoiding undesired movement of said blade during the vibratory motion.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: August 11, 2009
    Assignee: Magic Screed 9033-4624 Quebec Inc.
    Inventor: Roger Rouillard
  • Publication number: 20090178288
    Abstract: A bed-depth gauge consists of a guide member, a screed member, and means for assembling them for relative movement, for effective depth adjustment, in a vertical direction that is generally perpendicular to a bottom edge of the screed member. The guide member has a pair of arms that extend laterally, at different heights, which are used to engage and follow a fixed reference surface to thereby enable the bottom edge of the screed member to level and control the depth of both a base layer and also an overlying upper layer, comprising a bed prepared for installation of paving blocks and the like.
    Type: Application
    Filed: August 29, 2008
    Publication date: July 16, 2009
    Inventor: Philip J. Bahler
  • Patent number: 7559719
    Abstract: A screed attachment is provided for an industrial vehicle, such as a skid steer vehicle. The attachment includes a pair of extendable beam assemblies and a mounting structure configured to support the beam assemblies on the forward attachment point of the vehicle. The beam assemblies are set apart sufficient for the skid steer to drive between the assemblies to engage the mounting structure. Legs are provided to support the beam assemblies when the screed attachment is in use. The screed attachment includes a screed plate supported by the extendable beam of the beam assemblies so that the screed plate can be extended over a concrete pour and retracted along the pour to perform the screeding operation. The screed plate is vertically adjustable and may be under the control of a laser leveling system.
    Type: Grant
    Filed: May 9, 2007
    Date of Patent: July 14, 2009
    Inventor: Victor B. Nasby
  • Publication number: 20090175681
    Abstract: A method and apparatus for screeding post tensioned concrete slabs includes providing a screeding device having a wheeled support having a frame portion and spaced apart wheels rotatably mounted to the frame portion. The screeding device has a screed head mounted to the wheeled support. The screed head includes a vibrating member and a grade setting device adjustably mounted to the vibrating member. The vibrating member is at least partially supportable on the uncured concrete surface, and the grade setting device is adjustable relative to the vibrating member to strike off excess uncured concrete in front of the vibrating member to establish the desired grade or level of the uncured concrete. The screed head may be pivotable relative to the wheeled support about a longitudinal pivot axis extending along the screeding device and in the direction of travel of the screeding device.
    Type: Application
    Filed: December 29, 2008
    Publication date: July 9, 2009
    Applicant: SOMERO ENTERPRISES, INC.
    Inventors: Mark A. Pietila, Philip D. Halonen, Jason M. Wiitanen, Jeffrey W. Torvinen
  • Patent number: 7549822
    Abstract: A vibrating device for surfacing concrete comprising a surfacing blade, a vibration-causing assembly in communication with the surfacing blade and an actuator in communication with the vibration-causing assembly so as to cause the vibration-causing assembly to impart a vibratory motion to the blade. A seal member is mounted about the junction between the actuator and the vibration-causing assembly. The said seal member seals the junction from concrete during surfacing.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: June 23, 2009
    Assignee: Magic Screed 9033-4624 Quebec Inc.
    Inventor: Roger Rouillard
  • Patent number: 7544011
    Abstract: An apparatus for regulating a flow of pavement rejuvenation materials for deposit on a roadway is disclosed in one aspect of the invention as including a first channel is supported by a pavement recycling machine and is in communication with a supply of pavement rejuvenation materials; a second channel slideably coupled to the first channel, the pavement rejuvenation materials adapted to flow through the first and second channels; and a hardened tip coupled to the second channel. The apparatus may also have a seat coupled to one of the channels; and a blocking element coupled to the other of the channels. Upon sliding the first channel with respect to the second channel, the blocking element contacts the seat, thereby impeding the flow of pavement rejuvenation materials flowing through the channels.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: June 9, 2009
    Inventors: David R. Hall, Timothy C. Duke, David C. Wahlquist
  • Patent number: 7544012
    Abstract: A rotating cylinder cement screeding system having a drive assembly and handle at one end for powering and controlling the screeding system. The rotating cylinder is made of tubular screed rollers of varying lengths allowing a user to customize the length of the system to match a specific cement pour. Further, each tubular screed roller is supplied with a male and female end for interlocking with each other and for receiving a variety of add on attachments. The rotating cylinder may also be equipped with a constant velocity type U-joint to allow the rotating cylinder to flex and thus, allow for pours with crowns or valleys, as need by the cement installer.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: June 9, 2009
    Assignee: Lura Enterprises, Inc.
    Inventor: Dennis K. Lura
  • Patent number: 7540686
    Abstract: The invention relates to a vibratory paving screed for a paver, comprising a baseplate and a vibration drive therefor and also comprising a front wall which is mounted upstream of the baseplate in the paving direction, is fixed with respect to the baseplate and engages with the baseplate, in which arrangement the baseplate comprises a section of uniform thickness and, in the region of its front edge, a separate, solid strip which is connected to the section and has a metering slope and a flat run-in bevel situated behind.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: June 2, 2009
    Assignee: ABG Allgemeine Baumaschinen-Gesellschaft mbH
    Inventor: Dirk Heims
  • Patent number: 7540688
    Abstract: A screed assembly includes a screed plate, a console assembly, and a first and second handles. The various components of the screed assembly are attached to one another with quick connect mechanisms so that they can be disassembled for cleaning and transport and reassembled at a new site. A tilt mechanism operated by a horizontal beam of light can also be utilized and is also attached by a quick connect mechanism.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: June 2, 2009
    Inventors: Robert E. Suckow, Richard A. Suckow