Adjusted To A Predetermined Path Patents (Class 404/84.2)
  • Publication number: 20150139730
    Abstract: In a method for laying down a pavement consisting of paving material with a screed of a road paver, in which a compaction unit, particularly a tamper, pre-compacts the paving material at cyclical work cycles with selectable stroke and selectable frequency while the pavement having a selectable pavement thickness) is in the process of being laid down at a selectable paving speed, at least the stroke is automatically adjustable in response to paving parameters, such as at least the paving speed and/or the pavement thickness, along a characteristic curve or in a characteristic map. In the screed the compaction unit comprises an adjusting mechanism which is operable during the ongoing paving work for adjusting the stroke of the compaction unit.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Inventors: Martin Buschmann, Gunter Zegowitz, Achim Eul, Ralf Weiser, Roman Munz, Nicole Angermann, Klaus Bertz, Christian Pawlik
  • Patent number: 8888402
    Abstract: The invention relates to a self-propelled civil engineering machine, and in particular to a slipform paver, road paver or road milling machine, and to a method of controlling a self-propelled civil engineering machine. The civil engineering machine according to the invention has a control unit which is configured to determine data which defines the position and/or orientation of a reference point on the civil engineering machine in relation to a reference system (X, Y, Z) independent of the position and orientation of the civil engineering machine. The reference system (X, Y, Z) independent of the machine-related reference system (x, y, z) may be selected as desired, and there is thus no need for the positions of various reference points to be plotted on the ground.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: November 18, 2014
    Assignee: Wirtgen GmbH
    Inventors: Matthias Fritz, Cyrus Barimani, Günter Hähn
  • Patent number: 8851792
    Abstract: A rotary mixer herein includes: a rotor chamber configured to receive a first surface and produce a reclaimed surface, the rotor chamber including: a front door, a rear door, and a rotor; a particle size detector configured to detect a particle size of the reclaimed surface; and an electronic control module (ECM) electronically coupled to the rotor chamber and the particle sensor, the ECM configured to: receive a particle size from the particle sensor, compare the detected particle size to a desired particle size, adjust the degree of pulverization of the reclaimed surface according to the difference between the detected particle size and the desired particle size.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: October 7, 2014
    Assignee: Caterpillar Paving Products Inc.
    Inventors: Brian J. Schlenker, Brent P. Bachmeier, Jason W. Muir, Mario J. Souraty, Maria L. Biberdorf
  • Patent number: 8827591
    Abstract: The present invention relates to a paving machine that includes an auger, a screed, and one or more sensors. The auger is adapted to distribute a paving mix on a paving surface. The screed is adapted to compact the mix on the paving surface to form the pavement. The one or more sensors are adapted to monitor the density of the pavement as it is compacted by the screed and provide output signals corresponding to the density so that the force exerted by the screed on the pavement as it is formed may be adjusted to achieve a desired pavement density.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: September 9, 2014
    Assignee: Volvo Construction Equipment AB
    Inventors: Robert W. Begley, Dale W. Starry, Jr.
  • Patent number: 8613566
    Abstract: The invention relates to a self-propelled civil engineering machine, and in particular to a slipform paver, road paver or road milling machine, and to a method of controlling a self-propelled civil engineering machine. The civil engineering machine according to the invention has a control unit which is configured to determine data which defines the position and/or orientation of a reference point on the civil engineering machine in relation to a reference system (X, Y, Z) independent of the position and orientation of the civil engineering machine. The reference system (X, Y, Z) independent of the machine-related reference system (x, y, z) may be selected as desired, and there is thus no need for the positions of various reference points to be plotted on the ground.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: December 24, 2013
    Assignee: Wirtgen GmbH
    Inventors: Matthias Fritz, Cyrus Barimani, Günter Hähn
  • Patent number: 8388263
    Abstract: The invention relates to a self-propelled civil engineering machine, and in particular to a slipform paver, road paver or road milling machine, and to a method of controlling a self-propelled civil engineering machine. The civil engineering machine according to the invention has a control unit 7 which has means for determining data which defines the position and/or orientation of a reference point R on the civil engineering machine in relation to a reference system (X, Y, Z) independent of the position and orientation of the civil engineering machine. The reference system (X, Y, Z) independent of the machine-related reference system (x, y, z) may be selected as desired, and there is thus no need for the positions of various reference points to be plotted on the ground.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: March 5, 2013
    Assignee: Wirtgen GmbH
    Inventors: Matthias Fritz, Cyrus Barimani, Guenter Haehn
  • Patent number: 8371769
    Abstract: A control and a method of control for a machine that applies a material to a subgrade at a work site and pulls a floating screed, having a screed plate, over the top surface of the material behind the machine is useful in paving with asphalt material. The floating screed is attached to the machine by a tow arm at a tow point on said tow arm. The vertical height of the tow point is controlled by an hydraulic cylinder on said machine in response to a valve control signal applied to an hydraulic valve by a valve control drive. The screed determines the thickness of the material on the subgrade and is manipulated by adjusting the height of the tow point. A first sensor is mounted on the floating screed for sensing three-dimensional position. A second sensor for senses the pitch of said screed. A processor circuit is responsive to the first and second sensors for determining the height of the trailing edge of the screed plate and the movement of the screed over the top surface of the material.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: February 12, 2013
    Assignee: Caterpillar Trimble Control Technologies LLC
    Inventors: Andrew James Worsley, Jason Grier Lindsay Hill
  • Patent number: 8308395
    Abstract: In a road construction machine (1) for the treatment of road surfaces with a milling drum (3) height-adjustable with regard to the milling depth, with a leveling device (4) with at least one controller (6a, 6c) which receives set values for the milling depth and/or the slope of the milling drum (3), and with at least one exchangeable sensor (A, B, C) or with several switchable sensors for registering the current actual value of the milling depth and/or the slope of the milling drum (3) relative to a reference surface, where the controller (6a, 6c) effects a milling depth control and/or a slope control for the milling drum (3) conditional on pre-determined set values and the currently measured actual values of the at least one sensor (A, B, C) by returning an adjustment value for achieving or maintaining the set value during the milling operation, where the leveling device (4) is provided with an indication and setting device (2) for indicating and setting operating parameters for the at least one sensor (A, B
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: November 13, 2012
    Assignee: Wirtgen GmbH
    Inventors: Jaroslaw Jurasz, Günter Hähn, Günter Tewes
  • Patent number: 8073566
    Abstract: An automated stringline installation system includes a vehicle, a 3D control system, at least partly carried by the vehicle, for determining location information, and an adjustable arm assembly, mounted on the vehicle, that identifies the location of a relative point in a stringline installation using the location information determined by the 3D control system. The adjustable arm assembly includes an operational arm having a proximal end and a distal end, a string, dispensed from the operational arm, for use in a stringline installation, and a sensor used to determine information pertaining to the location of the distal end of the operational arm assembly relative to the proximal end of the operational arm.
    Type: Grant
    Filed: April 5, 2008
    Date of Patent: December 6, 2011
    Assignee: Power Curbers, Inc.
    Inventors: Dwight Ferrand Messinger, Fred Russell Humphries, John Charles Colvard
  • Publication number: 20110206456
    Abstract: In a road construction machine (1) for the treatment of road surfaces with a milling drum (3) height-adjustable with regard to the milling depth, with a leveling device (4) with at least one controller (6a, 6c) which receives set values for the milling depth and/or the slope of the milling drum (3), and with at least one exchangeable sensor (A, B, C) or with several switchable sensors for registering the current actual value of the milling depth and/or the slope of the milling drum (3) relative to a reference surface, where the controller (6a, 6c) effects a milling depth control and/or a slope control for the milling drum (3) conditional on pre-determined set values and the currently measured actual values of the at least one sensor (A, B, C) by returning an adjustment value for achieving or maintaining the set value during the milling operation, where the leveling device (4) is provided with an indication and setting device (2) for indicating and setting operating parameters for the at least one sensor (A, B
    Type: Application
    Filed: May 2, 2011
    Publication date: August 25, 2011
    Applicant: WIRTGEN GMBH
    Inventors: Jaroslaw Jurasz, Günter Hähn, Günter Tewes
  • Patent number: 7946788
    Abstract: In a road construction machine (1) for the treatment of road surfaces with a milling drum (3) height-adjustable with regard to the milling depth, with a leveling device (4) with at least one controller (6a, 6c) which receives set values for the milling depth and/or the slope of the milling drum (3), and with at least one exchangeable sensor (A, B, C) or with several switchable sensors for registering the current actual value of the milling depth and/or the slope of the milling drum (3) relative to a reference surface, where the controller (6a, 6c) effects a milling depth control and/or a slope control for the milling drum (3) conditional on pre-determined set values and the currently measured actual values of the at least one sensor (A, B, C) by returning an adjustment value for achieving or maintaining the set value during the milling operation, where the leveling device (4) is provided with an indication and setting device (2) for indicating and setting operating parameters for the at least one sensor (A, B
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: May 24, 2011
    Assignee: Wirtgen GmbH
    Inventors: Jaroslaw Jurasz, Günter Hähn, Günter Tewes
  • 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
  • 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
  • Publication number: 20090311045
    Abstract: In a road construction machine (1) for the treatment of road surfaces with a milling drum (3) height-adjustable with regard to the milling depth, with a leveling device (4) with at least one controller (6a, 6c) which receives set values for the milling depth and/or the slope of the milling drum (3), and with at least one exchangeable sensor (A, B, C) or with several switchable sensors for registering the current actual value of the milling depth and/or the slope of the milling drum (3) relative to a reference surface, where the controller (6a, 6c) effects a milling depth control and/or a slope control for the milling drum (3) conditional on pre-determined set values and the currently measured actual values of the at least one sensor (A, B, C) by returning an adjustment value for achieving or maintaining the set value during the milling operation, where the leveling device (4) is provided with an indication and setting device (2) for indicating and setting operating parameters for the at least one sensor (A, B
    Type: Application
    Filed: April 12, 2007
    Publication date: December 17, 2009
    Inventors: Jaroslaw Jurasz, Günter Hähn, Günter Tewes
  • 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
  • Patent number: 7559718
    Abstract: A transducer arrangement and method that generates control signals indicating relative positions of the ends of a hydraulically movable tool of a machine. The generated control signals of the present invention are used by a conventional control circuit of the machine to control the ends of the hydraulically movable tool having elevation receivers as an desired mode of operation or when reception by one of the elevational receivers of a elevational reference, which provides an absolute position of the ends of the tool, is interrupted. The conventional control circuit of the machine uses the generated signal of the transducer arrangement of the present invention to maintain a relative elevation position of one side of the tool to the absolute position of the other side of the tool as desired or until both receiver can reacquire the elevational reference.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: July 14, 2009
    Assignee: Trimble Navigation Limited
    Inventors: Mark E. Zachman, Jerald W. Yost
  • Patent number: 7491014
    Abstract: The invention relates to a soil compacting system which comprises a travelling and steerable soil compacting device and a control device. The control device is provided with an area definition device which allows a user to establish an area to be compacted and the area boundaries. A position detecting device detects the actual position of the soil compacting device. A traveler changes the direction of travel of the soil compacting device by presetting a standard value for a travelling movement of the soil compacting device in such manner that the soil compacting device does not travel past the respective area boundary but continues its travel within the area. A path planning device may be provided for fixing a presetting for a travel way which makes sure that the soil compacting device, when keeping to the preset travel way, travels at least once completely across the area to be compacted.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: February 17, 2009
    Assignee: Wacker Construction Equipment AG
    Inventor: Georg Sick
  • Patent number: 6929420
    Abstract: A device and method for contouring three-dimensionally curved surfaces includes an elongated contouring assembly that is supported at opposite ends by height adjustment mechanisms. The height adjustment mechanisms raise and lower the ends of the contouring assembly independently of each other, thereby allowing the contouring assembly to create a three-dimensionally curved surface as it passes over an area to be contoured. The control of at least one end of the contouring assembly is based on a comparison of its measured position with a profile of the surface to be leveled that is stored in a computer memory. A pivot or tilting controller may control the tilting of the contouring assembly to follow the slope of the profile stored in computer memory.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: August 16, 2005
    Assignees: Delaware Capital Formation, Inc., Michigan Technological University
    Inventors: Carl B. Kieranen, Charles A. Hallstrom, Glen R. Simula, Nils P. Ruonavaara, James D. Waineo
  • Publication number: 20030175077
    Abstract: Knowledge of the profile of a road surface—most importantly its defects—is a must to construct an acceptable road surface in this day of high speed traffic. Measurement and calculation of the surface during the process of forming the road—when the road material is still plastic—provides the opportunity to repair unacceptable defects while the road surface material can still be worked. The benefits include a smoother, more durable surface at a lesser cost than methods used on hardened road surfaces. Shown herein is for a method and apparatus for calculating a surface's elevation profile using measurements taken by non-contact devices at a number of locations. Since non-contact sensors are used, elevation profiles of wet concrete can be measured and calculated. Such an apparatus can be mounted on a road paving machine to provide a real time feedback of the surface so corrections to the surface and to the paving machine's operation can be made as required.
    Type: Application
    Filed: March 15, 2002
    Publication date: September 18, 2003
    Inventors: Gary L. Godbersen, James W. Honea
  • Patent number: 6520715
    Abstract: A system and device is disclosed for obtaining a topographical profile of a road bed, and then delivering an asphalt mat that varies in thickness according to that profile. The system enables variance in the mat thickness across the width of the mat as well as in the normal longitudinal direction. The process is begun by obtaining a three-dimensional profile of the surface to be paved. A topographical scanner is moved over the road surface to obtain a profile of the entire length and width of the surface to be paved to obtain a detailed topographical profile. In a second phase of the operation, the topographical scanner is utilized in combination with an asphalt delivery mechanism. The topographical scanner tracks the exact position of the asphalt delivery mechanism, correlates that to the scanned profile, and thereby controls the operation of the asphalt delivery mechanism.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: February 18, 2003
    Inventor: John Paul Smith
  • Publication number: 20020044830
    Abstract: Apparatus for depositing material within a trench including a hopper and an elongated chute extending down from the hopper which is configured to fit within the trench. The apparatus includes a gate between the hopper and the chute for controlling flow of material out of the hopper through the chute. The apparatus preferably is mounted with a variably positionable mount on the back of a tractor and can include a laser guided control system to maintain the deposit of material at a predetermined grade.
    Type: Application
    Filed: April 2, 2001
    Publication date: April 18, 2002
    Inventor: Michael J. Munie
  • Patent number: 6287048
    Abstract: An apparatus having a horizontal compacting roller and a side edge confinement roller or shoe for compacting an asphalt concrete lane. A sensor is on the carrier vehicle for sensing the position of a defined edge of the lane, and a control is provided for steering the carrier vehicle so that the horizontal roller and the edge confinement force roller or shoe follow the defined edge of the lane to provide uniform density.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: September 11, 2001
    Inventors: Edmund D. Hollon, Blake D. Hollon
  • Patent number: 6286436
    Abstract: A mobile cement laying machine for delivering concrete via tracks to areas which are difficult to access by truck. The mobile cement laying machine includes a carriage with a front end and a back end. A hopper is mounted to an upper side of the carriage toward the front end of the carriage. The hopper has an open top and a slot providing a lower opening into the hopper for dispensing cement from the hopper. A gate substantially closes the slot of the hopper. A pair of first rail wheels are coupled to the carriage towards the front end of the carriage. A pair of second rail wheels are coupled to the carriage towards the back end of the carriage.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: September 11, 2001
    Inventor: Giancarlo A. Sansalone
  • Patent number: 6220780
    Abstract: An apparatus and method is described for translocating a lane divider from an initial position to a final position on a roadway. The apparatus comprises a conveyor connected to a vehicle. The conveyor includes a receiving segment for receiving the lane divider from the initial position on the roadway and a discharging segment for discharging the lane divider to the final position on the roadway. The receiving segment and the discharging segment are pivotally connected relative to one another. The receiving segment may be pivoted to enable the lateral movement of the receiving segment to accommodate for variation in the initial position of the lane divider on the roadway. The discharging segment may be pivoted for discharging the lane divider to a final position aligned on the roadway. A translocating segment may be interposed between the receiving segment and the discharging segment for moving the lane divider from one lane to another lane on the roadway.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: April 24, 2001
    Assignee: Qwick Kurb, Inc.
    Inventors: Robert J. Schindler, Marshall L. Douberly
  • Patent number: RE39834
    Abstract: A contouring device and method for contouring three-dimensionally curved surfaces includes an elongated contouring assembly that is supported at opposite ends by a pair of fluid cylinders. The fluid cylinders are controlled to raise and lower the ends of the contouring assembly independently of each other, thereby allowing the contouring assembly to create a three-dimensionally curved surface as it passes over an area to be contoured. The control of one of the fluid cylinders is based on a comparison of the measured position of a first end of the contouring assembly with a profile of the surface to be leveled that is stored in a computer memory. The measurement of the position of the first end of the contouring assembly is achieved by a tracking device which tracks the position of a target positioned on the first end of the contouring assembly and which determines the three dimensional position of the target.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: September 11, 2007
    Assignees: Michigan Technological University, Somero Enterprises, Inc.
    Inventors: Carl B. Kieranen, Charles A. Hallstrom, Glen R. Simula, Nils P. Ruonavaara, James D. Waineo