EP1149203A1 - Device for inserting dowels into freshly laid road surfaces - Google Patents
Device for inserting dowels into freshly laid road surfacesInfo
- Publication number
- EP1149203A1 EP1149203A1 EP99962162A EP99962162A EP1149203A1 EP 1149203 A1 EP1149203 A1 EP 1149203A1 EP 99962162 A EP99962162 A EP 99962162A EP 99962162 A EP99962162 A EP 99962162A EP 1149203 A1 EP1149203 A1 EP 1149203A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dowels
- conveyor
- slots
- storage container
- strand conveyor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/04—Devices for laying inserting or positioning reinforcing elements or dowel bars with or without joint bodies; Removable supports for reinforcing or load transfer elements; Devices, e.g. removable forms, for making essentially horizontal ducts in paving, e.g. for prestressed reinforcements
Definitions
- the invention relates to a device for inserting dowels in the area of transverse expansion joints of freshly laid pavements according to the preamble of claim 1.
- Such devices are required in the manufacture of concrete road surfaces and are often integrated into a slipform paver.
- slipform pavers concrete surfaces, especially traffic roads, are produced in a continuous movement.
- Fresh concrete is poured in front of the slipform paver from a truck or with the help of special loading devices.
- augers or a distributor sword the concrete is distributed evenly across the direction of travel.
- the concrete is then compacted using vibrating devices and shaped into the desired monolithic profile using a screed.
- a dowel setting device several dowels arranged next to each other and aligned parallel to the direction of travel are then inserted into the as yet unconsolidated concrete.
- dowels For the automated insertion of the dowels, it is necessary to transport a sufficient number of dowels in a storage container.
- the dowels must be transported individually to brackets that are located directly above the pavement made of fresh concrete, whereby the dowels from these brackets can be pressed into the concrete to a predetermined depth using a dowel setting device.
- a known device of the generic type is described in EP 0 196 698 AI.
- the device for inserting dowels described therein is integrated in a slipform paver.
- the dowels are located in a loading wagon without a floor that can be moved transversely to the direction of travel, whereby the dowels can fall out of the loading wagon, which is open at the bottom, into recesses in a base plate serving as a screed.
- the loader wagon is moved across the entire working width of the machine until dowels are placed in all recesses.
- the loading wagon is then returned to its original position. If all recesses are provided with dowels, the recesses are moved so that the dowels can fall onto the fresh concrete via slots in the base plate and can then be shaken into the concrete with two forks each.
- the known device has the disadvantage that the loader wagon, in particular for reasons of weight, has only a small capacity for dowels, so that a person has to be constantly provided for refilling the loader wagon.
- Another disadvantage is that the loading wagon must be extended beyond the working width of the machine, so that a next to the road additional free space must be kept free.
- EP 0 518 535 A1 describes a device for inserting dowels, in which the dowels are first placed on a storage device, from which they are then fed to a slot with holding elements. A dowel setting device then pushes the dowels out of the holder in the slots and into the fresh concrete.
- the invention has for its object to develop a device of the type mentioned in such a way that the automated storage of a large number of dowels is possible without interrupting work with a simple construction.
- the invention advantageously provides that a strand conveyor in a section of a bottom or side region of the storage container accepts dowels and feeds the dowels to the slots in the screed.
- the invention makes it possible to use a large-volume storage container that can be loaded quickly in a simple manner.
- the large storage container allows operation to be carried out without interrupting work. Simply loading the container shortens set-up times and personnel requirements.
- the device according to the invention works fully automatically, with between the Storage container and the screed only a single means of transport consisting of the strand conveyor is required. As a result, the construction can be kept very simple, which also results in less susceptibility to faults.
- the strand conveyor preferably consists of at least two conveyor chains which are guided parallel and at a distance from one another. In this way, the dowels are guided in at least two places.
- the strand conveyor consists of endlessly revolving elements.
- a chain conveyor with at least one endless chain runs in synchronism and parallel to the strand conveyor in the same direction and supports the takeover of the isolated dowels by the strand conveyor.
- the chain of the chain conveyor preferably runs between the conveyor chains of the strand conveyor.
- a storage container for dowels can be arranged on both sides of the machine frame, the running direction of the strand conveyor being reversible. Since the chains can run in both directions, a reversing operation is also possible, in which dowels are optionally removed from one or the other storage container. This is particularly advantageous in the case of multi-lane road surfaces, since in such cases the machine can only be loaded from one side.
- the floor area and / or the side area of the at least one storage container run obliquely to the road surface. In this way, the dowels can move to the lowest point of the storage container due to the force of gravity only with continuous removal from the storage container.
- the chain links of the conveyor chains of the strand conveyor and the chain conveyor consist of undercut link elements that form pockets between them to hold a dowel.
- the pockets are dimensioned so that they can hold dowels of different diameters. Because undercut link elements are provided, the conveyor chains can hold the dowels securely even in vertical positions without additional guides being required.
- a counting device can be provided on the strand conveyor, which counts the number of dowels received by the strand conveyor and transmits a count signal to a controller for the strand conveyor. As soon as the controller determines that a sufficient number of dowels have been received for the slots in the screed, the controller can prevent further dowel pick-up.
- a notching device is provided on the strand conveyor, which presses the dowels back out of the conveyor chains into the storage container depending on a signal from the control system and disengages the dowels from the strand conveyor and the chain conveyor. In this way it is achieved that the strand conveyor always receives the required number of dowels, so that the strand conveyor can rotate continuously.
- the notching device preferably consists of two notching plates which can be displaced in parallel and which pushes the dowels out of the takeover area at the bottom or side area.
- the notching device can consist of notching plates pivotably mounted on the storage container. This has the advantage that the actuating mechanism for the release plates can be made simpler.
- the strand conveyor can have a device that removes excess dowels or replaces missing dowels. This device ensures that the strand conveyor can run continuously.
- the bottom wall of the at least one storage container can be mounted on elastic buffer elements and configured with a vibration device which slides the dowels inside the storage container and arranges them in the Separation device should facilitate.
- the holding device for the dowels is preferably arranged in the slots, the dowels being released by the holding device when pressure is exerted by the dowel setting device.
- the width of the slots in the screed can be adapted to different dowel diameters, the vertical position of the holder devices also being adjustable when the width of the slots changes. In this way it is ensured that the dowels do not protrude from the slots upwards and can collide with the strand conveyor.
- the holding devices in the slots can consist of pivotable spring elements.
- the spring elements release the dowels at a force exerted by the dowel setting device that clearly exceeds the weight of the dowels, so that the dowels can fall onto the road surface and can be immediately pressed into the road surface by the dowel setting device.
- the holding devices can preferably be adjusted automatically in the vertical position depending on the width of the slot by means of a control cam provided on the slot and a control surface provided on the holding device. This has the advantage that when the width of the slot is adjusted, the height of the holding device is also adjusted.
- the working width of the strand conveyor and the length of the slots in the screed can be adjusted to adapt to dowels of different lengths. In this way, the machine is able to process not only dowels of different diameters, but also of different lengths.
- adjustable guide elements in the direction of travel for horizontal and vertical guidance of the strand conveyor. These guide elements are adjustably arranged on the screed in order to adapt to the length of the dowels.
- the screed is designed so that the mutual distance between the slots across the direction of travel is also adjustable.
- the conveyor chains of the strand conveyor preferably consist of double chains, so that both ends of the dowels are guided by two conveyor chains each.
- the double chains guide the dowels laterally with the inside of the outer part of the double chains, the outer part of the double chains running on the guides and the inner part of the double chains transporting the dowels.
- the direction of travel of the strand conveyor along the bottom or side region of the storage container runs linearly from bottom to top.
- FIG. 2 is an enlarged view of FIG. 1 in the area of the storage container
- FIG. 3 is an enlarged view of FIG. 1 in the area of the slots
- Fig. 6 is a schematic representation of the notching device for dowels in the inactive state
- Fig. 7 is a schematic representation of the notching device for dowels in the activated state.
- FIG. 10 is a top view of the embodiment of FIG. 8.
- 1 shows a device for introducing dowels 2, which can be integrated in a slipform paver or can also be constructed as an independent machine with its own trolleys 6.
- the device extends over the entire width of a machine frame 8 which is supported by trolleys 6.
- a screed 20 lies on the freshly laid road surface 4 and has slots 24 which extend in the direction of travel and run parallel to one another and which can each hold a dowel 2 with the aid of a holding device 28.
- Two forks 34 of a dowel setting device 32 lying one behind the other in the direction of travel press the dowels 2 out of the slots 24 into the road surface 4 to a desired depth.
- a vibration device 36 transmits vibrations to the forks 34 in order to facilitate the pushing in of the dowels 2 into the road surface 4.
- FIG. 1 shows only two forks 34 of the dowel setting device 32 arranged next to one another for the purpose of simplifying the drawing.
- a storage container 10, 12 is arranged on the machine frame 8 in the side area, both of which can be filled with a large number of dowels from the side of the machine. It is optionally possible to remove dowels 2 from one or the other storage container 10, 12. To do this, only the direction of travel of a strand conveyor 40 has to be reversed.
- the storage container has a bottom wall 48 which runs obliquely in the direction of the strand conveyor 40, and a side region 52 which extends at right angles to the bottom wall 48 and which runs parallel to a section of the strand conveyor 40 and which forms a transfer area for dowels 2. It goes without saying that the strand conveyor device 40 can also be guided along a floor area for the purpose of taking over dowels.
- the strand conveyor device 40 runs endlessly along the arrows, dowels 2 being taken over in the side region 52 of the storage container 10 and being transported to the screed 20.
- the strand conveyor 40 guides the dowels transversely over the slots 24 running longitudinally in the direction of travel in the screed 20, the dowels 2 initially falling onto the holding devices 28 in the slots 24 and being held there until all slots 24 are filled with one dowel 2 each.
- the strand conveyor device 40 consists of at least two double chains 56, 58, 60, 62 which are guided parallel and at a distance from one another.
- the distance between the conveyor chains is, as can best be seen from FIG. 5, matched to the length of the dowels 2.
- the distance between the sprockets 65a, 65b and all other sprockets of the strand conveyor 40 can be adjusted along the associated axes or the shaft 41 in order to adapt the strand conveyor 40 to different lengths of dowels 2 in a simple manner.
- the free ends of the dowels 2 are received in pockets 70 by the inner double chains 58, 60 serving as conveyor chains, while the outer double chains 56, 62 ensure the guidance of the dowels 2 in the longitudinal direction.
- Guide rails 35 for the double chains 56, 58, 60, 62 are provided at the axial ends of the dowels 2.
- the guide rails which are essentially U-shaped in cross section, have inner side plates 29, 30 projecting orthogonally upward from a parallel plate 37 and an outer side plate 33, 38.
- the side plates 29, 30 support the dowels 2 on a sliding surface 108, while the outer side plates 33, 38 support the support outer double chains 56.62.
- the inner side plates 29, 30 are spaced apart from one another in the transport direction of the double chains 56, 58, 60, 62 to leave a gap 39 through which the dowel 2 can fall into the slot 24.
- the gap 39 is delimited by plate parts of the side plates 29, 30 which project downwards beyond the plate 37.
- Guide rails 35 adjacent in the transport direction of the double chains can overlap one another, as can be seen from FIG. 10.
- the side plates 29, 30 run in mutually offset planes.
- the outer side plate 33 which can be integral with or attached to the outer side plate 38, runs in two mutually offset vertical planes in order to enable nesting of adjacent guide rails 35.
- an additional chain conveyor device 18 is provided in the area of the storage containers 10, 12 with an endless double chain 19 which is synchronous with the double chains 56, 58, 60, 62 in the same direction circulates.
- the double chain 19 runs around the sprockets 21, 22, 23 which run centrally between the sprockets 63a, 63b, 64a, 64b, so that the double chain 19 runs parallel in the middle between the double chains 58, 60 and 60.62.
- the double chains 56, 58, 60, 62 of the strand conveyor 40 can be tensioned with the aid of three deflection sprockets 67, 68, 69, the axis of the deflection sprockets 68 being able to be locked vertically in different positions in order to be able to set a different width of the machine, without having to change the length of the double chains.
- This is the case, for example, when the screed 20 is extended or shortened by one or more screed elements 27. 1 shows two alternative positions of the deflection sprockets 68.
- Every second chain link 66 has a guide plate 72 on both sides of the chain, which extends outward from the chain link 66 in a substantially trapezoidal shape extends.
- the guide plates 72 thus have an undercut tooth shape and form a pocket 70 between each second chain link 66 for receiving the dowels 2, in which the dowels 2 are held securely even when the conveyor chains run vertically.
- the double chains are arranged so that the guide plates 72 of the outer conveyor chains 56, 62 cover the pockets 70 of the inner conveyor chains 58, 60, so that the dowels 2 are held in their longitudinal direction by the guide plates 72 of the outer conveyor chains 56, 62.
- the double chains 56, 58 and 60, 62 are preferably coupled to one another by a common bolt.
- Fig. 3 explains how the strand conveyor 40 transfers the dowels 2 into the slots 24 of the screed. 3, the conveyor chains of the strand conveyor 40 run to the right. As soon as a vertically downwardly open pocket is located above a free slot 24, the dowel can fall into the slot 24 and is held there in the slot 24 by a holding device 28 consisting of a spring element 94 which can be pivoted about a receiving pin 104 so that the upper edge of the dowel 2 does not protrude beyond the sliding surface 108 on which the conveyor chains slide.
- a holding device 28 consisting of a spring element 94 which can be pivoted about a receiving pin 104 so that the upper edge of the dowel 2 does not protrude beyond the sliding surface 108 on which the conveyor chains slide.
- the slot width of the slots 24 can be adjusted to suit different dowel diameters by adjusting the position of side plates 29, 30 on the screed element 27 of the screed 20.
- the holding device 28 is also adjusted by the spring element 94 widening the slot 24 via one on the side plate
- control cam 95 a control surface 102 is pivoted.
- the spring element 94 is pivotally mounted on a receiving pin 104 on the side plate 30. The free end of the spring element 94 is on the side plate
- the figures 8 to 10 show an alternative embodiment of the holding device 28 for the dowels 2.
- the holding device 28 consists of at least two cam disks 98 which are arranged opposite and orthogonal relative to the dowel 2 and which pivotally receive the dowel 2 between them in a spring-loaded starting position and in a spring-loaded starting position hold. As can best be seen from FIG.
- the cam disks 98 can be provided on either side of the side plates 29, 30.
- the receiving pins 104 are mounted both in the side plates 29, 30 of the guide rail 35 which is U-shaped in cross section and in the outer side plate 38 parallel to the inner side plates 29, 30.
- a spring element 96 is wound around the receiving pin 104 and biases the cam disks 98 in the direction of the starting position, so that the dowel 2 in the starting position shown in FIG. 8 is held at its two axial ends by the opposite cam disks 98.
- the cam disks 98 pivot against the force of the spring element 96 and release the dowel into the slot 24.
- the forks 34 of the dowel setting device 32 grip the dowels 2 near their ends and press them against the force of the spring element 94 or 96 out of the slot 24 into the pavement cover 4.
- the distance between the screed parts 31 of the screed elements 27 is chosen to be large that the forks 34 can be passed between the screed parts 31.
- FIG. 9 shows a position in which the dowel 2 is pressed downwards into the slot 24 by the fork 34, as a result of which the cam disks 98 are pivoted outwards and downwards relative to the dowel 2.
- the forks 34 are not shown in FIG. 9 for simplification.
- the cam disks have a control surface 110 which is supported on the dowel 2 when the dowel passes and prevents the cam disks 98 from suddenly returning to their starting position after the dowel 2 has been released. The restoring movement of the cam disks 98 is braked thereby, so that the impact load for the spring elements 96 is reduced.
- Fig. 2 shows the storage container 10 in an enlarged view.
- the strand conveyor 40 with the conveyor chains 56, 58, 60, 62 and the chain conveyor 18 with the conveyor chain 19 are guided upward in a linear section 44 from the bottom upward in the side region 52 of the storage container, with dowels 2 in the pockets 70 between the guide plates 72 of the inner conveyor chains 58, 60 and the conveyor chain 19 can fall into it.
- the guide plates 72 keep the other dowels 2 of the storage container 10, 12 away.
- the outer conveyor chains 56, 62 guide the dowels 2 laterally, whereby guide plates can be arranged within the storage container 10, 12, which guide the dowels 2 in their lateral alignment so that they can be received between the guide plates 72 of the outer conveyor chains.
- a counting device 74 can be arranged, which counts the number of dowels 2 transported by the strand conveyor device 40 and transmits a corresponding counting signal to a controller.
- a notching device 76 is actuated, which consists of two notching plates 78a, 78b guided in parallelograms, two parallel core 79a, 79b and one piston-cylinder unit 80a, 80b.
- the release plates or rods 78a, 78b as best seen in FIG. 4, each extend between the conveyor chain 19 of the chain conveyor 18 and the conveyor chains 56, 58, 59, 60 of the strand conveyor 40.
- FIG. 6 shows the notching device 76 in the inactive state, in which the strand conveyor device 40 and the chain conveying device 18 removes the dowels 2 in the pockets 70 between the guide plates 72 from the storage container 10, 12, while FIG. 7 shows how the notching plates 78a , 78b brings the dowels 2 out of engagement from the strand conveyor 40 and the chain conveyor 18 by pushing the dowels 2 back into the storage container 10, 12.
- the release plates or rods 78a, 78b can also bring the dowels 2 out of engagement by a pivoting movement.
- the bottom wall 48 of the storage container 10, 12 can be supported on the storage container 10, 12 with elastic buffer elements 86.
- a vibrating device 90 can be arranged on the bottom wall 48 in order to support moving the dowels 2 within the storage container 10, 12.
- the conveyor chains are not shown in FIG. 4 for the sake of clarity of the drawings.
- the chain wheels 64a, 21 and 64b are arranged in a rotationally fixed manner on a shaft 41 and are driven by a hydraulic motor 42. Both the conveyor chains of the strand conveyor 40 and the conveyor chain 19 of the chain conveyor 18 are thus driven via the shaft 41.
- the chain wheels 64a, 64b are axially displaceable on the shaft 41 and can be locked in different positions. The same applies to all other sprockets and deflection sprockets of the strand conveyor 40, whereby an adaptation to different dowel lengths is possible.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Treatment Of Fiber Materials (AREA)
- Chain Conveyers (AREA)
- Road Paving Structures (AREA)
- Finishing Walls (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904797A DE19904797C1 (en) | 1999-02-05 | 1999-02-05 | Device for inserting dowels in freshly laid pavements |
DE19904797 | 1999-02-05 | ||
PCT/EP1999/009127 WO2000046449A1 (en) | 1999-02-05 | 1999-12-17 | Device for inserting dowels into freshly laid road surfaces |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1149203A1 true EP1149203A1 (en) | 2001-10-31 |
EP1149203B1 EP1149203B1 (en) | 2004-04-14 |
Family
ID=7896600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99962162A Expired - Lifetime EP1149203B1 (en) | 1999-02-05 | 1999-12-17 | Device for inserting dowels into freshly laid road surfaces |
Country Status (7)
Country | Link |
---|---|
US (1) | US6655869B1 (en) |
EP (1) | EP1149203B1 (en) |
AT (1) | ATE264432T1 (en) |
AU (1) | AU1860000A (en) |
DE (2) | DE19904797C1 (en) |
ES (1) | ES2219096T3 (en) |
WO (1) | WO2000046449A1 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6926463B2 (en) * | 2003-08-13 | 2005-08-09 | Lee A. Shaw | Disk plate concrete dowel system |
US7338230B2 (en) * | 2003-08-13 | 2008-03-04 | Shaw & Sons, Inc. | Plate concrete dowel system |
US7314333B2 (en) * | 2003-08-13 | 2008-01-01 | Shaw & Sons, Inc. | Plate concrete dowel system |
US20060275078A1 (en) * | 2003-08-13 | 2006-12-07 | Shaw & Sons, Inc. | Plate concrete dowel system |
BE1016562A3 (en) * | 2005-04-08 | 2007-01-09 | Drion Constructie Bv Met Beper | IMPROVED DOOR DEVICE FOR A CONCRETE MACHINE AND A CONCRETE MACHINE EQUIPPED WITH SUCH DEVICE MACHINE. |
US20070134063A1 (en) * | 2005-12-14 | 2007-06-14 | Shaw And Sons, Inc. | Dowel device with closed end speed cover |
US8073566B2 (en) | 2007-04-05 | 2011-12-06 | Power Curbers, Inc. | Automated stringline installation system |
US8382396B2 (en) * | 2009-09-09 | 2013-02-26 | Guntert & Zimmerman Const. Div., Inc. | Paver having dowel bar inserter with automated dowel bar feeder |
CN102392410B (en) * | 2011-10-17 | 2013-07-03 | 哈尔滨工业大学 | Vibrating-type seam pressing and jointing integral machine for cement concrete pavement |
US20150197898A1 (en) | 2014-01-15 | 2015-07-16 | Shaw & Sons, Inc. | Concrete dowel system |
US9340969B1 (en) | 2014-11-13 | 2016-05-17 | Shaw & Sons, Inc. | Crush zone dowel tube |
US20190024367A1 (en) | 2015-10-05 | 2019-01-24 | Shaw & Sons, Inc. | Concrete dowel placement system and method of making the same |
US20170096810A1 (en) | 2015-10-05 | 2017-04-06 | Shaw & Sons, Inc. | Concrete dowel placement system and method of making the same |
CN109137691A (en) * | 2018-09-11 | 2019-01-04 | 中建路桥集团有限公司 | A kind of concrete prefabricated paving unit spelling, which is mated formation, sets |
DE102019207274B4 (en) * | 2019-05-17 | 2022-03-31 | Wirtgen Gmbh | Device for inserting dowels into freshly laid road surfaces |
US11578491B2 (en) | 2020-02-07 | 2023-02-14 | Shaw Craftsmen Concrete, Llc | Topping slab installation methodology |
US11873608B2 (en) * | 2020-06-23 | 2024-01-16 | Power Curbers Companies, LLC | Slipform concrete paving machine having dowel bar inserter mechanism with continuous floor |
Family Cites Families (16)
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US3443495A (en) * | 1967-11-29 | 1969-05-13 | Carl J Heltzel | Concrete reinforcing steel handling and placing device |
EP0117323B1 (en) * | 1983-02-10 | 1987-08-26 | Guntert And Zimmermann Const. Div. Inc. | Apparatus and process for dowel insertion to concrete panel joints |
DE3660455D1 (en) * | 1985-04-02 | 1988-09-08 | Moser Andreas | Apparatus for driving and positioning dowels into concrete slabs |
CH669232A5 (en) * | 1986-03-27 | 1989-02-28 | Thoma Werksvertretungen | DEVICE FOR INSERTING REINFORCEMENT BARS INTO A CONCRETE RAILWAY CEILING. |
CH669233A5 (en) * | 1986-04-04 | 1989-02-28 | Thoma Werksvertretungen | ROAD CONSTRUCTION MACHINE. |
DE3907643A1 (en) * | 1989-03-09 | 1990-10-04 | Thoma Erhard | Dowel inserter |
US4995758A (en) * | 1989-07-31 | 1991-02-26 | Cmi Corporations | Center bar inserter |
DE4014098A1 (en) * | 1990-05-02 | 1991-11-14 | Thoma Erhard | DUEBELSETZER |
US5190397A (en) * | 1991-03-18 | 1993-03-02 | Gomaco Corporation | Dowel bar insertion method and apparatus for concrete paving machine |
US5209602A (en) * | 1991-06-10 | 1993-05-11 | Gomaco Corporation | Method and apparatus for inserting dowel bars for a concrete slip forming machine |
US5318377A (en) * | 1992-06-18 | 1994-06-07 | Cmi Corporation | Paving machine with midline dowel bar insertion |
US5405212A (en) * | 1992-06-18 | 1995-04-11 | Cmi Corporation | Paving machine with drop-then-stop dowel bar insertion |
US6099204A (en) * | 1996-08-13 | 2000-08-08 | Godbersen; Gary L. | Apparatus for inserting dowel bars in a concrete slip forming machine |
BE1011454A6 (en) * | 1997-09-16 | 1999-09-07 | Casters Francois | Concrete down machine and hereby deuvelapparaat used. |
US6176643B1 (en) * | 1999-10-01 | 2001-01-23 | Guntert & Zimmerman Const. Div. | Detachable dowel bar inserter kit for portable slip form paver |
US6390726B1 (en) * | 1999-10-01 | 2002-05-21 | Guntert & Zimmerman Const. Div. | Dowel bar inserter kit having chain feeder |
-
1999
- 1999-02-05 DE DE19904797A patent/DE19904797C1/en not_active Expired - Fee Related
- 1999-12-17 WO PCT/EP1999/009127 patent/WO2000046449A1/en active IP Right Grant
- 1999-12-17 DE DE59909206T patent/DE59909206D1/en not_active Expired - Lifetime
- 1999-12-17 AU AU18600/00A patent/AU1860000A/en not_active Abandoned
- 1999-12-17 ES ES99962162T patent/ES2219096T3/en not_active Expired - Lifetime
- 1999-12-17 EP EP99962162A patent/EP1149203B1/en not_active Expired - Lifetime
- 1999-12-17 US US09/890,817 patent/US6655869B1/en not_active Expired - Lifetime
- 1999-12-17 AT AT99962162T patent/ATE264432T1/en active
Non-Patent Citations (1)
Title |
---|
See references of WO0046449A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2219096T3 (en) | 2004-11-16 |
DE59909206D1 (en) | 2004-05-19 |
DE19904797C1 (en) | 2000-12-28 |
WO2000046449A1 (en) | 2000-08-10 |
EP1149203B1 (en) | 2004-04-14 |
AU1860000A (en) | 2000-08-25 |
US6655869B1 (en) | 2003-12-02 |
ATE264432T1 (en) | 2004-04-15 |
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