EP2356285A1 - Water-ballasted protection barrier - Google Patents
Water-ballasted protection barrierInfo
- Publication number
- EP2356285A1 EP2356285A1 EP08878186A EP08878186A EP2356285A1 EP 2356285 A1 EP2356285 A1 EP 2356285A1 EP 08878186 A EP08878186 A EP 08878186A EP 08878186 A EP08878186 A EP 08878186A EP 2356285 A1 EP2356285 A1 EP 2356285A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- barrier segment
- barrier
- recited
- disposed
- segment
- 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
- 230000004888 barrier function Effects 0.000 title claims abstract description 173
- 230000003116 impacting effect Effects 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 14
- 239000002991 molded plastic Substances 0.000 claims description 14
- 239000004033 plastic Substances 0.000 claims description 13
- 229920003023 plastic Polymers 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 15
- 230000009194 climbing Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 32
- 238000012360 testing method Methods 0.000 description 9
- 230000002787 reinforcement Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009863 impact test Methods 0.000 description 2
- 238000010102 injection blow moulding Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000001175 rotational moulding Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/08—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks
- E01F15/088—Details of element connection
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/08—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks
- E01F15/081—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material
- E01F15/086—Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material using plastic, rubber or synthetic materials
Definitions
- the present invention relates generally to vehicle protection barriers, and more particularly to movable water ballasted vehicle traffic protection barriers for applications such as pedestrian protection, traffic work zone separation, airport runway divisions, and industrial commercial uses.
- Water ballasted vehicle traffic protection barriers of the type described herein are known in the prior art.
- such barriers are comprised of molded, lightweight plastic, and are hollow, having a fill port for filling them with water to ballast them in place.
- the barriers are fabricated to be sectional and modular, so that, once placed in a desired location, they can be attached together lengthwise to create a barrier of any desired length.
- Test level 1 (TL-I) standards requires an 820 kg vehicle to impact the water wall barrier at 50 kilometers per hour (kph) at an impact angle of 20 degrees, and a 2000 kg vehicle to impact the water wall barrier at 50 kph at an impact angle of 25 degrees.
- Test level 2 (TL-2) standards require an impact velocity of 70 kph, with the same vehicle weights and impact angles as for TL-I tests.
- Test level 3 (TL-3) standards require an impact velocity of 100 kph, again with the same vehicle weights and impact angles as for TL-I and TL-2 tests.
- the barrier must keep the impact vehicle from penetrating and driving over the water wall, as well as keeping the impact vehicle from rolling over on its side or roof. Additionally, occupant velocity must not exceed 12 m/s, and the ride-down acceleration must not exceed 2Og.
- a barrier segment which is hollow and adapted to be filled with a fluent material for ballast.
- the barrier segment comprises a molded plastic container having outer walls defining an interior volume and having a first end and a second end.
- a plurality of connecting lugs are disposed on each of the first and second ends, so that a plurality of barrier segments may be joined together.
- a length of metallic cable preferably stainless steel wire rope cable, comprising a plurality of 1 " x 19" strands, is molded within the molded plastic container, so that most of the length of metallic cable is entirely disposed within the interior volume of the container, along substantially an entire length of the container between the first and second ends thereof.
- a loop of cable is disposed at each end of the length of cable, wherein each of the loops are wrapped about a pin hole disposed in one of the lugs.
- the length of metallic cable is connected between opposing lugs on the first and second ends of the container.
- additional lengths of metallic cable are provided, wherein there is a length of metallic cable connected between each pair of opposing lugs on the first and second ends of the container.
- a hole is molded into in each of the connecting lugs, for receiving a connecting pin.
- the inventive barrier includes a fence post adapted for disposition over a top end of a connecting pin, for supporting a fence above the barrier segment.
- a drain aperture in one of the outer walls of the barrier segment.
- a closure is provided for closing and sealing the drain aperture.
- the drain aperture comprises buttress threads disposed on an interior surface of the drain aperture. Threads are disposed on an outer surface of the closure, for engaging the buttress threads to secure the closure sealingly relative to the drain aperture.
- the buttress threads are coarse and square cut, with flat edges.
- Another advantageous feature of the invention is the provision of a recess disposed on the barrier segment outer wall, surrounding the drain aperture, having a depth sufficient so that when the closure is engaged with the drain aperture to close same, an outer surface of the closure is approximately flush with adjacent non-recessed portions of the outer wall.
- a barrier segment which is hollow and adapted to be filled with a fluent material for ballast.
- the barrier segment comprises a molded plastic container having outer walls defining an interior volume and having a first end and a second end.
- the outer walls have a plurality of sawtooth segments disposed thereon, which are arranged vertically and extend outwardly and downwardly in order to deflect vehicles impacting the barrier segment in a downward direction.
- a length of metallic cable is preferably molded within the molded plastic container, so that most of the length of metallic cable is entirely disposed within the interior volume, along substantially an entire length of the container between the first and second ends.
- a barrier segment which is hollow and adapted to be filled with a fluent material for ballast.
- the barrier segment comprises a molded plastic container having outer walls defining an interior volume and having a first end and a second end.
- a plurality of connecting lugs are disposed on each of the first and second ends, so that a plurality of barrier segments may be joined together.
- Each of the connecting lugs comprises a hole for receiving a connecting pin therethrough, and a double-walled reinforcing portion adjacent to the hole on the lug.
- a recessed section is disposed on an outside of each lug, which creates the double- walled reinforcing portion.
- a concave female portion on each end of the barrier segment, adjacent to said lugs provides beneficial effects when a barrier formed by multiple barrier segments, joined end-to-end, is impacted by a vehicle, as described more fully hereinbelow.
- each lengthwise outer wall is formed in a vertically oriented concave curved shape.
- a concave center portion of each lengthwise outer wall has a curve radius of 24 3/4 inches.
- a length of metallic cable is molded within the molded plastic container, so that most of the length of metallic cable is entirely disposed within the interior volume, along substantially an entire length of said container between the first and second ends.
- a method of making a barrier segment for use in creating a roadside barrier system comprises steps of disposing at least one wire rope cable within a mold tool, and using the mold tool to mold a plastic hollow container. When the molding step is completed, the wire rope cable is irremovably disposed within the plastic hollow container.
- the disposing step preferably comprises disposing a plurality of wire rope cables within the mold tool.
- a barrier segment which is hollow and adapted to be filled with a fluent material for ballast.
- the barrier segment comprises a molded plastic container having outer walls defining an interior volume and having a first end and a second end.
- a plurality of connecting lugs are disposed on each of the first and second ends, so that a plurality of barrier segments may be joined together.
- a drain aperture is disposed in one of the outer walls of the barrier segment, and a closure is provided for closing and sealing the drain aperture.
- buttress threads are disposed on an interior surface of the drain aperture. Threads are disposed on an outer surface of the closure, for engaging the buttress threads to secure the closure sealingly relative to the drain aperture.
- the buttress threads are coarse and square cut, with flat edges.
- a recess is disposed on the barrier segment outer wall, surrounding the drain aperture, having a depth sufficient so that when the closure is engaged with the drain aperture to close same, an outer surface of the closure is approximately flush with adjacent non-recessed portions of the outer wall.
- Fig. 1 is a plan view showing a configuration of a water barrier segment constructed in accordance with one embodiment of the present invention
- Fig. 2 is a perspective view of a portion of the barrier segment of Fig. 1 ;
- Fig. 3 is a perspective view of the barrier segment of Figs. 1 and 2;
- Fig. 4 is a front plan view of the barrier segment of Fig. 3;
- Fig. 5 is a left end view of the barrier segment of Figs. 1-4;
- Fig. 6 is a right end view of the barrier segment of Figs. 1-4
- Fig. 7 is a front plan view showing two barrier segment such as that shown in Fig. 4, wherein the segments are detached;
- Fig. 8 is a front plan view similar to Fig. 7, showing the barrier segments after they have been attached to one another;
- Fig. 9 is a perspective view, in isolation, of an interlocking knuckle for use in attaching two barrier segments together;
- Fig. 10 is a plan view showing a double wall reinforcement area for a pin lug on the barrier segment
- Fig. 11 is a front plan view similar to Fig. 7 showing a barrier segment
- Fig. 12 is a plan view from the top showing two connected barrier segments rotating with respect to one another upon vehicular impact;
- Fig. 13 is a cross-sectional view taken along lines A-A of Fig. 8, after vehicular impact and relative rotation of the two barrier segments;
- Fig. 14 is a cross-section view of the detail section C of Fig. 13;
- Fig. 15 is a plan view of a barrier segment of the type shown in Fig. 7, showing some of the constructional details of the segment;
- Fig. 16 is a top plan view of the barrier segment of Fig. 15;
- Fig. 17 is a side plan view of the barrier segment of Fig. 15;
- Fig. 18 is a perspective view showing three barrier segments secured together
- Fig. 19 is a perspective view of a second, presently preferred embodiment of a barrier segment constructed in accordance with the principles of the present invention.
- Fig. 20 is a front plan view of the barrier segment shown in Fig. 19;
- Fig. 21 is a side plan view of the barrier segment shown in Figs. 19-20;
- Fig. 22 is a top plan view of the barrier segment shown in Figs. 19-21 ;
- Fig. 23 is a perspective view of the barrier segment shown in Figs. 19- 22, taken from an opposing orientation;
- Fig. 24 is an end view of the barrier segment of Fig. 23;
- Fig. 25 is a perspective view of the barrier segment of Fig. 23, showing internal constructional features of the barrier segment, and in particular a unique cable reinforcement system;
- Fig. 26 is a front view of the barrier segment of Fig. 25;
- Fig. 27 is a detail view of the portion of Fig. 26 identified as detail A;
- Fig. 28 is a perspective view of the barrier segment of Figs. 19-27;
- Fig. 29 is a top plan view of the barrier segment of Fig. 28;
- Fig. 30 is a detail view of the portion of Fig. 29 identified as detail A;
- Fig. 31 is a perspective view showing three barrier segments secured together;
- Fig. 32 is a front view of a barrier segment constructed in accordance with the principles of the invention, in which is disposed a drain aperture having an inventive buttress thread configuration;
- Fig. 33 is an enlarged view of the drain aperture of Fig. 32.
- Fig. 34 is an enlarged perspective view of the drain aperture of Figs. 32 and 33.
- a water-ballasted barrier segment 10 constructed in accordance with one embodiment of the present invention.
- the illustrated barrier segment preferably has dimensions of approximately 18 in. W x 32 in. H x 78 in. L, with a material thickness of about 1/4 in.
- the material used to fabricate the segment 10 may be a linear medium density polyethylene, and is preferably rotationally molded, although it may also be molded using other methods, such as injection molding or blow molding.
- the segment 10 preferably has an empty weight of approximately 75-80 Ib., and a filled weight (when filled with water ballast) of approximately 1 100 Ib.
- the barrier segment 10 has been constructed using a unique concave reflective design, wherein outer walls 12 of the barrier segment 10 are configured in a concave manner, as shown.
- the concave section is approximately 71 inches long, and runs the entire length of the barrier segment.
- the concave section is designed to prevent the tire of a vehicle, impacting the barrier along the direction of arrow 14, from climbing up the side of the barrier segment, by pocketing the tire in the curved center portion of the barrier wall 12. When the vehicle tire is captured and pocketed inside the curved portion, the reaction force of the impact then diverges the vehicle in a downward direction, as shown by arrow 16 in Fig. 1.
- the concave diverging design will thus force the vehicle back toward the ground rather than up the side of the water barrier segment 10.
- the concave center portion of the outer wall 12 has a curve radius of approximately 24 3/4 in., and is about 23 inches in height.
- Figs. 3-11 illustrate an interlocking knuckle design for securing adjacent barrier segments 10 together.
- the interlocking knuckle design is a lug pin connection system, comprising four lugs 18 disposed in interweaved fashion on each end of the barrier segment 10. Each lug 18 is preferably about 8 inches in diameter, and approximately 2 inches thick, although various dimensions would be suitable for the inventive purpose.
- the first lug 18 is disposed 4 inches from the top of the segment 10. The remaining three lugs 18 are equally spaced vertically approximately 3 1 A inches apart. On a second end 22 of the barrier segment 10, the first lug 18 is disposed about 7 inches from the top of the barrier segment 10, with the remaining three lugs 18 being again equally spaced vertically approximately 3 1 A inches apart. These dimensions are preferred, but again, may be varied within the scope of the present invention.
- each lug 18 has a pin receiving hole 24 disposed therein, as best shown in Fig. 10.
- a T-pin 26 is slid vertically downwardly through the corresponding pin receiving holes 24 of all eight lugs or knuckles 18, as shown in Fig. 8, in order to lock the two adjoined barrier segments 10 together.
- a double wall reinforcement 28 is included on the backside of the hole 24 on the lug 18, as shown in Fig. 10.
- the wall is created by making an indentation 30 on an outer curved section 32 of the lug 18, as shown in Fig. 9.
- the removal of material on the outside curved section 32 of the lug 18 creates a wall on the inside section of the lug.
- the wall created by the recessed section 30 on the outside of the lug creates a reinforcement section 28 against the vertical hole 24 in the lug 18, as shown in Fig. 10.
- the T- pin 26 has two approximately 1/4 inch thick surfaces to support the load during vehicular impact. This arrangement will distribute the bearing load over a larger area, with thicker material.
- a concave inward stress transfer zone is formed between the male protruding lugs 18, as shown in Figs. 12-14.
- the concave inward section creates a concave female portion 34 at the ends of each water wall segment where the male end of each lug 18 will slide inside when aligned, as illustrated.
- the male lugs 18 are not in contact with any surface inside the concave female portion 34 of the barrier segment 10.
- the t-pins 26 are designed to support a square or round tubular fence post 38, as shown in Fig. 18.
- the tubular post 38 is adapted to slip over the t-pin, with suitable retaining structure disposed to ensure that the post 38 is firmly retained thereon.
- each barrier segment 10 is placed at a desired location while empty, and relatively light. This placement may be accomplished using a forklift, for example, utilizing forklift apertures 39. Once the segments are in place, and connected as described above, they can then be filled with water, using fill apertures 39a as shown in Fig. 3. When it is desired to drain a barrier segment, drain apertures, such as aperture 39b in Fig. 15, may be utilized.
- a second embodiment of a water-ballasted barrier segment 110 is illustrated, wherein like elements are designated by like reference numerals, preceded by the numeral 1.
- This barrier segment 110 is preferably constructed to have overall dimensions of approximately 24 in. W x 42 in. H x 78 in. L, with a material thickness of about 1/4 inches. As in the prior embodiment, these dimensions are presently preferred, but not required, and may be varied in accordance with ordinary design considerations.
- the material of which the barrier segment 10 is fabricated is preferably a high density polyethylene, and the preferred manufacturing process is rotational molding, although other known processes, such as injection molding or blow molding, may be used.
- the illustrated embodiment utilizes a unique configuration to ensure that an impacting vehicle will be prevented from driving up and over the segment 10 upon impact.
- This configuration comprises a saw tooth profile, as illustrated, which is designed into the top portion of the barrier segment 10, as shown in Figs. 19-24.
- the design intent of the saw tooth profile is to snag the bumper, wheel, or any portion of a vehicle impacting the barrier 10 from a direction indicated by arrow 114 (Fig. 23) and to deflect the vehicle in a downward direction as indicated by arrow 116 (Fig. 23).
- the saw tooth profile shape runs the entire length of each section of the barrier segment 10, as shown.
- a first protruding segment or sawtooth 40 begins to protrude approximately 20 inches above the ground, and second and third protruding segments 42, 44, respectively are disposed above the segment 40, as shown.
- second and third protruding segments 42, 44 are disposed above the segment 40, as shown.
- more or fewer sawtooth segments may be utilized, depending upon particular design considerations.
- the design intent of using a plurality of sawtooth segments is that, if the first tooth or segment 40 does not succeed in containing the vehicle and re-directing it downwardly to the ground, the second or third teeth 42, 44, respectively, should contain the vehicle before it can successfully climb over the barrier 10.
- the first embodiment of the invention illustrated in Figs.
- the inventors To contain the 100 kph impacting vehicle, the inventors have used the interlocking knuckle design described earlier in connection with the TL-I and TL-2 water barrier system described and shown in Figs. 1-18 of this application. The same type of design principles are used in connection with this larger TL-3 water barrier system, which includes the same interlocking knuckle attachment system disclosed in connection with the first embodiment.
- the TL-3 barrier system described herein in connection with Figs. 19-31 absorbs energy by plastic deformation, wire rope cable fencing tensioning, water dissipation, and overall displacement of the water barrier itself. Since it is known that plastic alone cannot withstand the vehicular impact, internally molded into the barrier segment 1 10 is a wire rope cable 46, which is used to create a submerged fence inside the water barrier segment 1 10 as shown in Figs. 25 and 26. Before the barrier segment 110 is molded, the wire rope cables 46 are placed inside the mold tool. The cables are made with an eyelet or loop 48 (Fig. 30) at each end, and are placed in the mold so that the cable loops 48 wrap around the t-pin hole 124 outside diameter as shown in Fig. 27.
- the wire rope cables 46 are each comprised of stainless steel, to resist corrosion due to their contact with the water ballast, and are formed of approximately 1" X 19" strands.
- the cables 46 By placing the cables 46 around the t-pin holes 124, dual fence posts are created on each side of the barrier segment 110, with five cable lines 46 disposed in between, thereby forming a cable fence in addition to the water ballast. It is noted that the wire cable is completely covered in plastic during the rotational molding process, to prevent water leakage.
- a high strength area in the interlocking knuckles is created.
- the t-pin 126 is dropped into the hole 124, to connect a series of barrier segments 110, it automatically becomes a steel post by default, since the wire rope cable segments 46 are already molded into the barrier segments. Since the loop of each cable end wraps around the t-pin in each knuckle, the impacting vehicle will have to break the wire rope cable 46, t-pin 126, and knuckle in order to penetrate the barrier.
- Figs. 28-30 illustrate how the wire rope cables 46 wrap the T-pin holes 124.
- the wire rope cables 46 are part of each barrier segment 110, and cannot be removed once the part has been manufactured.
- the current design uses up to five wire rope cables 46 per barrier segment 110, as illustrated. This creates a ten piece interlocking knuckle section. More or fewer knuckles and wire rope cables may be utilized, depending upon whether a lower or taller barrier is desired.
- the wire rope fence construction disclosed in connection with this second TL-3 embodiment can also be incorporated into the lower height barrier illustrated and described in Figs. 1-17. When large numbers of barrier segments are used to create a longitudinal barrier, a wire rope cable fence is formed, with a t-pin post, with the whole assembly being ballasted by water without seeing the cable fencing. Fig.
- each barrier segment is approximately 1400 Ib when filled with water.
- the plastic begins to deform and break, water ballast is displaced, and the wire rope cables 46 begin to absorb energy by pulling along the knuckles and pulling the wire rope cables in tension.
- the entire area of impact immediately becomes a wire rope cable fence in tension, holding the impacting vehicle on one side of the water ballasted barrier.
- the aperture 39b is disposed within a recess 50 in a bottom portion of the barrier segment 10.
- a closure or cap 52 is provided for closing and sealing the aperture 39b to prevent leakage of ballast from the barrier segment 10.
- the closure 52 is secured in place by means of a series of buttress threads 54 (Figs. 33, 34).
- the buttress threads 54 are coarse and square cut, with flat edges 55, and advantageously function to create a hydraulic seal through the interference fit between the threads 54 on the aperture 39b and mating threads 56 on the closure 52.
- the closure 52 comprises, in the preferred embodiment, a plastic plug which is threaded into the barrier segment outer wall 12 by means of the intercngaging buttress threads 54, 56, as described above.
- a sealing washer on the plug 52 sits, in a flat profile, on the sealing surface on the barrier wall 12 once the threads are engaged.
- This flat profile results in a lower chance of leakage, with no need to over-tighten the plug 52.
- the unique design results in a much reduced chance of cross-threading the plug when threading it into the wall, compared with prior art approaches, and it is much easier to start the thread of the plug into the barrier wall. Because of the recess 50, the plug 52 is flush or even recessed relative to the wall, which reduces the chances of damage to the plug during use.
- the thread 54 is uniquely cast-molded into the wall, which is typically roto-molded. Avoidance of spin- welding, which is a typical prior art technique for fabricating threads of this type in a roto-molded device, surprisingly greatly reduces the chance of damage to the barrier and closure due to cracking and stripping.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2008/083691 WO2010056251A1 (en) | 2008-11-14 | 2008-11-14 | Water-ballasted protection barrier |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2356285A1 true EP2356285A1 (en) | 2011-08-17 |
EP2356285A4 EP2356285A4 (en) | 2014-01-01 |
EP2356285B1 EP2356285B1 (en) | 2015-07-15 |
Family
ID=42170189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08878186.9A Active EP2356285B1 (en) | 2008-11-14 | 2008-11-14 | Water-ballasted protection barrier |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2356285B1 (en) |
JP (1) | JP5571678B2 (en) |
WO (1) | WO2010056251A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT507611B1 (en) * | 2008-11-20 | 2010-08-15 | Mathias Mag Redlberger | CONNECTING DEVICE FOR CONNECTING TRACE ELEMENTS TO TRAFFIC SURFACES |
EP2674406B1 (en) | 2011-02-10 | 2020-08-19 | Sekisui Chemical Co., Ltd. | Laminated glass intermediate film and laminated glass |
JP6226908B2 (en) * | 2014-08-05 | 2017-11-08 | 株式会社ニュー・メソッド | Heavy structure |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6086285A (en) * | 1994-07-20 | 2000-07-11 | Off The Wall Products, Llc | Interlocking control barrier systems |
US20070098490A1 (en) * | 2005-10-31 | 2007-05-03 | Off The Wall Products, Llc | Low profile barriers |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4681302A (en) * | 1983-12-02 | 1987-07-21 | Thompson Marion L | Energy absorbing barrier |
CA2106042C (en) * | 1992-09-14 | 1997-01-07 | William G. Krage | Roadside barrier |
US5605413A (en) * | 1995-06-26 | 1997-02-25 | Brown; James C. | Highway barricade |
US6474904B1 (en) * | 2001-09-24 | 2002-11-05 | Barrier Systems, Inc. | Traffic barrier with liquid filled modules |
US6669402B1 (en) * | 2003-01-09 | 2003-12-30 | Safety Barriers, Inc. | Protection barrier system |
US7220077B2 (en) * | 2004-04-06 | 2007-05-22 | Cyro Industries | Traffic noise barrier system |
-
2008
- 2008-11-14 EP EP08878186.9A patent/EP2356285B1/en active Active
- 2008-11-14 WO PCT/US2008/083691 patent/WO2010056251A1/en active Application Filing
- 2008-11-14 JP JP2011536296A patent/JP5571678B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6086285A (en) * | 1994-07-20 | 2000-07-11 | Off The Wall Products, Llc | Interlocking control barrier systems |
US20070098490A1 (en) * | 2005-10-31 | 2007-05-03 | Off The Wall Products, Llc | Low profile barriers |
Non-Patent Citations (1)
Title |
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See also references of WO2010056251A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2010056251A1 (en) | 2010-05-20 |
JP5571678B2 (en) | 2014-08-13 |
EP2356285B1 (en) | 2015-07-15 |
EP2356285A4 (en) | 2014-01-01 |
JP2012508839A (en) | 2012-04-12 |
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