GB2224529A - Tensioned cable safety fence with cable release - Google Patents
Tensioned cable safety fence with cable release Download PDFInfo
- Publication number
- GB2224529A GB2224529A GB8826141A GB8826141A GB2224529A GB 2224529 A GB2224529 A GB 2224529A GB 8826141 A GB8826141 A GB 8826141A GB 8826141 A GB8826141 A GB 8826141A GB 2224529 A GB2224529 A GB 2224529A
- Authority
- GB
- United Kingdom
- Prior art keywords
- safety fence
- cable
- cables
- cable safety
- post
- 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.)
- Withdrawn
Links
- 125000006850 spacer group Chemical group 0.000 claims abstract description 17
- 230000004888 barrier function Effects 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000002028 premature Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 206010017076 Fracture Diseases 0.000 description 5
- 238000005452 bending Methods 0.000 description 5
- 208000010392 Bone Fractures Diseases 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 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
- E01F15/06—Continuous barriers extending along roads or between traffic lanes essentially made of cables, nettings or the like
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
A tensioned wire cable safety fence in which upper and lower tensioned wires are positioned in long slots formed in the top of each post. The upper and lower cables are separated by a spacer 14. The spacer is a sliding fit into the slot over the top of the lower cable and under the upper cable. The upper is released before the lower on vehicle impact. <IMAGE>
Description
IMPROVEMENTS IN OR RELATING TO SAFETY FENCES
This invention relates to safety fences designed to redirect or prevent passage of vehicles over prohibited ground and is particularly, but not exclusively, applicable to safety fences used on the sides of roads or central reservations of high-speed carriageways, roads or motorways, or embankments.
It is known that safety fences are available consisting of a number of spaced upright posts to which are clamped a number of tensioned horizontal wire ropes. It has been found that these known wire rope fences may be satisfactory when a vehicle approaches a fence at a relatively large angle of impact exceeding 200 whereas at small angles of impact below 0 approximately 10 the vehicle may tend to spin or roll off the fence with consequent danger to the occupants of the vehicle. It is believed that one of the factors contributing to this hazard is the fact that the ropes are normally clamped to the steel posts by means of 'U' bolts or other heavy attachment devices which are strong enough to withstand the collision loading.
The disadvantage of clamping wire ropes to posts is overcome by the invention described in UK
Patent No. 1,103,873 in which the tension cables are positioned as a slack fit in vertical slots in posts fixed into the ground. Tensioned cables act as a continuous beam to redirect a colliding vehicle smoothly back on to the roadway.
UK Patent 1,103,873 provides for upper ropes supported in slots in the top of the post and lower ropes supported in brackets on either side of the post.
The testing of safety fence constructions in accordance with this patent has shown that the penetration is greater than that permitted in certain circumstances. It has also been shown that the release of the cables from the slots, whether in the posts or in the brackets, caused by the post deflection, may give rise to a situation that the cables are released too quickly or too far ahead of an impact point. This led to cables going slack too far ahead of impact and insufficient restraint for the vehicle and a danger that the vehicle will run over cable or cables lying on the ground.
The post for all the wire rope fences previously referred to have a main web and at least one flange with a cross-section, such as an 'I' section, with the main web of the section extending transversely in the direction of the cables. The post therefore has its weak axis in the direction of the fence, such that it can be more easily run down.
It is believed that the correct juxtaposition of tension cables and posts in the wire rope safety fence according to the invention met the objectives and the tests laid down by the Ministry of Transport at that time. For over 16 years such a wire rope safety fence has been used on the Pennine section of the M62 motorway and has proved to have had considerable advantages over standard type central reservation barriers, in particular they have prevented buildup of drifting snow.
It is an object of the present invention to overcome the disadvantages of the cable safety fence system described in UK Patent No. 1,103,873 to produce better control of the action of a vehicle during impact.
Applicant's co-pending application of the same filing date relates to an alternative cable safety fence system which may be equally advantageous depending on circustances and differing legal requirements laid down by the authorities.
Accordingly, the invention provides in one aspect a cable safety fence comprising at least a pair of tensioned cables supported and located in a single slot in the upper end each of a number of posts, the cables being separated from each other in the single slot by a spacer inserted between the cables to provide at least an upper cable and a lower cable in said single slot whereby the lower cable is released from the slot after impact on a post subsequent to the release of the upper cable.
Preferably the slot in the posts carries two upper cables, the spacer and two lower cables in a vertical arrangement. The spacer preferably has a length of the order of 150-300mm and this separates the upper cable from the lower cable when in position by a vertical distance of the order of 235mm. Conveniently, the spacer is formed to slide into the slot on top of the lower cable when in position.
The depth of the slot for the cable safety fence described in UK Patent No. 1,103,873 is stated as preferably between 3" and 6", and more particularly 4.5". It will be appreciated that the slot according to the present invention has to accommodate the upper cable, the spacer and the lower rope and is considerably deeper.
The preferred depth of the slot in the posts of the cable safety fence according to the present invention may be of the order of 250mm.
According to another preferred factor of the invention, the posts are strengthened below and on opposite sides of the slot whereby impact on the post causes deformation of the post at just above ground level and not failure of the post in the region of the slot.
A preferred form of post is made from pressed steel of 'S' or 'Z' cross-section in which the width of the post is increased in the slotted region to provide extra material to reduce the likelihood of fracture in the region of the slots allowing premature cable release on impact with the post.
The post may be strengthened in the region of the slot whereby likelihood of fracture of the post in the slotted region permitting premature release of the cables is reduced.
Means may be provided across the top of the slot so that release of the cables is determined by the load at which said means is pre-set to facture.
The means may be a shear bolt.
The post may be parallel-sided in the lower region and then increasing in width before the lower end of the slot so that the material on either side of the slot is of the same order of width as the width of the slot in the lower region thereof.
According to yet another feature of the invention, a cable safety fence may have adjacent cable ends between posts spaced apart for vehicle access, joined by a quick-release mechanism between posts so as to provide road access through the barriers for emergencies, for example.
In another embodiment according to the invention, a corrugated tensioned beam barrier may incorporate a section or a continuation of cable safety fence anchored at one end to an end of a conventional beam barrier and tensioned. Such a corrugated tensioned beam barrier and wire rope barrier system may be provided to contain an existing corrugated beam barrier which has been damaged or to extend permanently an existing corrugated beam barrier with the improved wire rope safety fence, or to provide a safety fence in a gap in the existing corrugated beam barrier.
The posts are preferably of 'S' or 'Z' section such that the rounded corner is offered to the direction of the traffic. Such a design of post permits bending along the weaker axis, but does not provide solid restriction when a vehicle impacts the fence 0 at 90 , since the post will twist slightly and bend on the preferred weak axis.
The posts may be located in the ground either as a driven post, i.e. a post having a plate welded to its lower section to prevent over-turning on impact, or a concrete footing which prevents over-turning of the post and allows the post to bend during impact.
The concrete footing may either be of a precast design having an internal socket or opening to receive the post and thus to enable the height of the post to be set accurately on installation.
Such preformed footings overcome the problem of soft ground and the difficulty of ensuring that the oost is installed properly to the right depth and with the required strength of the concrete infill. In addition, when it is necessary to replace the posts because of vehicle impact, the impacted posts can be readily withdrawn and the replacement posts inserted immediately, thus facilitating re-erection of the damaged barrier in a very short period of time.
Due to the design of the safety fence, one fence on the central reservation will serve both carriageways. After an impact, repair is speedy and economic requiring damaged supports to be removed and new ones inserted, the wire ropes being re-located and possibly re-tensioned, but not necessarily replaced. Repair work could be carried out from either carriageway.
In another embodiment according to the invention, a known corrugated tensioned beam barrier may be incorporated within, or parallel with, or be a continuation of, a wire rope safety fence, such that the wire ropes can be attached to the conventional beam barrier. This may also be provided to contain deflection around existing road furniture on the central reservation which is required to be protected by a barrier of less deflection than the wire rope safety fence. Such a combined beam wire rope system may provide a wire rope safety fence as a first or additional barrier to be encountered by a vehicle before the corrugated beam barrier is encountered.
The posts may be of 'S' or 'Z' section and may be formed from pressed sheet steel of a thickness between 3mm and 7mm and adapt to deflect or distort under impact from a vehicle. The bending moment at yield of the post should be less than 6,000 Nm in its weakest plane.
The invention may be performed in various ways and a number of possible embodiments will now be described by way of example with reference to the accompanying drawings in which:
Figure 1 shows a cable support post disclosed in- UK Patent No. 1,103,873;
Figure 2 shows a 4-cable safety fence with the spacers in position;
Figures 3a and 3b show a post slot and wire spacer for the safety fence according to the invention;
Figure 4 shows typical pre-cast footings for the posts;
Figure 5 shows a quick-release system to provide emergency access;
Figure 6 shows a cable safety fence system attached at one end to a known corrugated tension beam barrier;
Figure 7 shows how a cable safety fence may be used in parallel or as a first barrier with a corrugated tension beam barrier forming a second or final barrier;;
Figure 8 which shows a means for closing the gap in the slot above the top cable, and
Figure 9 shows a form of strengthened post where the width of the material on both sides of the slot is increased to reduce the risk of fracture by the force of the cables being displaced on impact.
If the post is not provided with the widened end section the long slots may reduce the strength of the posts leading to possible early fracture.
As will be seen from Figure 1 of UK Patent
No. 1,103,873, the cable supporting post 1 has a slot 2 in the top thereof; an upper cable 3 is indicated in position at the bottom of the slot 2. A lower cable 4 is positioned at the bottom of a slot formed in a bracket 5 attached to the post 1.
The upper rope 3 and the lower rope 4 are parallel to each other and with this form of cable support, the deflection of the fence under impact is greater than now required by the Department of
Transport. In addition, bending of the post caused by impact may release the lower and upper cables from their respective slots more or less simultaneously and thus lead to the cables being released too quickly or too far ahead from the impact point 6 causing lowering of the cable, reducing restraint further ahead and increasing the likelihood of vehicles passing over the cables.
Figures 2, 3a and 3b relate to the present invention. A number of posts are inserted into the ground (not shown) either into recesses in pre-cast footings or by any other suitable means. Suitable pre-cast footings are shown in Figure 4. Other post retention means to be inserted into the ground may be used. For example, cast or pressed steel hollow, tube-like structures, having a plate welded to its lower end to prevent overturning on impact, are alternatives but are not illustrated and not described.
The posts 6, 7 and 8 have respectively long slots 9, 10 and 11 formed in their upper ends.
Two lower ropes 12 and 13 are positioned on top of one another in the slots 9, 10 and 11 with the rope 13 resting on the rope 12 and vertically above it. A spacer 14 more clearly shown in Figures 3 and 3a is then placed in the slot and finally ropes 15 and 16 are placed on top of one another. A cap 17 is placed over the end of the post.
All four ropes are anchored to a suitable anchoring point and tensioned between 1,000 and 5,000
KgF. This is not described in detail and is similar to the wire rope safety fence system in UK Patent
No. 1,103,873.
The manner in which the ropes are anchored, how the anchorages are staggered along the length of the fence and how the cables are restrained by tethering wires when they are released from anchorages, is well known from the practice of wire fences that are already in use.
Figure 4 shows cross-sections of suitable pre-cast footings which are suitable for wire cable safety fences and enable quick replacement of damaged posts. Furthermore, as compared with the posts used for tensioned beam barrier posts for cable wire fences according to the present invention, require bending above ground on impact. Posts for corrugated tensioned beam barriers are often simply driven into soft ground since no bending is required on impact with the beam barrier which is just pulled out of the ground and/or fractured by impact.
Figure 5 shows a tyDical quick-release mechanism which can be utilised to join all four of the cables in a 4-wire system such that they can be disconnected to provide easy access in the case of accidents.
Figure 6 shows how a wire rope fencing system 26 may be attached to the ends of a corrugated tensioned beam barrier 27. This enables replacement of a tensioned beam barrier when damaged or extensions of motorway where it has been decided to take advantage of the tensioned wire cable safety fence without incurring the costs of replacing the tensioned beam barrier already in place.
Figure 7 shows how a tensioned wire cable safety fence 28 may be placed in parallel with a tensioned beam barrier so that vehicles leaving the carriageway into the central reservation will first be restrained by the cable safety fence and secondly by the final barrier formed by the tensioned beam barrier. In a similar manner, wire cable safety fences may be positioned to restrain vehicles from other road furniture, lighting and road signs, for example.
A shear bolt 20 is shown in Figure 8 closing the open-ended slots over the cables and spacers.
This allows the top cables, and hence the remainder of the cables in sequence, to be released from the slot when the post is deformed by vehicle impact.
The load at which this shear pin 20 fractures may be determined to delay the release of cables when the posts are deformed by impact.
A reinforced post 21 is shown in Figure 9.
A slot 22 for the cables is formed in a wider end section 23. Thus on each side of the cables there are two limbs 24 and 25 which are of the same order as the width of the lower end of the post 21. Putting a slot 22 in a post without such strengthening weakens the post in the slotted region and may fail too soon under impact.
Claims (24)
1. A cable safety fence comprising at least a pair of tensioned cables supported and located in a single slot in the upper end of each of a number of posts, the cables being separated from each other in the single slot by a spacer inserted between the cables to provide at least one upper cable and a lower cable in said single slot whereby the lower cable is released from the slot after the post is deformed by impact subsequent to the release of the upper cable.
2. A cable safety fence according to Claim 1 in which the slot carries two upper cables, the spacer and two lower cables, all placed above one another.
3. A cable safety fence according to Claim 1 or Claim 2 in which the spacer has a length of 150300mm.
4. A cable safety fence according to Claims 1, 2 or 3 in which the spacer separates the lower and upper cables by 235mm.
5. A cable safety fence according to any of Claims 1 to 4 where the spacer slides into the slot in grooves formed in the edge of the spacer.
6. A cable safety fence according to any of Claims 1 to 5 in which the slot is of the order of 250mm.
7. A cable safety fence according to any of Claims 1 to 6 in which the post is strengthened in the region of the slot whereby likelihood of fracture of the post in the slotted region permitting premature release of the cables is reduced.
8. A cable safety fence according to any of Claims 1 to 6 in which means are provided across the top of the slot so that release of the cables is determined by the load at which said means is pre-set to fracture.
9. A cable safety fence according to Claim 8 in which the means is a shear bolt.
10. A cable safety fence according to Claims 1 to 9 in which the adjacent cable ends between posts are spaced apart for vehicle access and joined by a quick-release mechanism between posts so as to provide road access through the barriers for emergencies, for example.
11. A cable safety fence as claimed in any of the preceding claims in which the cables are anchored at one end to a corrugated beam barrier.
12. A cable safety fence as claimed in any of the preceding claims in which the posts are of 'S' or 'Z' section such that the rounded corner is offered to the direction of the traffic.
13. A cable safety fence as claimed in any of the preceding claims in which the post has a plate welded to its lower section to prevent over-turning on impact
14. A cable safety fence as claimed in any of
Claims 1 to 13 in which the post has a concrete footing which allows the post to bend during impact.
15. A cable safety fence as claimed in Claim 14 in which the concrete footing is precast and has an internal socket or opening to receive the post and thus to enable the height of the post to be set accurately on installation.
16. A cable safety fence as claimed in any of the preceding claims arranged in parallel with a corrugated tensioned beam barrier whereby the cable safety fence forms a first barrier and the corrugated tensioned beam barrier a second barrier.
17. A cable safety fence as claimed in any of the preceding claims in which the upper cable or cables is set at a height of between 575mm and 615mm and the lower cables set at a height of between 450mm and 500mm.
18. A cable safety fence as claimed in any of the preceding claims in which the upper cable or cables are set at a height of 585mm and the lower cables at a height of 490mm.
19. A cable safety fence as claimed in any of the preceding claim in which all cables are tensioned to between 1,000 and 5,000 Kgf.
20. A cable safety fence as claimed in any of the preceding claims wherein the posts are parallelsided inthe lower region and then increasing in width before the lower end of the slot so that the material on either side of the slot is of the same order of width as the width of the slot in the lower region thereof.
21. A cable safety fence substantially as described by way of example only with reference to Figures 2 and 3 of the accompanying diagrammatic drawings.
22. A cable safety fence substantially as described by way of example only incorporating the elements of Figures 4 or 5.
23. A cable safety fence substantially as described by way of example only with reference to Figures 6 or 8.
24. A cable safety fence according to any of the preceding claims where the upper end of the post is closed by a shear bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8826141A GB2224529A (en) | 1988-11-08 | 1988-11-08 | Tensioned cable safety fence with cable release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8826141A GB2224529A (en) | 1988-11-08 | 1988-11-08 | Tensioned cable safety fence with cable release |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8826141D0 GB8826141D0 (en) | 1988-12-14 |
| GB2224529A true GB2224529A (en) | 1990-05-09 |
Family
ID=10646499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8826141A Withdrawn GB2224529A (en) | 1988-11-08 | 1988-11-08 | Tensioned cable safety fence with cable release |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2224529A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996029473A1 (en) * | 1995-03-20 | 1996-09-26 | Gunnar Davidsen | A profile unit for cable crash barriers |
| EP1158102A2 (en) * | 2000-05-26 | 2001-11-28 | Blue Systems AB | Roadside guard cable fence |
| WO2002063103A1 (en) * | 2001-01-12 | 2002-08-15 | Allmaco Saferoad Ab | Stanchion for steel-rope barrier |
| GB2383362A (en) * | 2001-12-18 | 2003-06-25 | Brifen Ltd | Apparatus for connecting a wire rope safety barrier to a beam safety barrier |
| WO2003102310A1 (en) * | 2002-05-28 | 2003-12-11 | Trinity Industries, Inc. | Cable safety system |
| GB2406127A (en) * | 2003-09-17 | 2005-03-23 | Hill & Smith Holdings Plc | Road safety barriers |
| US7249908B2 (en) | 2004-10-28 | 2007-07-31 | Trinity Industries, Inc. | Combined guardrail and cable safety systems |
| GB2466878A (en) * | 2009-01-08 | 2010-07-14 | Hill & Smith Ltd | Post for use in wire rope road safety fences |
| JP2012012808A (en) * | 2010-06-30 | 2012-01-19 | Jfe Metal Products & Engineering Inc | Guard cable |
| JP2012052322A (en) * | 2010-08-31 | 2012-03-15 | Jfe Metal Products & Engineering Inc | Guard cable |
| WO2012037607A1 (en) * | 2010-09-24 | 2012-03-29 | Industrial Galvanizers Corporation Pty Ltd | A wire rope or cable safety barrier system typically for roadside use |
| US20190186092A1 (en) * | 2017-12-18 | 2019-06-20 | Neusch Innovations, Lp | Passive anti-ram vehicle barrier |
| US11162234B2 (en) | 2015-04-22 | 2021-11-02 | Neusch Innovations, Lp | Anti-ram passive vehicle barrier |
| US12037756B2 (en) | 2015-04-22 | 2024-07-16 | Neusch Innovations, Lp | Post and beam vehicle barrier |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411823B (en) * | 2018-03-01 | 2023-05-05 | 苏州科技大学 | Assembled flexible anti-collision guardrail |
| CN115323961B (en) * | 2022-07-11 | 2024-03-19 | 泉州装备制造研究所 | Road safety guard rail |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1272588A (en) * | 1968-09-04 | 1972-05-03 | British Ropes Ltd | Improvements in or relating to vehicle retention barriers |
-
1988
- 1988-11-08 GB GB8826141A patent/GB2224529A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1272588A (en) * | 1968-09-04 | 1972-05-03 | British Ropes Ltd | Improvements in or relating to vehicle retention barriers |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996029473A1 (en) * | 1995-03-20 | 1996-09-26 | Gunnar Davidsen | A profile unit for cable crash barriers |
| EP1158102A2 (en) * | 2000-05-26 | 2001-11-28 | Blue Systems AB | Roadside guard cable fence |
| EP1158102A3 (en) * | 2000-05-26 | 2003-10-29 | Blue Systems AB | Roadside guard cable fence |
| WO2002063103A1 (en) * | 2001-01-12 | 2002-08-15 | Allmaco Saferoad Ab | Stanchion for steel-rope barrier |
| GB2383362A (en) * | 2001-12-18 | 2003-06-25 | Brifen Ltd | Apparatus for connecting a wire rope safety barrier to a beam safety barrier |
| GB2383362B (en) * | 2001-12-18 | 2005-06-15 | Brifen Ltd | High integrity transition for safety barriers |
| WO2003102310A1 (en) * | 2002-05-28 | 2003-12-11 | Trinity Industries, Inc. | Cable safety system |
| US6962328B2 (en) | 2002-05-28 | 2005-11-08 | Trn Business Trust | Cable safety system |
| GB2406127A (en) * | 2003-09-17 | 2005-03-23 | Hill & Smith Holdings Plc | Road safety barriers |
| US8985891B1 (en) | 2003-09-17 | 2015-03-24 | Hill & Smith Limited | Posts for road safety barrier |
| US7544009B2 (en) | 2004-10-28 | 2009-06-09 | Trinity Industries, Inc. | Combined guardrail and cable safety systems |
| US7686535B2 (en) | 2004-10-28 | 2010-03-30 | Trinity Industries, Inc. | Combined guardrail and cable safety systems |
| US8157471B2 (en) | 2004-10-28 | 2012-04-17 | Trinity Industries, Inc. | Combined guardrail and cable safety systems |
| US7249908B2 (en) | 2004-10-28 | 2007-07-31 | Trinity Industries, Inc. | Combined guardrail and cable safety systems |
| GB2466878A (en) * | 2009-01-08 | 2010-07-14 | Hill & Smith Ltd | Post for use in wire rope road safety fences |
| JP2012012808A (en) * | 2010-06-30 | 2012-01-19 | Jfe Metal Products & Engineering Inc | Guard cable |
| JP2012052322A (en) * | 2010-08-31 | 2012-03-15 | Jfe Metal Products & Engineering Inc | Guard cable |
| WO2012037607A1 (en) * | 2010-09-24 | 2012-03-29 | Industrial Galvanizers Corporation Pty Ltd | A wire rope or cable safety barrier system typically for roadside use |
| AU2011305056B2 (en) * | 2010-09-24 | 2015-05-21 | Industrial Galvanizers Corporation Pty Ltd | A wire rope or cable safety barrier system typically for roadside use |
| US11162234B2 (en) | 2015-04-22 | 2021-11-02 | Neusch Innovations, Lp | Anti-ram passive vehicle barrier |
| US12037756B2 (en) | 2015-04-22 | 2024-07-16 | Neusch Innovations, Lp | Post and beam vehicle barrier |
| US20190186092A1 (en) * | 2017-12-18 | 2019-06-20 | Neusch Innovations, Lp | Passive anti-ram vehicle barrier |
| US11198980B2 (en) * | 2017-12-18 | 2021-12-14 | Neusch Innovations, Lp | Passive anti-ram vehicle barrier |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8826141D0 (en) | 1988-12-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |