CA2168329C - Reflective markers for traffic barriers - Google Patents
Reflective markers for traffic barriersInfo
- Publication number
- CA2168329C CA2168329C CA002168329A CA2168329A CA2168329C CA 2168329 C CA2168329 C CA 2168329C CA 002168329 A CA002168329 A CA 002168329A CA 2168329 A CA2168329 A CA 2168329A CA 2168329 C CA2168329 C CA 2168329C
- Authority
- CA
- Canada
- Prior art keywords
- marker
- marker according
- leg
- wing
- body portion
- 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.)
- Expired - Fee Related
Links
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
- E01F15/083—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 concrete
-
- 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
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
- E01F9/669—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing for fastening to safety barriers or the like
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Signs Or Road Markings (AREA)
Abstract
A reflective marker is provided for use with interlocking barriers at the sides of roadways or between lanes in multi-lane roads, in order to enhance the visibility of the interlocking barriers in poorly lit conditions. The marker comprises a substantially flat body portion, two legs and at least one wing having a reflective material on at least a portion thereof. The marker preferably has a slot constriction means comprising two triangularly shaped tabs on each leg, each tab being the shape of a congruent, equilateral triangle. One side of each of the congruent triangles is aligned in side by side contacting relation with the other of the congruent triangles.
Once installed, the marker is not readily detachable from the concrete barrier by wind, vibration or vandalism. The marker is inexpensive to manufacture, simple to install, and requires little storage space.
Once installed, the marker is not readily detachable from the concrete barrier by wind, vibration or vandalism. The marker is inexpensive to manufacture, simple to install, and requires little storage space.
Description
~16832g FIELD OF THE INVENTION
The present invention relateæ to reflective markers for concrete road traffic barriers.
R~C~ OUND OF THE INVENTION
It is common to use interlocking barriers at the side of roadways or between lanes in multi-lane roads. A typical interlocking concrete barrier is shown in Canadian Patent Application No. 2 006 477 to Marino Girotti, which was published July 17, 1990. The profile of the concrete barrier is designed to deflect a vehicle back into the right of way if the vehicle accidentally side-swipes the barrier. In order to enhance the visibility of the barriers in poorly lit conditions, light-reflective markers are attached to the barriers.
Two kinds of reflective markers have found favour. One is semi-permanent and often is bolted to the side of the barrier.
The other is removable. A typical removable marker, which is shaped to straddle the barrier, is shown in U.S. Patent 4 986 694 which issued January 22, 1991 to P.A. Delamere. This marker is hollow, for the purpose of filling with sand in order to prevent the marker from being dislodged by wind or from being stolen.
Delamere's marker has several disadvantages. They are expensive to manufacture, requiring rotational moulding equipment or similar. They are heavy and bulky, and typically only 50 or so can be stacked on a truck or skid. Additionally, they are labour 216~329 intensive to install and remove and may require more than one worker to lift into place atop the traffic barrier. Ease of installing and removing markers is especially important with respect to temporary traffic barriers that may be erected around construction zones to redirect traffic for relatively short periods of time.
It is desirable to provide a marker which is cheap, easy to install and takes up little storage space. Such a member should not be readily detachable from the concrete barrier by wind, vibration or vandalism, etc. The present invention is directed to such a marker.
SUMMARY OF THE INVENTION
The present invention provides a reflective marker for an interlocking barrier comprising:
i) a substantially flat body portion having a longitudinal axis and two edges substantially parallel to said axis, said flat body portion being in a first plane;
ii) two legs depending from the body portion, said legs being separated by a slot through which said longitudinal axis passes, and each leg having an end distal from the body portion, and 216~29 iii) at least one wing, each wing being attached to one of said edges to the flat body portion and extending away from said longitudinal axis, and at least one wing has a reflective material on at least a portion of said wing.
In one embodiment, one wing is flat, in a second plane which intersects with the first plane at said edge.
- In a further embodiment, the angle between said first and second planes is from 20 to 40.
In another embodiment, the marker has two wings, each being on opposing sides of the longitudinal axis.
In yet another embodiment, the second planes for each wing are parallel to one another.
In another embodiment, the second planes for each wing are oriented at mirror image angles to one another.
In another embodiment, at least the wings have a reflective material on at least a portion of said wings.
In a further embodiment, the end of at least one leg has slot constriction means attached thereto.
In one embodiment, the slot constriction means comprises a triangularly shaped tab on each leg.
216832g In a further embodiment the triangularly shaped tabs on each leg are comprised of congruent, equilateral triangles, and one side of each of said congruent triangles is aligned in side by side contacting relation with the other of said congruent triangles.
Other advantages, features and characteristics of the present invention, as well as methods of operation and functions of the related elements of the structure, and the combination of parts and economies of manufacture, will become more apparent upon consideration of the following detailed description and the appended claims with reference to the accompanying drawings, the latter of which is briefly described hereinbelow.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is an end view of an interlocking concrete barrier with a marker of the present invention secured in place.
Figure 2 is a three-quarter view, partly cut-away, showing a marker of the present invention about to be installed between two interlocking concrete barriers.
Figure 3 is a plan view of two interlocking concrete barriers with a marker of the present invention installed there-between.
216832~
r Figure 4 is a plan view of two interlocking concrete barriers with an alternative embodiment of a marker according to the present invention installed therebetween.
DET~TT~n DESCRIPTION OF A PREFERRED EMBODIMENT
Figure 1 shows a marker 10 comprising a body portion 11 and two depending legs 12 and 13. The body portion 11 has two wing portions 14 and 15. The legs are separated by a slot 16 which is sufficiently wide and long to fit over elongated male connector 17 of concrete barrier 18. Legs 12 and 13 have tabs 19 and 20 respectively near the extremities of the legs. Tabs 19 and 20 extend at least partway across the slot.
In the embodiment shown in Figures 1-3, wings 14 and 15 are in planes which are at an angle to the plane of body 11.
Preferably the angle between the wing plane and the body plane are from 20 to 40. Preferably, the angle is about 30 for best visibility. Each wing has a front side and a back side. The angle between a plane passing through the front side of a wing and the plane passing through the flat body portion is an acute angle. The angle between a plane passing through the back side of the wing and the plane passing through the flat body portion is an obtuse angle. The embodiment of Figures 1-3 is particularly suited for bi-directional traffic flow, i.e., where 216~329 the traffic on either side of the barrier is moving in opposed direction, as indicated by arrows A and B of Figure 3.
The top of body portion 11 and the front sides of wings 14 and 15 have reflective material R thereon to enhance visibility of the marker. The reflective material is typically in stripes as shown in Figures 1 and 2. The reflective material may be applied in the form of adhesive tape, may be printed thereon or otherwise placed on the marker in manners known in the art. Alternatively, reflective disks or similar may be glued or mechanically fixed to the marker. The reflective material may be any suitable colour, especially highly visible colours such as orange, yellow or white.
Figures 2 and 3 show two conventional concrete barriers 18 and 21 abutted against one another. One end of concrete barrier 18 has a vertical T-shaped male connector 17. One end of concrete barrier 21 has a vertical trough 23 with a vertical slot therein, into which fits male connector 17. In Figure 2, part of concrete barrier 21 is shown with phantom lines 22 so that the male connector 17 is more easily depicted. The fit of male connector into trough 23 is sufficient for it to allow a gap 24 between adjacent concrete barriers 18 and 21. This permits one concrete barrier to be placed at a slight angle to the abutting concrete barrier to accommodate, for example, curves in roads or gradually blocking off a lane in a roadway.
- 216~329 When the concrete barriers are in place, the marker of the present invention may be attached. As will be seen in Figure 2, the marker 10, with legs 10 and 12 depending downwardly is pushed between gap 24 in the direction shown by the arrow.
Marker 10 is of a sufficiently flexible material, eg.
polyethylene or polypropylene that the legs may be splayed outwardly slightly in order to open up slot 16 sufficiently to allow tabs 19 and 20 to separate and to thrust slot 16 over male connector 17. Marker 10 may then be slid downwardly so that male connector 17 fits inside slot 16. Marker 10 is slid downwardly at least until tabs 19 and 20 are beneath lower end 25 of male connector 17. Slot restriction means, in the form of tabs 19 and 20, substantially close off slot 16 so that it is difficult to remove marker 10 by pulling marker 10 upwardly. This feature is particularly important in areas where theft of such markers may be a problem. It is usually not necessary to move the markers unless the barrier is being moved elsewhere. The markers can easily be removed when concrete barrier 21 has been lifted out of place. Alternatively, it is possible to remove the marker by lifting it upwardly, as long as sufficient force is used to do so. Of course, if there are no tabs 19 and 20 present, removal of marker 10 is relatively easy.
Other means for constricting the slot may be used. For example, the triangular tabs 19 and 20 may be replaced by barbs which make it almost impossible to remove marker 10 without first separating concrete barriers 18 and 21. Alternatively, the distal ends of the legs may have transverse slots therein for 2168~29 holding a metal rod, so that the metal rod blocks off the end of slot 16, thus preventing removal of marker 10. However, part of the rod must be easily grasped in order to remove it prior to removal of the marker. Hidden slot constriction means are far preferable in situations where stealing of markers is a problem.
As will be seen more clearly from Figure 3, wings 14 and 15 are preferably at an angle relative to body portion 11.
It has been found that the reflective surfaces of the markers may be seen more easily by drivers if the wings are angled at from 20 to 40! and especially from 25 to 35relative to body portion 11. The embodiment of Figure 4 differs from that of Figures 1-3 only in that the wings 14 and 15 are in planes congruently angled toward the longitudinal axis in intersecting relation with each other. That is, the wings 14 and 15 are bent inwardly toward the longitudinal axis of the body plane at substantially the same angle, so as to be at mirror image angles to one another. This is especially desirable for unidirectional traffic flow on either side of the barrier, i.e., where the traffic is moving in opposite directions as indicated by arrows A and B of Figure 4. Otherwise, the embodiment illustrated in Figure 4 is substantially the same as the embodiment illustrated in Figures 1-3, and for this reason, identical reference numerals have been used to identify the analogous parts in the two embodiments.
The markers of the present invention may be made from any suitable materials. For example, disposable markers may be made from strong corrugated card or corrugated plastic. More 216~32~
durable markers may be made from synthetic thermoplastic polymers, eg. vinyls, or polyolefins such as polyethylene, polypropylene, or from metals such as steel or aluminum. When tabs 19 and 20 are present, the legs should be sufficiently flexible to allow the legs to be splayed apart and thus permit male connector 17 to easily enter slot 16.
When the markers are made of a thermoplastic polymer, it is advantageous to mould the marker so that the wings are angled relative to the body portion. Alternatively, the marker could be moulded flat and the wings angled at a later time, either by heat setting or by bending a coined hinge. When the markers are made of metal, the angle may be formed in a stamping process.
As will be seen from the drawings, the edge joining the body portion and wing may be tapered slightly to match the taper on the upper portion of the concrete barrier. A typical taper to the edge is about 6 relative to the longitudinal axis.
An advantage of the present marker is that it is compact and stackable. It takes up very little room and hundreds can be transported in the back of a pick-up truck. They are light and can be installed by a single person. Furthermore, they are relatively cheap to manufacture.
The present invention relateæ to reflective markers for concrete road traffic barriers.
R~C~ OUND OF THE INVENTION
It is common to use interlocking barriers at the side of roadways or between lanes in multi-lane roads. A typical interlocking concrete barrier is shown in Canadian Patent Application No. 2 006 477 to Marino Girotti, which was published July 17, 1990. The profile of the concrete barrier is designed to deflect a vehicle back into the right of way if the vehicle accidentally side-swipes the barrier. In order to enhance the visibility of the barriers in poorly lit conditions, light-reflective markers are attached to the barriers.
Two kinds of reflective markers have found favour. One is semi-permanent and often is bolted to the side of the barrier.
The other is removable. A typical removable marker, which is shaped to straddle the barrier, is shown in U.S. Patent 4 986 694 which issued January 22, 1991 to P.A. Delamere. This marker is hollow, for the purpose of filling with sand in order to prevent the marker from being dislodged by wind or from being stolen.
Delamere's marker has several disadvantages. They are expensive to manufacture, requiring rotational moulding equipment or similar. They are heavy and bulky, and typically only 50 or so can be stacked on a truck or skid. Additionally, they are labour 216~329 intensive to install and remove and may require more than one worker to lift into place atop the traffic barrier. Ease of installing and removing markers is especially important with respect to temporary traffic barriers that may be erected around construction zones to redirect traffic for relatively short periods of time.
It is desirable to provide a marker which is cheap, easy to install and takes up little storage space. Such a member should not be readily detachable from the concrete barrier by wind, vibration or vandalism, etc. The present invention is directed to such a marker.
SUMMARY OF THE INVENTION
The present invention provides a reflective marker for an interlocking barrier comprising:
i) a substantially flat body portion having a longitudinal axis and two edges substantially parallel to said axis, said flat body portion being in a first plane;
ii) two legs depending from the body portion, said legs being separated by a slot through which said longitudinal axis passes, and each leg having an end distal from the body portion, and 216~29 iii) at least one wing, each wing being attached to one of said edges to the flat body portion and extending away from said longitudinal axis, and at least one wing has a reflective material on at least a portion of said wing.
In one embodiment, one wing is flat, in a second plane which intersects with the first plane at said edge.
- In a further embodiment, the angle between said first and second planes is from 20 to 40.
In another embodiment, the marker has two wings, each being on opposing sides of the longitudinal axis.
In yet another embodiment, the second planes for each wing are parallel to one another.
In another embodiment, the second planes for each wing are oriented at mirror image angles to one another.
In another embodiment, at least the wings have a reflective material on at least a portion of said wings.
In a further embodiment, the end of at least one leg has slot constriction means attached thereto.
In one embodiment, the slot constriction means comprises a triangularly shaped tab on each leg.
216832g In a further embodiment the triangularly shaped tabs on each leg are comprised of congruent, equilateral triangles, and one side of each of said congruent triangles is aligned in side by side contacting relation with the other of said congruent triangles.
Other advantages, features and characteristics of the present invention, as well as methods of operation and functions of the related elements of the structure, and the combination of parts and economies of manufacture, will become more apparent upon consideration of the following detailed description and the appended claims with reference to the accompanying drawings, the latter of which is briefly described hereinbelow.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is an end view of an interlocking concrete barrier with a marker of the present invention secured in place.
Figure 2 is a three-quarter view, partly cut-away, showing a marker of the present invention about to be installed between two interlocking concrete barriers.
Figure 3 is a plan view of two interlocking concrete barriers with a marker of the present invention installed there-between.
216832~
r Figure 4 is a plan view of two interlocking concrete barriers with an alternative embodiment of a marker according to the present invention installed therebetween.
DET~TT~n DESCRIPTION OF A PREFERRED EMBODIMENT
Figure 1 shows a marker 10 comprising a body portion 11 and two depending legs 12 and 13. The body portion 11 has two wing portions 14 and 15. The legs are separated by a slot 16 which is sufficiently wide and long to fit over elongated male connector 17 of concrete barrier 18. Legs 12 and 13 have tabs 19 and 20 respectively near the extremities of the legs. Tabs 19 and 20 extend at least partway across the slot.
In the embodiment shown in Figures 1-3, wings 14 and 15 are in planes which are at an angle to the plane of body 11.
Preferably the angle between the wing plane and the body plane are from 20 to 40. Preferably, the angle is about 30 for best visibility. Each wing has a front side and a back side. The angle between a plane passing through the front side of a wing and the plane passing through the flat body portion is an acute angle. The angle between a plane passing through the back side of the wing and the plane passing through the flat body portion is an obtuse angle. The embodiment of Figures 1-3 is particularly suited for bi-directional traffic flow, i.e., where 216~329 the traffic on either side of the barrier is moving in opposed direction, as indicated by arrows A and B of Figure 3.
The top of body portion 11 and the front sides of wings 14 and 15 have reflective material R thereon to enhance visibility of the marker. The reflective material is typically in stripes as shown in Figures 1 and 2. The reflective material may be applied in the form of adhesive tape, may be printed thereon or otherwise placed on the marker in manners known in the art. Alternatively, reflective disks or similar may be glued or mechanically fixed to the marker. The reflective material may be any suitable colour, especially highly visible colours such as orange, yellow or white.
Figures 2 and 3 show two conventional concrete barriers 18 and 21 abutted against one another. One end of concrete barrier 18 has a vertical T-shaped male connector 17. One end of concrete barrier 21 has a vertical trough 23 with a vertical slot therein, into which fits male connector 17. In Figure 2, part of concrete barrier 21 is shown with phantom lines 22 so that the male connector 17 is more easily depicted. The fit of male connector into trough 23 is sufficient for it to allow a gap 24 between adjacent concrete barriers 18 and 21. This permits one concrete barrier to be placed at a slight angle to the abutting concrete barrier to accommodate, for example, curves in roads or gradually blocking off a lane in a roadway.
- 216~329 When the concrete barriers are in place, the marker of the present invention may be attached. As will be seen in Figure 2, the marker 10, with legs 10 and 12 depending downwardly is pushed between gap 24 in the direction shown by the arrow.
Marker 10 is of a sufficiently flexible material, eg.
polyethylene or polypropylene that the legs may be splayed outwardly slightly in order to open up slot 16 sufficiently to allow tabs 19 and 20 to separate and to thrust slot 16 over male connector 17. Marker 10 may then be slid downwardly so that male connector 17 fits inside slot 16. Marker 10 is slid downwardly at least until tabs 19 and 20 are beneath lower end 25 of male connector 17. Slot restriction means, in the form of tabs 19 and 20, substantially close off slot 16 so that it is difficult to remove marker 10 by pulling marker 10 upwardly. This feature is particularly important in areas where theft of such markers may be a problem. It is usually not necessary to move the markers unless the barrier is being moved elsewhere. The markers can easily be removed when concrete barrier 21 has been lifted out of place. Alternatively, it is possible to remove the marker by lifting it upwardly, as long as sufficient force is used to do so. Of course, if there are no tabs 19 and 20 present, removal of marker 10 is relatively easy.
Other means for constricting the slot may be used. For example, the triangular tabs 19 and 20 may be replaced by barbs which make it almost impossible to remove marker 10 without first separating concrete barriers 18 and 21. Alternatively, the distal ends of the legs may have transverse slots therein for 2168~29 holding a metal rod, so that the metal rod blocks off the end of slot 16, thus preventing removal of marker 10. However, part of the rod must be easily grasped in order to remove it prior to removal of the marker. Hidden slot constriction means are far preferable in situations where stealing of markers is a problem.
As will be seen more clearly from Figure 3, wings 14 and 15 are preferably at an angle relative to body portion 11.
It has been found that the reflective surfaces of the markers may be seen more easily by drivers if the wings are angled at from 20 to 40! and especially from 25 to 35relative to body portion 11. The embodiment of Figure 4 differs from that of Figures 1-3 only in that the wings 14 and 15 are in planes congruently angled toward the longitudinal axis in intersecting relation with each other. That is, the wings 14 and 15 are bent inwardly toward the longitudinal axis of the body plane at substantially the same angle, so as to be at mirror image angles to one another. This is especially desirable for unidirectional traffic flow on either side of the barrier, i.e., where the traffic is moving in opposite directions as indicated by arrows A and B of Figure 4. Otherwise, the embodiment illustrated in Figure 4 is substantially the same as the embodiment illustrated in Figures 1-3, and for this reason, identical reference numerals have been used to identify the analogous parts in the two embodiments.
The markers of the present invention may be made from any suitable materials. For example, disposable markers may be made from strong corrugated card or corrugated plastic. More 216~32~
durable markers may be made from synthetic thermoplastic polymers, eg. vinyls, or polyolefins such as polyethylene, polypropylene, or from metals such as steel or aluminum. When tabs 19 and 20 are present, the legs should be sufficiently flexible to allow the legs to be splayed apart and thus permit male connector 17 to easily enter slot 16.
When the markers are made of a thermoplastic polymer, it is advantageous to mould the marker so that the wings are angled relative to the body portion. Alternatively, the marker could be moulded flat and the wings angled at a later time, either by heat setting or by bending a coined hinge. When the markers are made of metal, the angle may be formed in a stamping process.
As will be seen from the drawings, the edge joining the body portion and wing may be tapered slightly to match the taper on the upper portion of the concrete barrier. A typical taper to the edge is about 6 relative to the longitudinal axis.
An advantage of the present marker is that it is compact and stackable. It takes up very little room and hundreds can be transported in the back of a pick-up truck. They are light and can be installed by a single person. Furthermore, they are relatively cheap to manufacture.
Claims (15)
1. A reflective marker for an interlocking barrier comprising:
i) a substantially flat body portion having a longitudinal axis and two edges substantially parallel to said axis, said flat body portion being in a first plane;
ii) two legs depending from the body portion, said legs being separated by a slot through which said longitudinal axis passes, and each leg having an end distal from the body portion, and iii) at least one wing, each wing being attached to one of said edges to the flat body portion and extending away from said longitudinal axis, and at least one wing has a reflective material on at least a portion of said wing.
i) a substantially flat body portion having a longitudinal axis and two edges substantially parallel to said axis, said flat body portion being in a first plane;
ii) two legs depending from the body portion, said legs being separated by a slot through which said longitudinal axis passes, and each leg having an end distal from the body portion, and iii) at least one wing, each wing being attached to one of said edges to the flat body portion and extending away from said longitudinal axis, and at least one wing has a reflective material on at least a portion of said wing.
2. A marker according to Claim 1, wherein one wing is flat, in a second plane which intersects with the first plane at said edge.
3. A marker according to Claim 2, wherein the angle between said first and second planes is from 20° to 40°.
4. A marker according to Claim 2, wherein the marker has two wings, each being on opposing sides of the longitudinal axis.
5. A marker according to Claim 4, wherein the second planes for each wing are parallel to one another.
6. A marker according to Claim 5, wherein the angle between said first and second planes is from 30° to 40°.
7. A marker according to claim 4, wherein the second planes for each wing are congruently angled toward said longitudinal axis in intersecting relation with each other.
8. A marker according to Claim 1, wherein the end of at least one leg has slot constriction means attached thereto.
9. A marker according to Claim 3, wherein the end of at least one leg has slot constriction means attached thereto.
10. A marker according to Claim 6, wherein the end of at least one leg has slot constriction means attached thereto.
11. A marker according to Claim 8, wherein the slot constriction means comprises a triangularly shaped tab on each leg.
12. A marker according to Claim 9, wherein the slot constriction means comprises a triangularly shaped tab on each leg.
13. A marker according to Claim 10, wherein the slot constriction means comprises a triangularly shaped tab on each leg.
14. A marker according to Claim 12, wherein said triangularly shaped tabs on each leg are comprised of congruent, equilateral triangles, and wherein one side of each of said congruent triangles is aligned in side by side contacting relation with the other of said congruent triangles.
15. A marker according to Claim 13, wherein said triangularly shaped tabs on each leg are comprised of congruent, equilateral triangles, and wherein one side of each of said congruent triangles is aligned in side by side contacting relation with the other of said congruent triangles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002168329A CA2168329C (en) | 1996-01-29 | 1996-01-29 | Reflective markers for traffic barriers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002168329A CA2168329C (en) | 1996-01-29 | 1996-01-29 | Reflective markers for traffic barriers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2168329A1 CA2168329A1 (en) | 1997-07-30 |
| CA2168329C true CA2168329C (en) | 1999-05-04 |
Family
ID=4157456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002168329A Expired - Fee Related CA2168329C (en) | 1996-01-29 | 1996-01-29 | Reflective markers for traffic barriers |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2168329C (en) |
-
1996
- 1996-01-29 CA CA002168329A patent/CA2168329C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2168329A1 (en) | 1997-07-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |