CA1235279A - Pole structure with diagonal inner bracing - Google Patents
Pole structure with diagonal inner bracingInfo
- Publication number
- CA1235279A CA1235279A CA000470035A CA470035A CA1235279A CA 1235279 A CA1235279 A CA 1235279A CA 000470035 A CA000470035 A CA 000470035A CA 470035 A CA470035 A CA 470035A CA 1235279 A CA1235279 A CA 1235279A
- Authority
- CA
- Canada
- Prior art keywords
- channel members
- structural
- pole
- braces
- interconnected
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/10—Truss-like structures
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
- Electric Cable Installation (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Control Of Transmission Device (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
POLE STRUCTURE WITH DIAGONAL INNER BRACING
ABSTRACT OF THE DISCLOSURE
A structural pole comprising a pair of upright metal channel members having an elongated flat outer wall with inwardly extending transverse structural flanges.
The channel members are interconnectible in substantially parallel relationship, with their flanges extending inwardly, by a series of diagonal inner braces inter-connected together and to said outer walls and spanning diagonally across the channel members and disposed in a predetermined pattern throughout the length of the channel members. Each of the diagonal braces is an elongated structural bar having flat angulated connecting ends having a through bore therein and securable to the channel members by overlapping the connecting ends of adjacent diagonal braces. A fastener interconnects each of the overlapping connecting ends with the flat outer wall of the channels whereby the structural pole is resistant to eccentric loads.
ABSTRACT OF THE DISCLOSURE
A structural pole comprising a pair of upright metal channel members having an elongated flat outer wall with inwardly extending transverse structural flanges.
The channel members are interconnectible in substantially parallel relationship, with their flanges extending inwardly, by a series of diagonal inner braces inter-connected together and to said outer walls and spanning diagonally across the channel members and disposed in a predetermined pattern throughout the length of the channel members. Each of the diagonal braces is an elongated structural bar having flat angulated connecting ends having a through bore therein and securable to the channel members by overlapping the connecting ends of adjacent diagonal braces. A fastener interconnects each of the overlapping connecting ends with the flat outer wall of the channels whereby the structural pole is resistant to eccentric loads.
Description
~23~279 BACKGROUND OF INVENTION:
_ (a) Field of the Invention The present invention relates to an improved structural pole construction, particularly, but not exclusively, for use in transmission lines. Particularly, the structural pole of the present invention is comprised of two upright metal channel members interconnected by diagonal structural bars extending serially across the channel members whereby the pole is resistant to eccentric loads.
(b) ~escription of Prior Art Various structural pole constructions are known.
For example, reference is made to Canadian patent 1,073,632 issued on March 18, 1980 and granted to Tri-Steel Fabricators Ltd. and relating to a semi-lattice pole construction comprising opposed channel members inter-connected by a plurality of cross-arm braces disposed on opposed sides of the channel members. It can be seen that such a structural pole requires many parts for its construction, i.e., braces and bolts, and is time consuming to assemble.
There exists the need to provide a pole structure which is economical to construct and assemble and requires very little parts whilst maintaining the structural integrity of such structural pole of the prior art referred hereinabove. There is also the need to provide such a pole structure whereby the assembly thereof can be done with the use of power tools. There is also a need to provide a pole which is smaller in cross-section than the known semi-lattice pole while retaining the same structural strength ~2~
as the prior art pole thereby permitting more poles to be placed in a carrier such as a flat-bed truck, for transporting such poles to the installation site. Still further, there is a need to provide a pole which has a good aesthetic design and of a construction whereby not to generate eccentricity when subjected to loading.
SU~M~R~ OF I~VE~ITIO~:
It is a feature of the present invention to provide an improved structural pole construction meeting all of the above-mentioned needs.
According to the above feature, from a broad aspect, the present invention provides a structural pole comprising a pair of upright metal channel members having an elongated flat outer wall with inwardly extending transverse structural flanges. I'he channel members are interconnectible in substantially parallel rela-tionship, with their flanges extending inwardly, by a series of individual inner braces interconnected toge-ther and to the outer walls, and spanning diagonally across the channel members and disposed in a predetermined pa-ttern throughout the lengths of the channel members. Each diagonal brace is a straight elongated structural bar of angular cross-section having flat angulated connecting ends. A through bore is provided in the connecting ends and securable to the channel members by overlapping -the connecting ends of adjacent diagonal braces. A fastener extends through the through bores of the overlapped connecting ends for interconnecting each of the overlap-ping connecting ends with the flat outer wall of the channels whereby the structural pole is resistant to eccentric loads. The inner braces in at least a lower portion of the pole are interconnected diagonally across ~2~
alternating sides of the channel members with an interme-diate diagonal brace extending diagonally across opposed sides of the channel members and interconnected with ends of the braces on alternating sides of the channel members.
- 2a -~23~7~
BRIEF DESCRIPTION OF DRAWINGS:
An example of the preferred embodiment of the present invention will now be described with reference to the accompanying drawings in which~
FIGURE 1 is a perspective fragmented view showing a structural pole of the present invention as used to support a transmission line mast, FIGURE 2 is a fragmented section view of the structural pole, FIGURE 3A is a cross-section view of the structural pole showing a centrally connected inner brace, FIGURE 3B is a cross-section view of the struc-tural pole showing offset and diagonally connected inner braces, FIGURE 4 is a side view of a lower pole section, and FIGURE 5 is a side view of the diagonal brace.
DESCRIPTION OF PREFERRED EMBODIMENTS:
Referring now to the drawings and more particu-larly to Figure 1, there is shown generally at 10 the structural pole of the present invention. The pole is comprised essentially of a pair of upright metal channel members 11 and 11' which are interconnected in substan-tially parallel relationship by a plurality of inwardly disposed braces 12 extending diagonally along the length of the pole. As herein shown, the base 13 of the pole is secured in a concrete form 14 located beneath a ground surface 15. The top end of the pole 10 supports a trans-mission line mast 16. Of course, the pole can be used for a multitude of other applications and may be inter-connected with like poles to form support columns.
~Z~27g Referring now to Figures 2 to 4, it can be seen that the channel members 11 and 11' are formed steel channel members having an elongated flat outer wall 17 and transverse opposed structural flanges 18.
The ends of the structural flanges 18 are provided with a right angled inner lip 19 extending inwardly and parallel to the flat outer wall whereby to provide more structural rigidity to the channel members. However, when assembling a pole with a plurality of interconnected channel members, the top ones of the channel members need not have flanges with inner lips 19 as they are subjected to less loading than the bottom channel members where more structural strength is requiredO
Referring additionally to Figure 5, the channel members 11 and 11' are interconnected in parallel relation-ship by a series of diagonally disposed inner braces 12 which are elongated structural bars, herein angle iron bars having a cross-wall 20 formed with right angle sections which are of equal width and form a right angle structure brace. The ends of the bars are flattened to form angulated connecting ends 22. The connecting ends are provided with one or two, herein one, through bore 23 which is centrally aligned with the apex 21 of the bar. The connecting ends 22 of each bar 12 is overlapped with a connecting end 22 of an adjacent bar (see Figure 2) and interconnected together by a fastener 24 which extends through aligned bores 23 of overlapped interconnecting ends 22 and a bore 25 provided in the outer wall 17 of the channelsll and 11', respectively.
Thus, a single bolt fastener secures opposed ends of diagonal braces 12 to the channels with the bars 12 ~235279 spanning the structural channels 11 and 11' throughout the length of the pole. Therefore, any load on the poles will be transmitted to the cGnnecting points (the bolt connection 24) disposed on opposed walls whereby the channels are not subjected to eccentric loads.
As shown in Figures 1 and 2, a pol~ is constructed by interconnecting two or more pairs of channel members 11 and 11' end-to-end by a telescopic overlap section, as illustrated at 27. The telescopic connection simply 1~ consists in providing a top pole section which is provided with like channel members 28 and 28~, but of smaller size whereby to slide fit inside a top portion of the channels 11 and 11' respectively. A plurality of splice bolts 29 would then secure these overlapped ends together~ Trans-verse cross braces 30 may also interconnect the channels 11, 11' and 28 and 28' together and solidify the splice.
Also, the braces 12 are disposed such that a brace 12' spans the splice region 27 to strengthen the joint.
It is well known in the art that the load on a support pole increases in the downward direction of the pole. This is the reason why wooden poles have a larger diameter at the bottom and taper to a smaller top diameter.
The pole of the present invention is likewise made stronger at the bottom than at the top and this is achieved by interconnecting the braces 12 of the bottom channel members 11 and 11' in a pattern wherein the load is distributed at various transverse points across the channel members. This is achieved as shown in Figure 3B by alternating the disposition of adjacent interconnected braces 12. As herein shown, a brace 12' is connected diagonally between ~:35279 the two channel members 11 and 11' offset to one common side of the channel members. The next diagonal brace 12"
extends diagonally across opposed sides of the channel members while the next brace 12"' extends diagonally between the other common side of the channel members.
This pattern provides for a stronger po~e section by providing improved torsional resistance and preventing the side wall 17 from bowing out. Additionally, depending on the loading of the pole, an elongated reinforcing rib 31 may be formed in the outer wall 17 of the channel members 11 and 11' and located centrally thereof, whereby to strengthen the wall 17 and lower pole section.
The pattern of these braces 12 can vary along the length of the pole dependent on the number of pairs of channel members being interconnected end to end. For example, the upper sections of the pole may have all their braces interconnected along a common central plane 26 as illustrated in Figure 3A as this facilitates installation.
Also, the flanges 18 of the top channel members need not have a right angle inner lip 19 as shown in Figure 3B, as this section of the pole is subjected to less stress.
Some of the channel members 11 and 11' (those used in the top region of the pole) may also be provided with inter-spaced series of three holes 32 (see Figure 4) for attach-ment of the braces 12 in any desired abovementioned configuration. The space holes 32 may be used to attach auxiliary equipment to the pole, such as guy wires, trans-formers, platforms (not shown), etc.
It can be seen that with the structural pole construction just described that very few component parts ~:3S~
are provided and particularly very few fasteners are required to interconnect the opposed channel ~embers to one another through the diagonal bars. Also, with this construction there is no obstruction to opposed sides of the channel members and therefore power tools can be utilized from both sides of the channels to assemble the pole. Still further, auxiliary equipment, such as transformers, brackets, connectors, etc., may be easily attached to these poles without obstruction. As previously mentioned, the pole is easier and more quickly installed reducing the assembly cost thereof, and is easy to manipu-late and install in a suitable footing. Also, experiments have demonstrated that poles can be strengthened by the configuration of the serially interconnected braces which span the opposed channel members internally of the pole.
Because of the small surface area that the pole occupies, it is possible to assemble these in a plant and then transport many of these on a single flat-bed truck to the erection site. A still further advantage of this pole is that it is of a more pleasing aesthetic design which is an advantage when a pole line extends through a residential community.
It is within the ambit of the present invention to cover any obvious modifications of the example of the preferred embodiment described herein provided such modifications fall within the scope of the appended claims.
_ (a) Field of the Invention The present invention relates to an improved structural pole construction, particularly, but not exclusively, for use in transmission lines. Particularly, the structural pole of the present invention is comprised of two upright metal channel members interconnected by diagonal structural bars extending serially across the channel members whereby the pole is resistant to eccentric loads.
(b) ~escription of Prior Art Various structural pole constructions are known.
For example, reference is made to Canadian patent 1,073,632 issued on March 18, 1980 and granted to Tri-Steel Fabricators Ltd. and relating to a semi-lattice pole construction comprising opposed channel members inter-connected by a plurality of cross-arm braces disposed on opposed sides of the channel members. It can be seen that such a structural pole requires many parts for its construction, i.e., braces and bolts, and is time consuming to assemble.
There exists the need to provide a pole structure which is economical to construct and assemble and requires very little parts whilst maintaining the structural integrity of such structural pole of the prior art referred hereinabove. There is also the need to provide such a pole structure whereby the assembly thereof can be done with the use of power tools. There is also a need to provide a pole which is smaller in cross-section than the known semi-lattice pole while retaining the same structural strength ~2~
as the prior art pole thereby permitting more poles to be placed in a carrier such as a flat-bed truck, for transporting such poles to the installation site. Still further, there is a need to provide a pole which has a good aesthetic design and of a construction whereby not to generate eccentricity when subjected to loading.
SU~M~R~ OF I~VE~ITIO~:
It is a feature of the present invention to provide an improved structural pole construction meeting all of the above-mentioned needs.
According to the above feature, from a broad aspect, the present invention provides a structural pole comprising a pair of upright metal channel members having an elongated flat outer wall with inwardly extending transverse structural flanges. I'he channel members are interconnectible in substantially parallel rela-tionship, with their flanges extending inwardly, by a series of individual inner braces interconnected toge-ther and to the outer walls, and spanning diagonally across the channel members and disposed in a predetermined pa-ttern throughout the lengths of the channel members. Each diagonal brace is a straight elongated structural bar of angular cross-section having flat angulated connecting ends. A through bore is provided in the connecting ends and securable to the channel members by overlapping -the connecting ends of adjacent diagonal braces. A fastener extends through the through bores of the overlapped connecting ends for interconnecting each of the overlap-ping connecting ends with the flat outer wall of the channels whereby the structural pole is resistant to eccentric loads. The inner braces in at least a lower portion of the pole are interconnected diagonally across ~2~
alternating sides of the channel members with an interme-diate diagonal brace extending diagonally across opposed sides of the channel members and interconnected with ends of the braces on alternating sides of the channel members.
- 2a -~23~7~
BRIEF DESCRIPTION OF DRAWINGS:
An example of the preferred embodiment of the present invention will now be described with reference to the accompanying drawings in which~
FIGURE 1 is a perspective fragmented view showing a structural pole of the present invention as used to support a transmission line mast, FIGURE 2 is a fragmented section view of the structural pole, FIGURE 3A is a cross-section view of the structural pole showing a centrally connected inner brace, FIGURE 3B is a cross-section view of the struc-tural pole showing offset and diagonally connected inner braces, FIGURE 4 is a side view of a lower pole section, and FIGURE 5 is a side view of the diagonal brace.
DESCRIPTION OF PREFERRED EMBODIMENTS:
Referring now to the drawings and more particu-larly to Figure 1, there is shown generally at 10 the structural pole of the present invention. The pole is comprised essentially of a pair of upright metal channel members 11 and 11' which are interconnected in substan-tially parallel relationship by a plurality of inwardly disposed braces 12 extending diagonally along the length of the pole. As herein shown, the base 13 of the pole is secured in a concrete form 14 located beneath a ground surface 15. The top end of the pole 10 supports a trans-mission line mast 16. Of course, the pole can be used for a multitude of other applications and may be inter-connected with like poles to form support columns.
~Z~27g Referring now to Figures 2 to 4, it can be seen that the channel members 11 and 11' are formed steel channel members having an elongated flat outer wall 17 and transverse opposed structural flanges 18.
The ends of the structural flanges 18 are provided with a right angled inner lip 19 extending inwardly and parallel to the flat outer wall whereby to provide more structural rigidity to the channel members. However, when assembling a pole with a plurality of interconnected channel members, the top ones of the channel members need not have flanges with inner lips 19 as they are subjected to less loading than the bottom channel members where more structural strength is requiredO
Referring additionally to Figure 5, the channel members 11 and 11' are interconnected in parallel relation-ship by a series of diagonally disposed inner braces 12 which are elongated structural bars, herein angle iron bars having a cross-wall 20 formed with right angle sections which are of equal width and form a right angle structure brace. The ends of the bars are flattened to form angulated connecting ends 22. The connecting ends are provided with one or two, herein one, through bore 23 which is centrally aligned with the apex 21 of the bar. The connecting ends 22 of each bar 12 is overlapped with a connecting end 22 of an adjacent bar (see Figure 2) and interconnected together by a fastener 24 which extends through aligned bores 23 of overlapped interconnecting ends 22 and a bore 25 provided in the outer wall 17 of the channelsll and 11', respectively.
Thus, a single bolt fastener secures opposed ends of diagonal braces 12 to the channels with the bars 12 ~235279 spanning the structural channels 11 and 11' throughout the length of the pole. Therefore, any load on the poles will be transmitted to the cGnnecting points (the bolt connection 24) disposed on opposed walls whereby the channels are not subjected to eccentric loads.
As shown in Figures 1 and 2, a pol~ is constructed by interconnecting two or more pairs of channel members 11 and 11' end-to-end by a telescopic overlap section, as illustrated at 27. The telescopic connection simply 1~ consists in providing a top pole section which is provided with like channel members 28 and 28~, but of smaller size whereby to slide fit inside a top portion of the channels 11 and 11' respectively. A plurality of splice bolts 29 would then secure these overlapped ends together~ Trans-verse cross braces 30 may also interconnect the channels 11, 11' and 28 and 28' together and solidify the splice.
Also, the braces 12 are disposed such that a brace 12' spans the splice region 27 to strengthen the joint.
It is well known in the art that the load on a support pole increases in the downward direction of the pole. This is the reason why wooden poles have a larger diameter at the bottom and taper to a smaller top diameter.
The pole of the present invention is likewise made stronger at the bottom than at the top and this is achieved by interconnecting the braces 12 of the bottom channel members 11 and 11' in a pattern wherein the load is distributed at various transverse points across the channel members. This is achieved as shown in Figure 3B by alternating the disposition of adjacent interconnected braces 12. As herein shown, a brace 12' is connected diagonally between ~:35279 the two channel members 11 and 11' offset to one common side of the channel members. The next diagonal brace 12"
extends diagonally across opposed sides of the channel members while the next brace 12"' extends diagonally between the other common side of the channel members.
This pattern provides for a stronger po~e section by providing improved torsional resistance and preventing the side wall 17 from bowing out. Additionally, depending on the loading of the pole, an elongated reinforcing rib 31 may be formed in the outer wall 17 of the channel members 11 and 11' and located centrally thereof, whereby to strengthen the wall 17 and lower pole section.
The pattern of these braces 12 can vary along the length of the pole dependent on the number of pairs of channel members being interconnected end to end. For example, the upper sections of the pole may have all their braces interconnected along a common central plane 26 as illustrated in Figure 3A as this facilitates installation.
Also, the flanges 18 of the top channel members need not have a right angle inner lip 19 as shown in Figure 3B, as this section of the pole is subjected to less stress.
Some of the channel members 11 and 11' (those used in the top region of the pole) may also be provided with inter-spaced series of three holes 32 (see Figure 4) for attach-ment of the braces 12 in any desired abovementioned configuration. The space holes 32 may be used to attach auxiliary equipment to the pole, such as guy wires, trans-formers, platforms (not shown), etc.
It can be seen that with the structural pole construction just described that very few component parts ~:3S~
are provided and particularly very few fasteners are required to interconnect the opposed channel ~embers to one another through the diagonal bars. Also, with this construction there is no obstruction to opposed sides of the channel members and therefore power tools can be utilized from both sides of the channels to assemble the pole. Still further, auxiliary equipment, such as transformers, brackets, connectors, etc., may be easily attached to these poles without obstruction. As previously mentioned, the pole is easier and more quickly installed reducing the assembly cost thereof, and is easy to manipu-late and install in a suitable footing. Also, experiments have demonstrated that poles can be strengthened by the configuration of the serially interconnected braces which span the opposed channel members internally of the pole.
Because of the small surface area that the pole occupies, it is possible to assemble these in a plant and then transport many of these on a single flat-bed truck to the erection site. A still further advantage of this pole is that it is of a more pleasing aesthetic design which is an advantage when a pole line extends through a residential community.
It is within the ambit of the present invention to cover any obvious modifications of the example of the preferred embodiment described herein provided such modifications fall within the scope of the appended claims.
Claims (8)
1. A structural pole comprising a pair of upright metal channel members having an elongated flat outer wall with inwardly extending transverse structural flanges; said channel members being interconnectible in substantially parallel relationship, with their flanges extending inwardly, by a series of individual inner braces interconnected together and to said outer walls and spanning diagonally across said channel members and disposed in a predetermined pattern throughout the lengths of the channel members; each said diagonal brace being a straight elongated structural bar of angular cross-section having flat angulated connecting ends, a through bore in said connecting ends and securable to said channel members by overlapping said connecting ends of adjacent diagonal braces, and a fastener extending through said through bores of said overlapped connecting ends for interconnecting each said overlapping connecting ends with said flat outer wall of said channels whereby said structural pole is resistant to eccentric loads, said inner braces in at least a lower portion of said pole are interconnected diagonally across alternating sides of said channel members with an intermediate diagonal brace extending diagonally across opposed sides of the channel members and interconnected with the ends of the braces on alternating sides of said channel members.
2. A structural pole as claimed in claim 1 wherein said inner braces in a top portion of said pole are dis-posed along a common central plane of said opposed channel members and interconnected therewith.
3. A structural pole as claimed in claim 1 wherein said channel members are steel members, two or more of said pairs of interconnected channel members being inter-connected end-to-end by a telescopic connection joint at overlapped ends of said channel members.
4. A structural pole as claimed in claim 3 wherein a lower one of said pairs of interconnected channel members is provided with an elongated structural rib formed integral and disposed longitudinally in said flat outer wall.
5. A structural pole as claimed in claim 4 wherein said structural flanges of said lower pair of channel members also have a right angle inner lip exending inwardly and parallel to said flat outer wall.
6. A structural pole as claimed in claim 1 wherein said elongated structural bars are angle-iron bars having right angle walls of equal width.
7. A structural pole as claimed in claim 6 wherein said angle walls meet at an apex, said through bore in said flat angulated connecting ends being centrally aligned with said apex.
8. A structural pole as claimed in claim 1 wherein said structural interconnected channel members are secured in a concrete footing formed in the ground.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000470035A CA1235279A (en) | 1984-12-13 | 1984-12-13 | Pole structure with diagonal inner bracing |
| IN51/MAS/85A IN163205B (en) | 1984-12-13 | 1985-01-22 | |
| DE8585400676T DE3575445D1 (en) | 1984-12-13 | 1985-04-04 | MAST STRUCTURE WITH INNER DIAGONAL STRUT. |
| AT85400676T ATE49621T1 (en) | 1984-12-13 | 1985-04-04 | MAST STRUCTURE WITH INNER DIAGONAL BRACE. |
| EP85400676A EP0184947B1 (en) | 1984-12-13 | 1985-04-04 | Pole structure with diagonal inner bracing |
| ES1985296035U ES296035Y (en) | 1984-12-13 | 1985-04-30 | POST STRUCTURE FOR TRANSMISSION LINES. |
| OA58596A OA08021A (en) | 1984-12-13 | 1985-05-17 | Pole structure with diagonal inner bracing. |
| JP60120723A JPS61142266A (en) | 1984-12-13 | 1985-06-05 | Structural pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000470035A CA1235279A (en) | 1984-12-13 | 1984-12-13 | Pole structure with diagonal inner bracing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1235279A true CA1235279A (en) | 1988-04-19 |
Family
ID=4129374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000470035A Expired CA1235279A (en) | 1984-12-13 | 1984-12-13 | Pole structure with diagonal inner bracing |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0184947B1 (en) |
| JP (1) | JPS61142266A (en) |
| AT (1) | ATE49621T1 (en) |
| CA (1) | CA1235279A (en) |
| DE (1) | DE3575445D1 (en) |
| ES (1) | ES296035Y (en) |
| IN (1) | IN163205B (en) |
| OA (1) | OA08021A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2237589B (en) * | 1989-11-03 | 1994-03-02 | Stanley Ovington | Improvements in fence posts |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB378635A (en) * | 1931-08-05 | 1932-08-18 | Callenders Cable & Const Co | Improvements in poles for the support of electric transmission lines |
| US2075772A (en) * | 1935-08-09 | 1937-03-30 | United States Gypsum Co | Stud or joist |
| GB628868A (en) * | 1947-05-08 | 1949-09-06 | Calum Grant And Partners Ltd | Improvements in the construction of metal posts or masts |
| GB1073674A (en) * | 1966-01-14 | 1967-06-28 | Painter Brothers Ltd | Improvements in metal lattice structures |
| CA1073632A (en) * | 1978-06-05 | 1980-03-18 | Igor W. Geba | Semi-lattice pole |
-
1984
- 1984-12-13 CA CA000470035A patent/CA1235279A/en not_active Expired
-
1985
- 1985-01-22 IN IN51/MAS/85A patent/IN163205B/en unknown
- 1985-04-04 EP EP85400676A patent/EP0184947B1/en not_active Expired - Lifetime
- 1985-04-04 DE DE8585400676T patent/DE3575445D1/en not_active Expired - Lifetime
- 1985-04-04 AT AT85400676T patent/ATE49621T1/en not_active IP Right Cessation
- 1985-04-30 ES ES1985296035U patent/ES296035Y/en not_active Expired
- 1985-05-17 OA OA58596A patent/OA08021A/en unknown
- 1985-06-05 JP JP60120723A patent/JPS61142266A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE3575445D1 (en) | 1990-02-22 |
| EP0184947A3 (en) | 1987-04-29 |
| ES296035U (en) | 1987-07-16 |
| ES296035Y (en) | 1988-01-16 |
| OA08021A (en) | 1986-01-31 |
| EP0184947A2 (en) | 1986-06-18 |
| EP0184947B1 (en) | 1990-01-17 |
| ATE49621T1 (en) | 1990-02-15 |
| JPS61142266A (en) | 1986-06-30 |
| IN163205B (en) | 1988-08-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |