CA1145228A - Wire matrix - Google Patents
Wire matrixInfo
- Publication number
- CA1145228A CA1145228A CA000348155A CA348155A CA1145228A CA 1145228 A CA1145228 A CA 1145228A CA 000348155 A CA000348155 A CA 000348155A CA 348155 A CA348155 A CA 348155A CA 1145228 A CA1145228 A CA 1145228A
- Authority
- CA
- Canada
- Prior art keywords
- sheet
- wires
- transverse
- wire
- sheets
- 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
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0636—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts
- E04C5/064—Three-dimensional reinforcing mats composed of reinforcing elements laying in two or more parallel planes and connected by separate reinforcing parts the reinforcing elements in each plane being formed by, or forming a, mat of longitunal and transverse bars
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wire Processing (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE.
A three dimensional wire matrix structure is provided of low mass having outer wire sheets formed of longitudinal and transverse wires, the two sheets being interconnected and spaced from each other in generally mutually parallel relation by a third sheet, portions of the longitudinal wires of which are cranked at an obtuse angle. Attachment of the outer sheets to the cranked intermediate sheet is achieved by welding the transverse wires of the sheets to adjacent longitudinal wires of an adjoining sheet.
In two arrangements having the longitudinal wires of the outer sheets on the outside of the structure, a substantially symetrical structure is obtained. In a third embodiment an asymetrical structure is obtained, having the transverse wires of the outer sheets on the outside of the structure, and the cranked longi-tudinal wires of the inner sheet overlapping the longitudinal wires of one of the outer sheets, while being spaced from the other outer sheet by the transverse wires of the intermediate sheet by which attachment is made. Joining pieces also are pro-vided comprising sections of fabricated sheet having transverse wires extending from both sides thereof, and cranked downwardly in an "S"-shape to provide interconnection for two abutting sections of matrix over which or beneath which, the joining pieces lie in edge-overlapping relation. The step of gunniting or injecting concrete then completes the joining process.
A three dimensional wire matrix structure is provided of low mass having outer wire sheets formed of longitudinal and transverse wires, the two sheets being interconnected and spaced from each other in generally mutually parallel relation by a third sheet, portions of the longitudinal wires of which are cranked at an obtuse angle. Attachment of the outer sheets to the cranked intermediate sheet is achieved by welding the transverse wires of the sheets to adjacent longitudinal wires of an adjoining sheet.
In two arrangements having the longitudinal wires of the outer sheets on the outside of the structure, a substantially symetrical structure is obtained. In a third embodiment an asymetrical structure is obtained, having the transverse wires of the outer sheets on the outside of the structure, and the cranked longi-tudinal wires of the inner sheet overlapping the longitudinal wires of one of the outer sheets, while being spaced from the other outer sheet by the transverse wires of the intermediate sheet by which attachment is made. Joining pieces also are pro-vided comprising sections of fabricated sheet having transverse wires extending from both sides thereof, and cranked downwardly in an "S"-shape to provide interconnection for two abutting sections of matrix over which or beneath which, the joining pieces lie in edge-overlapping relation. The step of gunniting or injecting concrete then completes the joining process.
Description
ZB
~ACKGROUND OF THE I~ENTION
This invention is directed to a three dimensional wire matrix suitable for use as reinforcement and in particular to a matrix formed of wires constructed in sheet form.
The use of steel reinforcement in the form of bars for use with concrete is well known, wherein the mass of reinforce-ment would generally constitute a ~action of a percent of the mass of the complete structure. Another development has been that of ferro concrete wherein five to seven percent by weight of steel reinforcing~ire segments isadded randomly to the concrete, to provide substantially homogeneous reinforcement thereto.
Finally, the use of lightweight structural matri~
orovides a more efficient utilization of the steel, ~ith conse-quent reduction in the mass of steel required, the matrix being ~ositioned o~timally in the concrete ~;tructure to provide the most effective utilization o its tensile strength.
One such three-dimenslonal matrix arrangement is shown in United States Patent No.3,347,007 Oct~17th,1967, J.R.Hale, having a series of pyramid shaped units fabricated as a basic truss sandwiched between wire grids, the pyramids being fo~med by folding ~he stringer wires of a flat metal mesh at the juncture points or corners i.e. diagonally, to achieve a portion of an upstanding pyramid. Different combinations of wire structure are the~ built up from this basic unit, the fabrication of which is cumbersome, time consuming and costly.
A more recent construction utilizes a pair of outer mesh and inner mesh, the inner mesh being folded into a triangulated relation by bending of the longitudinal me h wires at acute angles to effecttriangles each having a series of transverse mesh wires arranged around the periphery thereof. The extreme rigidity of this arrangement is offset by the weight and the presence of a considerable mass of material in the form o~ transverse mesh wires ~ositioned relatively close to the m~dian axis of the structure, where it cannot develop its full strength. The surface strenyth is dependent solely on the strength of the welds. ~
S~228 SUMM~RY OF THE_INVEMTIOM.
In accordance with the present invention there is pro~
vided a three dimensional matrix of low specific weight, having the mass of the material concentrated primarily adjacent the outer sheet, whe~re it can develop its greatest strength, to provide efficient material utilization.
The invention further provides a three dimensional ~atri~ fabricated from three composite wire sheets, comprising a pair of outer sheets and i~ inner shee~, the inner sheet being ~rovided with a suitable three dimensional aspect by carrying out simple bending operations of the longitudinal wires of the sheet, the resulting trapezium sectioned sheet lending itself eminently to assembly and ~eldment with the wires of the outer wire sheets.
The invention may be practiced in a number of embodiments, depending upon the availability and relative costs of particular arrangements of wire sheet from which the two outer plies and the inner ~ly are formed. Also, the complexity of the weldment appa-ratus is a factor in selecting a particular embodiment.
In the first embodiment the standard wire sheets forming the outer ~lies of the matrix differ from the inner sheet which can use a lighter wire, and differs also in the pitch spacing of the transverse wires. With the two outer sheets spaced in sub-stantially mutually parallel arrangement having thetransverse wires thereof in mutually:staggered relation and positioned on the innermost sides of the sheets the intermediate sheet i9 provided in a pre-bent condition in which the longitudinal wires are alt-ernately cranked at an obtuse angle, having the transverse wires of the intermediate sheet located at the spaced apart uncranked ~ortions of the longitudinal wires. In the case of one of the ou~
side sheets the transverse wires of the i~ner sheet are arranged to lie alongside an adjacent transverse wire of the ôuter sheet, while in the case of the other outside qheet selected ~ of the outside sheet transverse wires abut the outer surfaces of the un-cranked portlons of the longitudinal wires of the inner sheet,for weldment thereto, In the second embodiment the starting sheets comprise outer sheets having -the longitudinal wires thereof outermost.
One of the outer sheets has the transverse wires thereof spaced two wire pitch intervals apart, the other outer sheet having regularly spaced transverse wires. The intermediate sheet having suitably cranked longitudinal wires, has ths transverse wires thereof positioned on one side of the longi-tudinal wires thereof, at a spacing such that the transverse wires occupy the vacant pitch of the first one of the outer sheets so as to provide`a uniform and symetrical structure of minimal weight.
A third embodiment is contemplated having the trans-verse wires of the two outer sheets in outward facing relation, the intermedia-te sheet having alternating uncranked portions of the longitudinal wires arranged adjacent the longitudinal wires of one of the outer sheets, for transverse weldmen-t thereto.
the lateral wires of the in-termediate shee-t being positioned in outward contacting relation agains-t the inner surfaces of -the longitudinal wires of the other sheets.
The intermediate sheet longitudinal wires include cranked portions interconnecting the uncranked portions thereof, in each of the foregoing embodiments. Thus in the first two embodiments the lateral wires of the outer sheets are arranged on the innermost sides of the sheets in adjacent positioned re-lation with the adjoining transverse wire of the inner sheet while in the case of the third embodiment the outer sheet la-teral wires are arranged on the outermost surfaces of the outer sheets in a selected position, relative to the adjacent uncranked portions of -the inner sheet.
In the Figure 1 and Figure 3 ~mbodiments the s-tag-gered relation of the transverse wires of the outer plies facilitates welding of the assembled s-tructure.
BRIEF DESCRIPTION OF THE DRAWINGS.
Certain embodiments of the invention are described, Z2~
reference being made to the drawings, wherein:
Figure 1 is an edge view of a portion of a three dimensional wire structure of a first embodiment of tha invention;
Eigure 2 is a like view of a second embodiment of the invention;
Figure 3 is a like view oE a third embodiment of the invention, and Eigure 4 is a general view sh~wing a pair of c~nnector strips for use in connecting matrix.
DETAIhED DE5CRIPTIO~ OF PREFERRED EMBODIMENTS OF THE INVENTION
Referring first to Figure 1, the arrangement 10 c~mpris~
a lower outer sheet 12, an upper outer sheet 14 and an intermsdia~
sheet 16.
The lower sheet 12 has longitudinal wires 17 and trans-verse wires l9 on the innermost ~ace of the sheet 12. Co.rrespon-dlngly the upper sheet 14 has longitudinal wires 21 and transverse wires 23 on the innermost ~ace of the! sheet.
~ he inner sheet 16 has longitudinal wires 26 having undeformed ~ortions 27, 29 in alternating spaced apart relation, joined by cranked portions 31,33 of the longitudinal wire 26 il~
lustrated as being set at about 45 i e. having an obtuse included angle "A" of about 135. The transverse wires 35 of the inner .
sheet 16 are all located on the same side of the sheet, the lower side as illustrated. The centre wire 35 illustrated abutts the longitudinal wire 17 of the lower sheet 12, and also abutts a transverse wire 19 of the lower sheet 12. The arrangement 10 of Figure 1 is shaped and the elements arranged such as to give suf-ficient clearance for the penetration of spot welding electrodes ~ (shown in phantom) in welding relation through the structure 10, by off-setting the upper sheet 14 in staggered relation to the lower sheet l2 by a half-pitch.
It will be noted that the outer sheets 12, 14 are pro-vided with uniformly spa~ed lateral wires, 19 and 23 respectively, ~rranged in mutually staggered relation.
~5~2~
Turning to the Figure 2 embodiment -the lower sheet 42 has a full complement of transverse wires 45 arranged at equal intervals while the upper sheet 44 is characterized by pairs of transverse wires 47, each pair having a double pitch i~terval therebetween into which the transverse wires 53 of the inner sheet 46 are positioned in generally centered relation. The pitch intervals of the transverse wires 53 of the inner sheet are pre-~termined to achieve the desired spacing upon bending the inner sheet 46 In this arrangement the use of oppositely located welding arcuate contacts 56, 58 is comtemplated.
In the Figure 3 embodi.ment the outer ~heets 82, 84 of t~
assembly 80 have their transverse wires 85,87 located outwardly relative to the structure, wherein it is comtemplated that relative ~ositioning is not at all critical, for purposes o ~ffecting welds whereas, if desired particular positi.oning can be readily provided.
From the foregoing it will be seen that various wire structures may be provided, some being precisely symetrical as in the Figure 2 embodiment and some being asymetrical, with rela-tion to the neutral axis of the respe~ctive structure.
It has been found that using mesh structure for the centre sheet with ~ne m.m. wi~e (0.040 inches diameter) having the logitudinal wires spaced at about l"centres and with transver~e wires at a pitch of 2/3 inches, with outer sheets using wire o~
62 thousands of an inch diameter that a structural matrix sheet having a panel weight of about 1 lb. per square foot and being ca~able ~f sustaining the weight of a ~an wearing "paddles" on his feet is provided. This structure can be laid over u~prepared surfaces, such as hardcore, old cement or wooden decking etc., and gunnited with a cement having fine aggregate, with excellent structural results.
By controlling the respective proportions, particularly of the intermediate sheet, structures varying over a significant range of thicknesses can be provided that are suited to mass production, wherein the predominant mass of the steel is at or ~5~:8 adjacent the structure outer surfacesc for optimum strength.
Referring to Figure 4, a pair of connectors 90 are shown, being about 3 inches wide and haviny in-~urned "S" shaped hook portions 92 to engage the wires of the upper and lower sheets of the matrix, to hold adjoining sections in mutually secured relation, prior to gunniting or concreting in-situ.
One of the particular advantages afforded by the subject small mesh size is that the generation of cracks in the cement oE
a poured or gunnited structure, under working loads, is held to small surface cracks in close pro~imity, thereby enhancing the integrity of the structure.
~ACKGROUND OF THE I~ENTION
This invention is directed to a three dimensional wire matrix suitable for use as reinforcement and in particular to a matrix formed of wires constructed in sheet form.
The use of steel reinforcement in the form of bars for use with concrete is well known, wherein the mass of reinforce-ment would generally constitute a ~action of a percent of the mass of the complete structure. Another development has been that of ferro concrete wherein five to seven percent by weight of steel reinforcing~ire segments isadded randomly to the concrete, to provide substantially homogeneous reinforcement thereto.
Finally, the use of lightweight structural matri~
orovides a more efficient utilization of the steel, ~ith conse-quent reduction in the mass of steel required, the matrix being ~ositioned o~timally in the concrete ~;tructure to provide the most effective utilization o its tensile strength.
One such three-dimenslonal matrix arrangement is shown in United States Patent No.3,347,007 Oct~17th,1967, J.R.Hale, having a series of pyramid shaped units fabricated as a basic truss sandwiched between wire grids, the pyramids being fo~med by folding ~he stringer wires of a flat metal mesh at the juncture points or corners i.e. diagonally, to achieve a portion of an upstanding pyramid. Different combinations of wire structure are the~ built up from this basic unit, the fabrication of which is cumbersome, time consuming and costly.
A more recent construction utilizes a pair of outer mesh and inner mesh, the inner mesh being folded into a triangulated relation by bending of the longitudinal me h wires at acute angles to effecttriangles each having a series of transverse mesh wires arranged around the periphery thereof. The extreme rigidity of this arrangement is offset by the weight and the presence of a considerable mass of material in the form o~ transverse mesh wires ~ositioned relatively close to the m~dian axis of the structure, where it cannot develop its full strength. The surface strenyth is dependent solely on the strength of the welds. ~
S~228 SUMM~RY OF THE_INVEMTIOM.
In accordance with the present invention there is pro~
vided a three dimensional matrix of low specific weight, having the mass of the material concentrated primarily adjacent the outer sheet, whe~re it can develop its greatest strength, to provide efficient material utilization.
The invention further provides a three dimensional ~atri~ fabricated from three composite wire sheets, comprising a pair of outer sheets and i~ inner shee~, the inner sheet being ~rovided with a suitable three dimensional aspect by carrying out simple bending operations of the longitudinal wires of the sheet, the resulting trapezium sectioned sheet lending itself eminently to assembly and ~eldment with the wires of the outer wire sheets.
The invention may be practiced in a number of embodiments, depending upon the availability and relative costs of particular arrangements of wire sheet from which the two outer plies and the inner ~ly are formed. Also, the complexity of the weldment appa-ratus is a factor in selecting a particular embodiment.
In the first embodiment the standard wire sheets forming the outer ~lies of the matrix differ from the inner sheet which can use a lighter wire, and differs also in the pitch spacing of the transverse wires. With the two outer sheets spaced in sub-stantially mutually parallel arrangement having thetransverse wires thereof in mutually:staggered relation and positioned on the innermost sides of the sheets the intermediate sheet i9 provided in a pre-bent condition in which the longitudinal wires are alt-ernately cranked at an obtuse angle, having the transverse wires of the intermediate sheet located at the spaced apart uncranked ~ortions of the longitudinal wires. In the case of one of the ou~
side sheets the transverse wires of the i~ner sheet are arranged to lie alongside an adjacent transverse wire of the ôuter sheet, while in the case of the other outside qheet selected ~ of the outside sheet transverse wires abut the outer surfaces of the un-cranked portlons of the longitudinal wires of the inner sheet,for weldment thereto, In the second embodiment the starting sheets comprise outer sheets having -the longitudinal wires thereof outermost.
One of the outer sheets has the transverse wires thereof spaced two wire pitch intervals apart, the other outer sheet having regularly spaced transverse wires. The intermediate sheet having suitably cranked longitudinal wires, has ths transverse wires thereof positioned on one side of the longi-tudinal wires thereof, at a spacing such that the transverse wires occupy the vacant pitch of the first one of the outer sheets so as to provide`a uniform and symetrical structure of minimal weight.
A third embodiment is contemplated having the trans-verse wires of the two outer sheets in outward facing relation, the intermedia-te sheet having alternating uncranked portions of the longitudinal wires arranged adjacent the longitudinal wires of one of the outer sheets, for transverse weldmen-t thereto.
the lateral wires of the in-termediate shee-t being positioned in outward contacting relation agains-t the inner surfaces of -the longitudinal wires of the other sheets.
The intermediate sheet longitudinal wires include cranked portions interconnecting the uncranked portions thereof, in each of the foregoing embodiments. Thus in the first two embodiments the lateral wires of the outer sheets are arranged on the innermost sides of the sheets in adjacent positioned re-lation with the adjoining transverse wire of the inner sheet while in the case of the third embodiment the outer sheet la-teral wires are arranged on the outermost surfaces of the outer sheets in a selected position, relative to the adjacent uncranked portions of -the inner sheet.
In the Figure 1 and Figure 3 ~mbodiments the s-tag-gered relation of the transverse wires of the outer plies facilitates welding of the assembled s-tructure.
BRIEF DESCRIPTION OF THE DRAWINGS.
Certain embodiments of the invention are described, Z2~
reference being made to the drawings, wherein:
Figure 1 is an edge view of a portion of a three dimensional wire structure of a first embodiment of tha invention;
Eigure 2 is a like view of a second embodiment of the invention;
Figure 3 is a like view oE a third embodiment of the invention, and Eigure 4 is a general view sh~wing a pair of c~nnector strips for use in connecting matrix.
DETAIhED DE5CRIPTIO~ OF PREFERRED EMBODIMENTS OF THE INVENTION
Referring first to Figure 1, the arrangement 10 c~mpris~
a lower outer sheet 12, an upper outer sheet 14 and an intermsdia~
sheet 16.
The lower sheet 12 has longitudinal wires 17 and trans-verse wires l9 on the innermost ~ace of the sheet 12. Co.rrespon-dlngly the upper sheet 14 has longitudinal wires 21 and transverse wires 23 on the innermost ~ace of the! sheet.
~ he inner sheet 16 has longitudinal wires 26 having undeformed ~ortions 27, 29 in alternating spaced apart relation, joined by cranked portions 31,33 of the longitudinal wire 26 il~
lustrated as being set at about 45 i e. having an obtuse included angle "A" of about 135. The transverse wires 35 of the inner .
sheet 16 are all located on the same side of the sheet, the lower side as illustrated. The centre wire 35 illustrated abutts the longitudinal wire 17 of the lower sheet 12, and also abutts a transverse wire 19 of the lower sheet 12. The arrangement 10 of Figure 1 is shaped and the elements arranged such as to give suf-ficient clearance for the penetration of spot welding electrodes ~ (shown in phantom) in welding relation through the structure 10, by off-setting the upper sheet 14 in staggered relation to the lower sheet l2 by a half-pitch.
It will be noted that the outer sheets 12, 14 are pro-vided with uniformly spa~ed lateral wires, 19 and 23 respectively, ~rranged in mutually staggered relation.
~5~2~
Turning to the Figure 2 embodiment -the lower sheet 42 has a full complement of transverse wires 45 arranged at equal intervals while the upper sheet 44 is characterized by pairs of transverse wires 47, each pair having a double pitch i~terval therebetween into which the transverse wires 53 of the inner sheet 46 are positioned in generally centered relation. The pitch intervals of the transverse wires 53 of the inner sheet are pre-~termined to achieve the desired spacing upon bending the inner sheet 46 In this arrangement the use of oppositely located welding arcuate contacts 56, 58 is comtemplated.
In the Figure 3 embodi.ment the outer ~heets 82, 84 of t~
assembly 80 have their transverse wires 85,87 located outwardly relative to the structure, wherein it is comtemplated that relative ~ositioning is not at all critical, for purposes o ~ffecting welds whereas, if desired particular positi.oning can be readily provided.
From the foregoing it will be seen that various wire structures may be provided, some being precisely symetrical as in the Figure 2 embodiment and some being asymetrical, with rela-tion to the neutral axis of the respe~ctive structure.
It has been found that using mesh structure for the centre sheet with ~ne m.m. wi~e (0.040 inches diameter) having the logitudinal wires spaced at about l"centres and with transver~e wires at a pitch of 2/3 inches, with outer sheets using wire o~
62 thousands of an inch diameter that a structural matrix sheet having a panel weight of about 1 lb. per square foot and being ca~able ~f sustaining the weight of a ~an wearing "paddles" on his feet is provided. This structure can be laid over u~prepared surfaces, such as hardcore, old cement or wooden decking etc., and gunnited with a cement having fine aggregate, with excellent structural results.
By controlling the respective proportions, particularly of the intermediate sheet, structures varying over a significant range of thicknesses can be provided that are suited to mass production, wherein the predominant mass of the steel is at or ~5~:8 adjacent the structure outer surfacesc for optimum strength.
Referring to Figure 4, a pair of connectors 90 are shown, being about 3 inches wide and haviny in-~urned "S" shaped hook portions 92 to engage the wires of the upper and lower sheets of the matrix, to hold adjoining sections in mutually secured relation, prior to gunniting or concreting in-situ.
One of the particular advantages afforded by the subject small mesh size is that the generation of cracks in the cement oE
a poured or gunnited structure, under working loads, is held to small surface cracks in close pro~imity, thereby enhancing the integrity of the structure.
Claims (8)
1 A unitary three dimensional wire structure having a first outer sheet comprising a plurality of longitudinal wires and a plurality of transverse wires rectangularly co-ordinated with and secured to the longitudinal wires at their points of intersection; a second similarly constructed,similarly oriented outer sheet spaced in substantially parallell relation from said first sheet, and a third intermediate sheet having a rectangu-larly coordinated wire construction, with a set of transverse wires and a set of longtudinal wires, one said set of wires being substantially undeformed, the other said set of wires being de-formed, having first portions of said other set extending parallell with said first and second sheets and secured thereto at respective points of contact and second portions of said other set interconnecting said first portions of said other set in alternating obtuse included-angle relation therewith and extending in inclined relation between said first and said second sheets to maintain said first and second sheets in said spaced apart substantially parallel relation.
2. The wire structure of Claim 1, wherein said set of transverse wires is substantially undeformed and said longi-tudinal set of wires is deformed.
3. The wire structure of Claim 1 or Claim 2 wherein said transverse wires of siad third sheet are located solely on one side of said third sheet.
4. The wire structure of Claim 2 wherein said transverse wires of said first and said second sheets are on the sides of said sheets adjacent said third sheet.
5. The wire structure of Claim 1 or Claim 2 wherein said third sheet inclined portions exclude said transverse wires
6. The wire structure of Claim 4 wherein said transverse wires of one said first and second sheets are arranged regularly spaced apart having a spacing interval between each wire to receive a said transverse wire of said third sheet in interposed relation therebetween whereby the spacing between the transverse wires is substantially uniform.
7. The wire structure of Claim 1, said third sheet having said transverse wires positioned on the side thereof facing one said outer sheet, each said longitudinal wire first portion adjacent said one outer sheet having a transverse wire in sub-stantialy adjoining relation with a transverse wire of said one outer sheet.
8. The wire structure of Claim 2 wherein said transverse wires of said third sheet are located solely on the side of said third sheet adjoining said first sheet, alternate ones of said first portions of said deformed longitudinal wires adjacent said first outer sheet each having a transverse wire secured to the first sheet in substantially underlying relation with a trans-verse wire of the first sheet and having said longitudinal wires of said first sheet interposed between said transverse wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000348155A CA1145228A (en) | 1980-03-21 | 1980-03-21 | Wire matrix |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000348155A CA1145228A (en) | 1980-03-21 | 1980-03-21 | Wire matrix |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1145228A true CA1145228A (en) | 1983-04-26 |
Family
ID=4116523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000348155A Expired CA1145228A (en) | 1980-03-21 | 1980-03-21 | Wire matrix |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1145228A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0127582A2 (en) * | 1983-05-27 | 1984-12-05 | Jean-J. Beaumond | Tridimensional metal skeleton for structural panels |
| EP4092215A1 (en) | 2021-05-21 | 2022-11-23 | FEHR Groupe | Frame for connection of a wall with built-in formwork |
-
1980
- 1980-03-21 CA CA000348155A patent/CA1145228A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0127582A2 (en) * | 1983-05-27 | 1984-12-05 | Jean-J. Beaumond | Tridimensional metal skeleton for structural panels |
| EP0127582A3 (en) * | 1983-05-27 | 1985-06-19 | Jean-J. Beaumond | Tridimensional metal skeleton for structural panels |
| EP4092215A1 (en) | 2021-05-21 | 2022-11-23 | FEHR Groupe | Frame for connection of a wall with built-in formwork |
| EP4343079A2 (en) | 2021-05-21 | 2024-03-27 | FEHR Groupe | Wall connection fitting with integrated formwork |
| EP4343079A3 (en) * | 2021-05-21 | 2024-05-15 | FEHR Groupe | Wall connection fitting with integrated formwork |
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| MKEX | Expiry |