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US20070163200A1 - Floor deck member for scaffolding - Google Patents

Floor deck member for scaffolding Download PDF

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Publication number
US20070163200A1
US20070163200A1 US10/578,954 US57895404A US2007163200A1 US 20070163200 A1 US20070163200 A1 US 20070163200A1 US 57895404 A US57895404 A US 57895404A US 2007163200 A1 US2007163200 A1 US 2007163200A1
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US
United States
Prior art keywords
floor deck
deck member
ribs
scaffolding
profiled members
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.)
Abandoned
Application number
US10/578,954
Inventor
Rolf Heggland
Frank Stengrimsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RH Products International AS
Original Assignee
RH Products International AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by RH Products International AS filed Critical RH Products International AS
Assigned to RH PRODUCTS INTERNATIONAL AS reassignment RH PRODUCTS INTERNATIONAL AS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HEGGLAND, ROLF, STENGRIMSEN, FRANK
Publication of US20070163200A1 publication Critical patent/US20070163200A1/en
Abandoned legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/153—Platforms made of plastics, with or without reinforcement

Definitions

  • the present invention relates to a floor deck member for scaffolding, wherein the floor deck member at each end has a mounting area designed to rest on a scaffold beam, wherein the floor deck member has a plurality of elongate reinforcing profiled members which are embedded in longitudinal ribs on the underside of the floor deck member, wherein between adjacent ribs there are arranged support ribs, and wherein a walk surface, the ribs and the support ribs of the floor deck member are unitarily formed of a composite plastic material.
  • the object of the present invention is to remedy, in a simple manner, the disadvantages known hitherto in connection with such floor deck members for scaffolding, and according to the present invention, the invention is characterised in that respective end portions of said reinforcing profiled members form said mounting area when bearing against respective ones of the opposing scaffold beams, and that supporting pieces are arranged at each end of the floor deck member and designed to limit movement of the floor deck member relative to opposing scaffold beams when these support the floor deck member via the mounting area.
  • the said plastic material is composed of a polyolefin material, for example, copolymer polypropylene with an added mineral material, the plastic material also having an expansion agent added thereto during moulding.
  • the proportion of the mineral material is 10-40%, preferably 20%, and the mineral material may advantageously be dolomite.
  • the expansion agent may be added in an amount of 1-5% by weight, preferably 2% by weight.
  • the reinforcing profiled members in the floor deck member are capable of being joined to reinforcing steel sections in a longitudinally intermediate or adjacent floor deck member.
  • the floor deck member may be capable of being split into at least two parts for insertion of one or more extension pieces which have a plurality of elongate reinforcing profiled members that are embedded in longitudinal ribs on the underside of the extension piece, and where a walk surface, the ribs and any support ribs of the extension piece are unitarily made of said composite material.
  • the extension piece thus forms a mechanical connection with an adjacent floor deck member part when joined between the reinforcing profiled members of the floor deck member part and the reinforcing profiled members of the extension piece.
  • FIG. 1 is a perspective top view of a floor deck member according to the invention.
  • FIG. 2 is a bottom view of the floor deck member according to the invention.
  • FIG. 3 is a bottom view of a section of the floor deck member.
  • FIG. 4 shows the joining principle for a floor deck member according to the invention.
  • FIG. 5 shows an application of the floor deck member for use in a scaffold.
  • FIG. 6 is a top perspective view of a modified embodiment of a floor deck member according to the invention.
  • FIG. 7 is a bottom view of the floor deck member shown in FIG. 6 .
  • FIG. 8 is an exploded view of a section of FIG. 7 .
  • FIG. 9 is a view of the underside of the floor deck member shown in FIGS. 6 and 7 .
  • FIG. 1 shows a floor deck member 1 for scaffolding 24 ( FIG. 5 ).
  • the floor deck member has at each end a mounting area 2 , 3 which is designed to rest on a scaffold beam, as indicated in FIG. 5 .
  • the mounting areas 2 , 3 have respective, downwardly projecting projecting pieces 2 ′, 3 ′ at each end so as to be able to limit movement of the floor deck member 1 relative to the opposing scaffold beams 25 , 26 when these beams support the floor deck member, as shown in FIG. 5 .
  • the floor deck member has a plurality of elongate reinforcing profiled members 4 , 5 , 6 , for example, tubes having a circular cross-section, which are embedded in longitudinal ribs 7 , 8 , 9 on the underside 1 ′ of the floor deck member, as shown in FIG. 2 .
  • a plurality of respective support ribs 10 , 11 are arranged between the adjacent, longitudinal ribs 7 , 8 , 9 .
  • a walk surface 12 , the ribs 7 - 9 and the support ribs 10 , 11 of the floor deck member are, according to the invention, unitarily made of a composite plastic material.
  • Respective end portions 4 ′, 5 ′, 6 ′ of the said profiled members 4 , 5 , 6 will primarily form the mounting area 2 , 3 of the floor deck member when bearing against a top edge of respective ones of the opposing scaffold beams 25 , 26 .
  • the supporting pieces 2 ′, 3 ′ are secured, for example, by welding or riveting 30 - 32 to the respective profiled members 4 , 5 , 6 .
  • the plastic material of the floor deck member is advantageously composed of a polyolefin material, for example, copolymer polypropylene.
  • the plastic material also advantageously has added thereto a mineral material, and also has an expansion agent added thereto during moulding.
  • the proportion of the mineral material in the plastic material is preferably 10-40%, most preferably 20%.
  • the mineral material added to the plastic material is advantageously dolomite, and said expansion agent is added to the plastic material in an amount of 1-5% by weight, preferably 2% by weight.
  • FIG. 4 shows a floor deck member that has been split into two parts 15 , 16 and has reinforcing profiled members 4 ′′, 5 ′′, 6 ′′. These reinforcing profiled members 4 ′′, 5 ′′, 6 ′′ are arranged to be capable of being joined to reinforcing profiled members in longitudinal direction 15 intermediate or adjacent floor deck member 13 , where the reinforcing profiled members of the floor deck member 13 are indicated by respective reference numerals 17 , 18 , 19 . If the floor deck member 13 is to be inserted between the floor deck member parts 15 , 16 , this can be done as indicated by the arrows A and B. If joining is perhaps desirable from an end portion of the members 15 , 16 , such as at a scaffold beam, this can be done at the areas A′ or B′ using the respective portions A or B of the member 13 .
  • the elongate reinforcing profiled members 17 , 18 , 19 are embedded in longitudinal ribs 20 , 21 , 22 on the underside of the extension piece 13 .
  • the walk surface 23 , the ribs 20 - 22 and the optional support ribs 24 , 25 of the extension piece are unitarily made of the aforementioned composite material.
  • the extension piece 13 will thus be able to form a mechanical connection with adjacent floor deck member part 1 ; 15 ; 16 , joining the reinforcing profiled members 4 ′′, 5 ′′, 6 ′′ of the floor deck member part to the reinforcing profiled members 17 - 19 of the extension piece.
  • FIG. 5 it is shown how the scaffolding can be erected initially by using floor deck member 1 , scaffolding poles 28 , 29 , scaffolding crosspieces 27 and longitudinal supporting beams 25 , 26 that support the floor deck member.
  • FIGS. 6-9 show a scaffold floor deck member 30 , which at each end has a mounting area 33 , 34 with respective downward projecting supporting piece 33 ′, 34 ′ to limit movement of the floor deck member 30 relative to the opposing scaffold beams 25 , 26 when these beams support the floor deck member in the same way as shown in FIG. 5 .
  • the floor deck member 30 has a plurality of elongate reinforcing profiled members 37 , 38 , 39 , for example, tubes having a circular cross-section, which are embedded in longitudinal ribs 35 , 35 ′, 35 ′′ on the underside 30 ′ of the floor deck member 30 .
  • a plurality of respective support ribs 36 , 36 ′ are arranged between the adjacent, longitudinal ribs 35 , 35 ′, 35 ′′.
  • the walk surface 31 of the floor deck member is made having protuberances 32 ; and the ribs 35 , 35 ′, 35 ′′ and the support ribs 36 , 36 ′ on the underside are, according to the invention, unitarily made of a composite plastic material.
  • the supporting pieces 33 ′, 34 ′ are secured, for example, by adhesive bonding or riveting to the respective profiled members 37 , 38 , 39 when the profiled members have been inserted into the respective holes 37 ′′, 38 ′′, 39 ′′ in such a supporting piece.
  • the supporting pieces 33 ′, 34 ′ are advantageously formed of a plastic material or of metal.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)
  • Floor Finish (AREA)
  • Surgical Instruments (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Road Signs Or Road Markings (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

A floor deck member (1; 30) for scaffolding (24), wherein the floor deck member at each end has a mounting area (2, 3; 33, 34) designed to rest on a scaffold beam (25; 26), and downwardly projecting supporting pieces (2′, 3′; 33′, 34′) at each end to limit movement of the floor deck member (1; 30) relative to opposing scaffold beams (25, 26) when these support the floor deck member. The floor deck member has a plurality of elongate reinforcing profiled members (4, 5, 6; 37, 38, 39) which are embedded in longitudinal ribs (7, 8, 9; 35, 35′, 35″) on the underside of the floor deck member, wherein support ribs (10, 11; 36, 36′) are arranged between adjacent ribs (7, 8, 9; 35, 35′, 35″). A walk surface (12, 31, 32), the ribs (7, 8, 9: 35, 35′, 35″) and the support ribs (10, 11; 36, 36′) are unitarily made of a composite plastic material, the respective end portions (4′, 5′, 6′; 37′, 38′, 39′) of said profiled members (4, 5, 6; 37, 38, 39′) forming said mounting area when bearing against respective ones of the opposing scaffold beams (25; 26).

Description

  • The present invention relates to a floor deck member for scaffolding, wherein the floor deck member at each end has a mounting area designed to rest on a scaffold beam, wherein the floor deck member has a plurality of elongate reinforcing profiled members which are embedded in longitudinal ribs on the underside of the floor deck member, wherein between adjacent ribs there are arranged support ribs, and wherein a walk surface, the ribs and the support ribs of the floor deck member are unitarily formed of a composite plastic material.
  • It is already known to mount floor deck members of this type on scaffold beams in that they rest on a top edge of the longitudinal scaffold beams and often extend a little way beyond the outward facing side of these beams. In a solution of this kind, it is usually necessary to secure the floor deck members so that they do not slide relative to the beams, and this may optionally be done using hooks or the like that project from the underside of the floor deck members. This means in turn that when such floor deck members are stacked for transport, securing devices of this kind will take up a considerable amount of storage space, whilst the floor deck members during mounting tend to become hooked onto each other.
  • The object of the present invention is to remedy, in a simple manner, the disadvantages known hitherto in connection with such floor deck members for scaffolding, and according to the present invention, the invention is characterised in that respective end portions of said reinforcing profiled members form said mounting area when bearing against respective ones of the opposing scaffold beams, and that supporting pieces are arranged at each end of the floor deck member and designed to limit movement of the floor deck member relative to opposing scaffold beams when these support the floor deck member via the mounting area.
  • Advantageously, the said plastic material is composed of a polyolefin material, for example, copolymer polypropylene with an added mineral material, the plastic material also having an expansion agent added thereto during moulding. The proportion of the mineral material is 10-40%, preferably 20%, and the mineral material may advantageously be dolomite. The expansion agent may be added in an amount of 1-5% by weight, preferably 2% by weight.
  • According to further embodiments of the floor deck member, the reinforcing profiled members in the floor deck member are capable of being joined to reinforcing steel sections in a longitudinally intermediate or adjacent floor deck member.
  • According to yet another embodiment, the floor deck member may be capable of being split into at least two parts for insertion of one or more extension pieces which have a plurality of elongate reinforcing profiled members that are embedded in longitudinal ribs on the underside of the extension piece, and where a walk surface, the ribs and any support ribs of the extension piece are unitarily made of said composite material. The extension piece thus forms a mechanical connection with an adjacent floor deck member part when joined between the reinforcing profiled members of the floor deck member part and the reinforcing profiled members of the extension piece.
  • The invention will now be explained in more detail with reference to the attached drawings which show typical non-limiting exemplary embodiments of the invention.
  • FIG. 1 is a perspective top view of a floor deck member according to the invention.
  • FIG. 2 is a bottom view of the floor deck member according to the invention.
  • FIG. 3 is a bottom view of a section of the floor deck member.
  • FIG. 4 shows the joining principle for a floor deck member according to the invention.
  • FIG. 5 shows an application of the floor deck member for use in a scaffold.
  • FIG. 6 is a top perspective view of a modified embodiment of a floor deck member according to the invention.
  • FIG. 7 is a bottom view of the floor deck member shown in FIG. 6.
  • FIG. 8 is an exploded view of a section of FIG. 7.
  • FIG. 9 is a view of the underside of the floor deck member shown in FIGS. 6 and 7.
  • FIG. 1 shows a floor deck member 1 for scaffolding 24 (FIG. 5). The floor deck member has at each end a mounting area 2, 3 which is designed to rest on a scaffold beam, as indicated in FIG. 5. The mounting areas 2, 3 have respective, downwardly projecting projecting pieces 2′, 3′ at each end so as to be able to limit movement of the floor deck member 1 relative to the opposing scaffold beams 25, 26 when these beams support the floor deck member, as shown in FIG. 5. As shown in both FIG. 1 and FIG. 2, the floor deck member has a plurality of elongate reinforcing profiled members 4, 5, 6, for example, tubes having a circular cross-section, which are embedded in longitudinal ribs 7, 8, 9 on the underside 1′ of the floor deck member, as shown in FIG. 2. Advantageously, a plurality of respective support ribs 10, 11 are arranged between the adjacent, longitudinal ribs 7, 8, 9.
  • A walk surface 12, the ribs 7-9 and the support ribs 10, 11 of the floor deck member are, according to the invention, unitarily made of a composite plastic material. Respective end portions 4′, 5′, 6′ of the said profiled members 4, 5, 6 will primarily form the mounting area 2, 3 of the floor deck member when bearing against a top edge of respective ones of the opposing scaffold beams 25, 26. The supporting pieces 2′, 3′ are secured, for example, by welding or riveting 30-32 to the respective profiled members 4, 5, 6.
  • The plastic material of the floor deck member is advantageously composed of a polyolefin material, for example, copolymer polypropylene. The plastic material also advantageously has added thereto a mineral material, and also has an expansion agent added thereto during moulding. The proportion of the mineral material in the plastic material is preferably 10-40%, most preferably 20%.
  • The mineral material added to the plastic material is advantageously dolomite, and said expansion agent is added to the plastic material in an amount of 1-5% by weight, preferably 2% by weight.
  • It will be an advantage that floor deck members can be joined to increase their length. This is indicated in FIG. 4 which shows a floor deck member that has been split into two parts 15, 16 and has reinforcing profiled members 4″, 5″, 6″. These reinforcing profiled members 4″, 5″, 6″ are arranged to be capable of being joined to reinforcing profiled members in longitudinal direction 15 intermediate or adjacent floor deck member 13, where the reinforcing profiled members of the floor deck member 13 are indicated by respective reference numerals 17, 18, 19. If the floor deck member 13 is to be inserted between the floor deck member parts 15, 16, this can be done as indicated by the arrows A and B. If joining is perhaps desirable from an end portion of the members 15, 16, such as at a scaffold beam, this can be done at the areas A′ or B′ using the respective portions A or B of the member 13.
  • The elongate reinforcing profiled members 17, 18, 19 are embedded in longitudinal ribs 20, 21, 22 on the underside of the extension piece 13. Like the floor deck member 1, the walk surface 23, the ribs 20-22 and the optional support ribs 24, 25 of the extension piece are unitarily made of the aforementioned composite material. The extension piece 13 will thus be able to form a mechanical connection with adjacent floor deck member part 1; 15; 16, joining the reinforcing profiled members 4″, 5″, 6″ of the floor deck member part to the reinforcing profiled members 17-19 of the extension piece.
  • In FIG. 5 it is shown how the scaffolding can be erected initially by using floor deck member 1, scaffolding poles 28, 29, scaffolding crosspieces 27 and longitudinal supporting beams 25, 26 that support the floor deck member.
  • FIGS. 6-9 show a scaffold floor deck member 30, which at each end has a mounting area 33, 34 with respective downward projecting supporting piece 33′, 34′ to limit movement of the floor deck member 30 relative to the opposing scaffold beams 25, 26 when these beams support the floor deck member in the same way as shown in FIG. 5. As shown in both FIG. 8 and FIG. 9, the floor deck member 30 has a plurality of elongate reinforcing profiled members 37, 38, 39, for example, tubes having a circular cross-section, which are embedded in longitudinal ribs 35, 35′, 35″ on the underside 30′ of the floor deck member 30. Advantageously, a plurality of respective support ribs 36, 36′ are arranged between the adjacent, longitudinal ribs 35, 35′, 35″.
  • The walk surface 31 of the floor deck member is made having protuberances 32; and the ribs 35, 35′, 35″ and the support ribs 36, 36′ on the underside are, according to the invention, unitarily made of a composite plastic material. The supporting pieces 33′, 34′ are secured, for example, by adhesive bonding or riveting to the respective profiled members 37, 38, 39 when the profiled members have been inserted into the respective holes 37″, 38″, 39″ in such a supporting piece. The supporting pieces 33′, 34′ are advantageously formed of a plastic material or of metal.

Claims (7)

1. A floor deck member (1; 30) for scaffolding (24), wherein the floor deck member at each end has a mounting area (2, 3; 33, 34) designed to rest on a scaffold beam (25; 26),
wherein the floor deck member has a plurality of elongate reinforcing profiled members (4, 5, 6; 37, 38, 39) which are embedded in longitudinal ribs (7, 8, 9; 35, 35′, 35″) on the underside of the floor deck member;
wherein between adjacent ribs (7, 8, 9; 35, 35′, 35″) there are arranged support ribs (10, 11; 36, 36′); and
wherein a walk surface (12, 31, 32), the ribs (7,8,9: 35, 35′, 35″) and the support ribs (10, 11; 36, 36′) of the floor deck member are unitarily made of a composite plastic material,
characterised in that respective end portions (4′, 5′, 6′; 37′, 38′, 39′) of said profiled members (4, 5, 6; 35, 35′, 35″) form said mounting area when bearing against respective ones of the opposing scaffold beams (25; 26), and that supporting pieces (2, 3; 33′, 34′) are arranged at each end of the floor deck member and designed to limit movement of the floor deck member (1; 30) relative to opposing scaffold beams (25; 26) when these support the floor deck member via the mounting areas (2, 3; 33, 34).
2. A floor deck member for scaffolding as stated in claim 1, characterised in that the plastic material is composed of polyolefin material, for example, copolymer polypropylene, with an added mineral material, the plastic material also having an expansion material added thereto during moulding.
3. A floor deck member for scaffolding as stated in claim 2, characterised in that the proportion of the mineral material is 10-40%, preferably 20%.
4. A floor deck member for scaffolding as stated in claim 3, characterised in that the mineral material is dolomite.
5. A floor deck member for scaffolding as stated in claim 2, characterised in that the expansion material is added in an amount of 1-5% by weight, preferably 2% by weight.
6. A floor deck member for scaffolding as stated in claim 1, characterised in that the reinforcing profiled members (4″, 5″, 6″) in the floor deck member are capable of being joined to reinforcing profiled members in a longitudinal direction in an intermediate or adjacent floor deck member (13).
7. A floor deck member for scaffolding as stated in claim 1, characterised in that the floor deck member can be split into at least two parts (19, 16) for insertion of one or more extension pieces (13), which have a plurality of elongate reinforcing profiled members (17, 18, 19) that are embedded in longitudinal ribs (20, 21,22) on the underside of the extension piece, and where a walk surface (23), the ribs (20-22) and optional support ribs (24, 25) of the extension piece are unitarily made of said composite material, and that the extension piece forms a mechanical connection with adjacent floor deck member parts (1; 15; 16) when joined between the reinforcing profiled members (4″, 5″, 6″) of the floor deck member part and the reinforcing profiled members (17-19) of the extension piece.
US10/578,954 2003-11-12 2004-11-09 Floor deck member for scaffolding Abandoned US20070163200A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20035018 2003-11-12
NO20035018A NO319365B1 (en) 2003-11-12 2003-11-12 Floor element for scaffolding
PCT/NO2004/000338 WO2005047621A1 (en) 2003-11-12 2004-11-09 Floor deck member for scaffolding

Publications (1)

Publication Number Publication Date
US20070163200A1 true US20070163200A1 (en) 2007-07-19

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ID=29775171

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/578,954 Abandoned US20070163200A1 (en) 2003-11-12 2004-11-09 Floor deck member for scaffolding

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US (1) US20070163200A1 (en)
EP (1) EP1699990B1 (en)
AT (1) ATE467017T1 (en)
DE (1) DE602004027081D1 (en)
DK (1) DK1699990T3 (en)
ES (1) ES2345822T3 (en)
NO (1) NO319365B1 (en)
PL (1) PL1699990T3 (en)
WO (1) WO2005047621A1 (en)

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DK176257B1 (en) * 2004-08-11 2007-05-07 Pf Man Holding Aps Scaffolding board with removable hook bracket
US20080164099A1 (en) * 2004-09-01 2008-07-10 Pf Management Holding Aps Scaffold Board with Hooks Having Including Front Edges
DK176973B1 (en) * 2008-03-10 2010-08-16 Pf Man Holding Aps Scaffolding board with covered hook
GB2524780B (en) * 2014-04-02 2017-09-13 David Westlake Peter Modular scaffold board
CN104806024A (en) * 2015-03-04 2015-07-29 南京南化建设有限公司 Seamless welding-free construction method of patterned steel plate
TWI676726B (en) * 2018-07-13 2019-11-11 萬長益 Method of mounting detachable high-altitude walkway

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US1975262A (en) * 1933-02-08 1934-10-02 Everwear Mfg Company Swing seat
US2676066A (en) * 1951-05-25 1954-04-20 Woboril Company Folding swing stage
US3628628A (en) * 1970-04-06 1971-12-21 Bleacher Sales Co Scaffold platform
US3804198A (en) * 1972-09-07 1974-04-16 J Palumbo Combination ladder and mudboard
US3884328A (en) * 1973-10-01 1975-05-20 Chester I Williams Scaffold plank
US3908793A (en) * 1974-11-01 1975-09-30 Chicago Bridge & Iron Co Adjustable metal scaffold
US4349297A (en) * 1980-11-19 1982-09-14 Misener Terrance J Boat dock
US4496029A (en) * 1983-03-30 1985-01-29 Shigeharu Kuroda Scaffold plank
US4598794A (en) * 1985-03-22 1986-07-08 Anderson Carl E Scaffolding system
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Publication number Publication date
EP1699990A1 (en) 2006-09-13
WO2005047621A1 (en) 2005-05-26
PL1699990T3 (en) 2010-12-31
NO20035018D0 (en) 2003-11-12
NO319365B1 (en) 2005-07-18
EP1699990B1 (en) 2010-05-05
DE602004027081D1 (en) 2010-06-17
ES2345822T3 (en) 2010-10-04
DK1699990T3 (en) 2010-08-16
NO20035018L (en) 2005-05-13
ATE467017T1 (en) 2010-05-15

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