EP 1687496 A4 20130220 - COLD-FORMED STEEL JOISTS
Title (en)
COLD-FORMED STEEL JOISTS
Title (de)
KALTGEFORMTE STAHLTRÄGER
Title (fr)
POUTRELLES EN ACIER FORMEES A FROID
Publication
Application
Priority
- CA 2004001889 W 20041028
- US 51462203 P 20031028
- US 72161003 A 20031125
Abstract (en)
[origin: CA2542848C] An upper chord bearing joist (20) comprises an upper elongate chord member (22) cold-formed from a unitary piece of sheet steel, the upper chord member (22) having a flange portion and a web receiving portion orthogonal thereto and the web receiving portion having two web receiving tabs (46, 48) and a pair of inner flange portions (45, 47), each inner flange portion extending outward from one of the web receiving tabs respectively; a lower elongate chord member (24), wherein the upper chord member (22) extends longitudinally beyond the lower chord member (24) at each end thereof; and a generally planar steel web (26) attached to the web receiving portion of the upper chord member (22) between the two web receiving tabs (46, 48) and attached to the lower chord member (24). A plurality of upper chord bearing joists may form a supporting system for use in composite floor and roof systems.
IPC 8 full level
E04C 3/08 (2006.01); B21D 47/01 (2006.01); B21D 53/00 (2006.01); E04B 5/10 (2006.01); E04B 5/29 (2006.01); E04B 5/40 (2006.01); E04C 3/06 (2006.01); E04C 3/07 (2006.01); E04C 3/09 (2006.01); E04C 3/11 (2006.01); E04C 3/29 (2006.01); E04C 3/293 (2006.01); E04C 3/294 (2006.01); E04C 3/02 (2006.01); E04C 3/04 (2006.01)
CPC (source: EP)
B21D 47/01 (2013.01); E04B 5/29 (2013.01); E04B 5/40 (2013.01); E04C 3/065 (2013.01); E04C 3/07 (2013.01); E04C 3/083 (2013.01); E04C 3/09 (2013.01); E04C 3/291 (2013.01); E04C 3/293 (2013.01); E04C 3/294 (2013.01); E04C 2003/026 (2013.01); E04C 2003/0413 (2013.01); E04C 2003/0452 (2013.01); E04C 2003/046 (2013.01)
Citation (search report)
- [XI] CA 1172463 A 19840814 - HAMBRO STRUCTURAL SYSTEMS LTD
- [XI] WO 0201016 A1 20020103 - NCI BUILDING SYSTEMS L P [US]
- [XI] US 2108373 A 19380215 - GREULICH GERALD G
- [XI] CA 900687 A 19720523 - ATKINSON ARCHIBALD H
- See references of WO 2005042869A1
Citation (examination)
US 2002020138 A1 20020221 - WALKER STEVEN H [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
AU 2004286000 A1 20050512; AU 2004286000 B2 20100729; AU 2004286000 B8 20101125; CA 2542848 A1 20050512; CA 2542848 C 20090811; EP 1687496 A1 20060809; EP 1687496 A4 20130220; HK 1132537 A1 20100226
DOCDB simple family (application)
AU 2004286000 A 20041028; CA 2542848 A 20041028; EP 04789796 A 20041028; HK 09112323 A 20091230