EP 0928850 A3 19991027 - Drainage channels
Title (en)
Drainage channels
Title (de)
Entwässerungsrinnen
Title (fr)
Caniveau d'écoulement
Publication
Application
Priority
GB 9800473 A 19980109
Abstract (en)
[origin: EP0928850A2] A drainage channel section has an interior flow-confining surface including an elongate planar floor (12) having spaced parallel side edges. Two side walls (14) project outwardly from respective side edges of the floor (12) and each side wall is formed by an upper wall portion (15) and a lower wall portion (16). The lower wall portions (16) extend upwardly and outwardly from the floor (12) at an angle alpha . The width of the floor (12) may be between W/1.5 and W/2.5 where W is the width of the channel between the outer edges of the lower side wall portions (16). The height of these edges above the floor may be <MATH> where alpha is between 45 DEG and 75 DEG . This provides good flow capacity and sediment transportation. It also allows the sections to be free standing and to be stacked in pairs with one section of the pair inverted and the side wall of the inverted section located between the side walls of the other section. <IMAGE>
IPC 1-7
IPC 8 full level
E01C 11/22 (2006.01); E03F 3/04 (2006.01)
CPC (source: EP)
E01C 11/227 (2013.01); E03F 3/046 (2013.01)
Citation (search report)
- [X] FR 2530693 A3 19840127 - MEISINGER KG M [DE]
- [X] GB 2220965 A 19900124 - DOW MAC CONCRETE LTD [GB]
- [XPD] GB 2316428 A 19980225 - HODKIN & JONES [GB]
- [A] FR 2652839 A1 19910412 - NICOLL RACCORDS PLASTIQUES [FR]
- [AD] EP 0384638 A2 19900829 - HODKIN & JONES SHEFFIELD LTD [GB]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0928850 A2 19990714; EP 0928850 A3 19991027; GB 2333113 A 19990714; GB 2333113 B 20020626; GB 9800473 D0 19980304
DOCDB simple family (application)
EP 98310210 A 19981211; GB 9800473 A 19980109