EP 1619305 A3 20060906 - Track bed partly injected with foam
Title (en)
Track bed partly injected with foam
Title (de)
Teilverschäumter Gleisoberbau
Title (fr)
Assiette de voie partiellement injectée avec une mousse
Publication
Application
Priority
- EP 04017427 A 20040723
- EP 05106393 A 20050713
Abstract (en)
[origin: EP1619305A2] The railway track superstructure is located on a base surface (12) and is inclined crossways to the track extent with ballast comprising individual stones (18). Sleepers (20) are embedded in the ballast and rails (24) are fixed to them. Beneath the sleepers the ballast has load absorption areas (26), which when there is train movement on the rails take up loads acting vertically on the ballast and on the base surface beneath the ballast. The hollow spaces between the ballast stones within the load absorption areas are filled with a foam material (28), particularly polyurethane and between the ballast and the base surface an elastic drainage layer (14) is arranged.
IPC 8 full level
E01B 1/00 (2006.01); E01B 27/18 (2006.01)
CPC (source: EP)
E01B 1/001 (2013.01); E01B 1/008 (2013.01); E01B 27/18 (2013.01); E01B 2204/03 (2013.01)
Citation (search report)
- [A] DE 4315215 A1 19931111 - PHOENIX AG [DE]
- [DA] DE 2063727 A1 19720824
- [A] WO 9428247 A1 19941208 - KOCH MARMORIT GMBH [DE], et al
- [A] GB 2356880 A 20010606 - TERRAM LTD [GB]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1619305 A2 20060125; EP 1619305 A3 20060906; EP 1619305 A8 20060719; EP 1619305 B1 20090506; AT E430837 T1 20090515; DE 502005007225 D1 20090618; ES 2326125 T3 20091001; PL 1619305 T3 20091030
DOCDB simple family (application)
EP 05106393 A 20050713; AT 05106393 T 20050713; DE 502005007225 T 20050713; ES 05106393 T 20050713; PL 05106393 T 20050713