EP 0821111 B1 20000913 - Prefabricated concrete manhole element with a plastic liner
Title (en)
Prefabricated concrete manhole element with a plastic liner
Title (de)
Betonfertigteil-Schacht mit einer Kunststoff-Auskleidung
Title (fr)
Regard de chaussée préfabriquée en béton avec un revêtement en plastique
Publication
Application
Priority
- DE 29612834 U 19960724
- DE 29704338 U 19970311
Abstract (en)
[origin: EP0821111A2] The ready-made concrete shaft has a double-walled sealed pipe (4) in at least one wall opening. The pipe has a concrete outer and a plastics inner liner, the end of which is held inside the shaft opening. The inner liner is exposed over a sealing section and the concrete outer pipe projects into the shaft wall opening by a shorter distance than the exposed section. This opening has a plastics sleeve which converges from the outside to the shaft inside in at least three steps, forming a compatible socket with a shoulder for the pipe end. At least one sealing ring fits between the sleeve and the pipe. The shaft has a plastics inner liner (2).
IPC 1-7
IPC 8 full level
E02D 29/12 (2006.01); E03F 3/04 (2006.01); E03F 5/02 (2006.01)
CPC (source: EP)
E02D 29/12 (2013.01); E02D 29/124 (2013.01); E02D 29/125 (2013.01); E02D 29/149 (2013.01); E03F 5/02 (2013.01); E03F 5/021 (2013.01); E03F 5/025 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR LI
DOCDB simple family (publication)
EP 0821111 A2 19980128; EP 0821111 A3 19980708; EP 0821111 B1 20000913; AT E196337 T1 20000915; CZ 235297 A3 19980218; CZ 293312 B6 20040317
DOCDB simple family (application)
EP 97112581 A 19970723; AT 97112581 T 19970723; CZ 235297 A 19970723