EP 0821111 A3 19980708 - 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

EP 0821111 A3 19980708 (DE)

Application

EP 97112581 A 19970723

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

E03F 5/02; E03F 3/04; E02D 29/12

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)

Citation (search report)

[DYA] DE 9115399 U1 19920709
[Y] DE 9300116 U1 19930304
[A] US 5303518 A 19940419 - STRICKLAND JAMES K [US]
[A] EP 0670395 A2 19950906 - NIEMEYER GMBH & CO KG SOEHNE [DE]

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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