EP 0406612 B1 19931020 - Process and equipment for realizing reinforced concrete pipes.
Title (en)
Process and equipment for realizing reinforced concrete pipes.
Title (de)
Verfahren und Vorrichtung zur Herstellung von verstärkten Betonrohren.
Title (fr)
Procédé et dispositif de fabrication de tuyaux en béton renforcé.
Publication
Application
Priority
IT 2107489 A 19890703
Abstract (en)
[origin: EP0406612A1] The realization is foreseen of concrete pipes (16), reinforced with preassembled cages (4), by means of the pressure vibration system, using a vertical nucleus (1) positioned coaxially to an external reinforcement (2), in which the compacting of the concrete is carried out by means of a vibrating part (7) of the head of the nucleus (1), which does not draw the material in rotation and therefore does not induce torsion in the reinforcement (4).
IPC 1-7
IPC 8 full level
B28B 21/16 (2006.01)
CPC (source: EP)
B28B 21/16 (2013.01)
Designated contracting state (EPC)
DE DK ES FR GB
DOCDB simple family (publication)
EP 0406612 A1 19910109; EP 0406612 B1 19931020; DE 69004015 D1 19931125; DE 69004015 T2 19940505; ES 2047761 T3 19940301; IT 1230976 B 19911108; IT 8921074 A0 19890703
DOCDB simple family (application)
EP 90111506 A 19900619; DE 69004015 T 19900619; ES 90111506 T 19900619; IT 2107489 A 19890703