Global Patent Index - EP 0394785 A1

EP 0394785 A1 19901031 - Means and process for automatic coloring of concrete.

Title (en)

Means and process for automatic coloring of concrete.

Title (de)

Mittel und Verfahren zum selbsttätigen Färben von Beton.

Title (fr)

Moyens et procédé pour colorer automatiquement du béton.

Publication

EP 0394785 A1 19901031 (EN)

Application

EP 90107133 A 19900413

Priority

IT 4683189 A 19890426

Abstract (en)

A process for the coloring of concrete comprises an automatic programmable plant in which, from some microbatchers (2), the batches of coloring products are weighed with an electronic balance (5) which supports a conveyor belt (3) used to discharge said batches in a container (6) with mixer (7) with motor (8). In the container (6) the batches of colorants are prediluted in water then discharged in the concrete mixers in which the concrete mixed with the necessary aggregates is already present. A second batch of water, useful to complete the final mix of colored concrete, is subsequently discharged in the container (6), along the drain valve (12), the suction pump (13) and the channel (11) with the main object of washing the plant and preparing it for the following mixing operations, possibly different as regards batches and/or components.

IPC 1-7

B28C 7/00; B28C 9/00

IPC 8 full level

B28C 7/00 (2006.01); B28C 7/04 (2006.01); B28C 9/00 (2006.01)

CPC (source: EP)

B28C 7/0431 (2013.01); B28C 9/002 (2013.01)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR LI LU NL SE

DOCDB simple family (publication)

EP 0394785 A1 19901031; EP 0394785 B1 19930120; AT E84742 T1 19930215; DE 69000782 D1 19930304; IT 1234140 B 19920504; IT 8946831 A0 19890426

DOCDB simple family (application)

EP 90107133 A 19900413; AT 90107133 T 19900413; DE 69000782 T 19900413; IT 4683189 A 19890426