EP 0401462 A3 19910130 - PROCESS FOR MAKING AND/OR HANDLING CONCRETE BLOCKS
Title (en)
PROCESS FOR MAKING AND/OR HANDLING CONCRETE BLOCKS
Publication
Application
Priority
DE 3918271 A 19890605
Abstract (en)
[origin: EP0401462A2] Process for making and/or handling concrete blocks which are produced in moulds filled with concrete and are embossed on their surface by means of punches which have recesses or projections. The surface of the concrete blocks is subsequently roughened, shaped or textured and freed of loose parts by brushes, in particular strip brushes or roller brushes. <IMAGE>
IPC 1-7
IPC 8 full level
B28B 3/00 (2006.01); B28B 11/08 (2006.01); B28B 11/18 (2006.01); B28D 1/18 (2006.01)
CPC (source: EP US)
B28B 11/0818 (2013.01 - EP US); B28D 1/185 (2013.01 - EP US)
Citation (search report)
- [X] DE 2426205 A1 19751211 - STETTER GMBH
- [X] GB 468234 A 19370701 - DUNCAN WHITEHOUSE, et al
- [Y] GB 656589 A 19510829 - EASTWOODS LTD
- [A] FR 586196 A 19250316
- [A] FR 2468566 A1 19810508 - AYELLA DENIS [FR]
- [A] DE 2442070 A1 19760318 - GERHAHER MAX
- [A] US 4229156 A 19801021 - HYYTINEN NIILO M
Designated contracting state (EPC)
AT BE CH DE FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0401462 A2 19901212; EP 0401462 A3 19910130; CA 2017614 A1 19901205; DD 294452 A5 19911002; JP H0381107 A 19910405; US 5133915 A 19920728
DOCDB simple family (application)
EP 90101272 A 19900123; CA 2017614 A 19900528; DD 34068290 A 19900515; JP 14604890 A 19900604; US 52258990 A 19900511