EP 0941827 A3 20010228 - Apparatus for on-site production of pumpable mortars
Title (en)
Apparatus for on-site production of pumpable mortars
Title (de)
Vorrichtung zur baustellenseitigen Herstellung von pumpfähigen Mörtelmassen
Title (fr)
Dispositif pour la production sur place des mortiers susceptibles d'être pompés
Publication
Application
Priority
DE 29804459 U 19980312
Abstract (en)
[origin: EP0941827A2] The arrangement consists of a trough (15) for the infeed of the dry component of the mixture which is fed-in via a connection (14) from e.g. a silo (13). An upward leading de-airing pipe (18) is connected to the trough. The de-airing pipe incorporates a tube (19) made from a flexible material, the open end of which has a number of longitudinal slits which fold inward to close the tube when there is a sudden increase in the speed of airflow from the trough. As the tube closes, concrete dust is prevented from being blown into the environment.
IPC 1-7
IPC 8 full level
B28C 5/12 (2006.01); B28C 7/00 (2006.01); E04G 21/00 (2006.01); F04C 29/00 (2006.01)
CPC (source: EP)
B01F 27/2123 (2022.01); B28C 5/1292 (2013.01); B28C 7/0076 (2013.01)
Citation (search report)
- [DA] DE 4318177 A1 19940303 - BUG BETRIEBS & GRUNDBESITZ [DE]
- [A] EP 0574728 A1 19931222 - MELCHIOR MARTIN THEODOR [DE]
- [A] US 4356007 A 19821026 - BOWMAN HAROLD L
- [A] US 3895646 A 19750722 - HOWAT MANUEL G
- [A] DE 2709220 A1 19780907 - ELBA WERK MASCHINEN GMBH & CO
- [A] PATENT ABSTRACTS OF JAPAN vol. 003, no. 012 (M - 047) 31 January 1979 (1979-01-31)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
DE 29804459 U1 19980813; CZ 9063 U1 19990913; EP 0941827 A2 19990915; EP 0941827 A3 20010228; PL 109152 U1 19990913
DOCDB simple family (application)
DE 29804459 U 19980312; CZ 911999 U 19990312; EP 98123593 A 19981210; PL 10915299 U 19990118