EP 0041468 B1 19870603 - APPARATUS SUITABLE FOR PREPARING COLLOIDAL MIXTURES
Title (en)
APPARATUS SUITABLE FOR PREPARING COLLOIDAL MIXTURES
Publication
Application
Priority
- LU 82500 A 19800604
- LU 82988 A 19801208
Abstract (en)
[origin: US4464055A] A method for producing colloidal mixtures, especially water-cement mixtures with or without further solid additions, comprising the steps of feeding the material for forming the colloidal mixture into a container, stirring the material fed into the container by a blade stirrer driven by a motor at a circumferential speed at the outer diameter of the blade stirrer of at least 500 and preferably 1,500 meters per minute, continuously measuring the variations in the energy take-up of the motor, and stopping stirring of the material when the continuously observed energy take-up indicates a sudden transition from a fluctuating to a substantially steady course; and an apparatus for carrying out this method.
IPC 1-7
IPC 8 full level
B01F 3/12 (2006.01); B01F 7/16 (2006.01); B01F 7/18 (2006.01); B01F 15/00 (2006.01); B01F 7/00 (2006.01)
CPC (source: EP US)
B01F 23/53 (2022.01 - EP US); B01F 27/805 (2022.01 - EP US); B01F 27/90 (2022.01 - EP US); B01F 35/212 (2022.01 - EP US); B01F 35/451 (2022.01 - EP US); B01F 27/1125 (2022.01 - EP US); B01F 2101/28 (2022.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0041468 A2 19811209; EP 0041468 A3 19840905; EP 0041468 B1 19870603; CA 1187481 A 19850521; DE 3176225 D1 19870709; US 4464055 A 19840807
DOCDB simple family (application)
EP 81630040 A 19810526; CA 377792 A 19810519; DE 3176225 T 19810526; US 26982581 A 19810602