Global Patent Index - EP 0550926 B1

EP 0550926 B1 2000-03-29 - Method for extracting and providing in desired composition granular material such as sand

Title (en)

Method for extracting and providing in desired composition granular material such as sand

Title (de)

Verfahren zur Förderung und Bereitstellung von körnigem Material, zum Beispiel Sand, in gewünschter Zusammensetzung

Title (fr)

Procédé pour extraire et fournir dans une composition désirée un matériau granulé

Publication

EP 0550926 B1 (EN)

Application

EP 92203831 A

Priority

NL 9102049 A

Abstract (en)

[origin: EP0550926A1] Method for extracting and providing in desired composition of granular material, comprising the following steps of: sucking or scooping (6) up granular material; separating (7,9,10,11,12,13,14,15) the granular material into fractions (B,C,D,E,F,G); mixing the granular material into a mixture of the different fractions; and adding granular material from a fraction insufficiently available at the extraction location. 2. Installation for extracting and providing granular material, for instance sand and gravel, in desired composition, comprising: means for sucking or scooping (6) up granular material; means for sorting (7,9,10,11,12,13,14,15) the material into two or more grain size classes; means for mixing the material from the classes into a mixture of granular material; and means for adding one or more additives to the mixture. <IMAGE>

IPC 1-7 (main, further and additional classification)

B28C 7/04

IPC 8 full level (invention and additional information)

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

CPC (invention and additional information)

B28C 7/0007 (2013.01); B28C 9/00 (2013.01)

Designated contracting state (EPC)

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

EPO simple patent family

EP 0550926 A1 19930714; EP 0550926 B1 20000329; AT 191170 T 20000415; DE 69230852 D1 20000504; DE 69230852 T2 20010104; DK 0550926 T3 20000703; ES 2143985 T3 20000601; GR 3033627 T3 20001031; NL 9102049 A 19930701; PT 550926 E 20000731; SG 47104 A1 19980320

INPADOC legal status


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