EP 0250921 B1 19951227 - Air classifier
Title (en)
Air classifier
Title (de)
Sichter
Title (fr)
Séparateur pneumatique
Publication
Application
Priority
DE 3622413 A 19860703
Abstract (en)
[origin: US4792393A] The invention relates to a sifter in which the spiral for delivery of the air for sifting is divided into a plurality of channels lying one above another in which elements for setting the quantity of sifting air delivered to the individual channels are provided. In such a sifter the quantity of sifting air in the individual regions of the sifting chamber can be optimally adapted to the requirements, which leads to a substantial improvement in the degree of separation.
IPC 1-7
IPC 8 full level
B07B 7/083 (2006.01); B07B 11/04 (2006.01)
CPC (source: EP US)
B07B 7/083 (2013.01 - EP US); B07B 11/04 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0250921 A2 19880107; EP 0250921 A3 19890830; EP 0250921 B1 19951227; DE 3622413 A1 19880107; DE 3622413 C2 19950803; DE 3751648 D1 19960208; ES 2080716 T3 19960216; IN 170755 B 19920516; US 4792393 A 19881220
DOCDB simple family (application)
EP 87108132 A 19870604; DE 3622413 A 19860703; DE 3751648 T 19870604; ES 87108132 T 19870604; IN 508DE1987 A 19870612; US 6368987 A 19870619