Global Patent Index - EP 0837732 B1

EP 0837732 B1 20001206 - SEPARATING INTERMIXED MATERIALS OF DIFFERENT SPECIFIC GRAVITY

Title (en)

SEPARATING INTERMIXED MATERIALS OF DIFFERENT SPECIFIC GRAVITY

Title (de)

TRENNUNG VON GEMISCHTEN MATERIALIEN UNTERSCHIEDLICHEN SPEZIFISCHEN GEWICHTS

Title (fr)

SEPARATION DE MATERIAUX MELANGES DE DIFFERENTES DENSITES

Publication

EP 0837732 B1 20001206 (EN)

Application

EP 96922716 A 19960711

Priority

  • CA 9600482 W 19960711
  • US 50201995 A 19950713
  • US 51147895 A 19950804

Abstract (en)

[origin: WO9702894A1] A centrifugal separator for separating heavy metals from lighter or includes a bowl (10) rotatable about its axis and defining annular collection areas (19, 20) on the peripheral surface of the bowl at axially spaced positions along the bowl. At the peripheral wall (11) in each area is provided a plurality of angularly spaced discharge openings (29) which are controlled by pinch valves (42) to periodically allow the radial escape of the collected material. The pinch valves of a first area (19) are controlled at different timing to the pinch valves of a second area (20) to vary the concentration of the materials collected in the different areas. The pinch valves are operated by a pressurized liquid system which is fed to the different areas through a swivel coupling mounted at a longitudinal shaft supporting the bowl.

IPC 1-7

B04B 1/00; B04B 1/14; B04B 11/04

IPC 8 full level

B04B 1/00 (2006.01); B04B 1/10 (2006.01); B04B 11/02 (2006.01)

CPC (source: EP)

B04B 1/00 (2013.01); B04B 1/10 (2013.01); B04B 11/02 (2013.01)

Designated contracting state (EPC)

AT DE ES FR GB GR IE IT PT SE

DOCDB simple family (publication)

WO 9702894 A1 19970130; AR 002839 A1 19980429; AT E197915 T1 20001215; AU 6351596 A 19970210; AU 700809 B2 19990114; BR 9609442 A 19991214; CA 2226514 A1 19970130; DE 69611170 D1 20010111; EA 000326 B1 19990429; EA 199800122 A1 19980827; EP 0837732 A1 19980429; EP 0837732 B1 20001206; MX PA98001208 A 20050725; PE 5498 A1 19980227

DOCDB simple family (application)

CA 9600482 W 19960711; AR 10358696 A 19960715; AT 96922716 T 19960711; AU 6351596 A 19960711; BR 9609442 A 19960711; CA 2226514 A 19960711; DE 69611170 T 19960711; EA 199800122 A 19960711; EP 96922716 A 19960711; MX 9801208 A 19960711; PE 00052896 A 19960715