Global Patent Index - EP 0837732 B1

EP 0837732 B1 2000-12-06 - 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 (EN)

Application

EP 96922716 A

Priority

  • CA 9600482 W
  • US 50201995 A
  • US 51147895 A

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 (main, further and additional classification)

B04B 1/00; B04B 1/14; B04B 11/04

IPC 8 full level (invention and additional information)

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

CPC (invention and additional information)

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

Designated contracting state (EPC)

AT DE ES FR GB GR IE IT PT SE

EPO simple patent family

WO 9702894 A1 19970130; AR 002839 A1 19980429; AT 197915 T 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

INPADOC legal status


2002-05-01 [REG IE MM4A] PATENT LAPSED

2002-03-06 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20010711

2001-11-28 [26N] NO OPPOSITION FILED

2001-07-11 [PG25 GB] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: GB

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20010711

2001-07-11 [PG25 IE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IE

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20010711

2001-05-04 [EN] FR: TRANSLATION NOT FILED

2001-03-09 [PG25 GR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: GR

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20010309

2001-03-07 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20010307

2001-03-06 [PG25 PT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: PT

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20010306

2001-01-24 [REG IE FG4D] EUROPEAN PATENTS GRANTED DESIGNATING IRELAND

2001-01-11 [REF] CORRESPONDS TO:

- Document: DE 69611170 20010111

2000-12-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): AT DE ES FR GB GR IE IT PT SE

2000-12-06 [PG25 ES] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: ES

- Free text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

- Effective date: 20001206

2000-12-06 [PG25 SE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: SE

- Free text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

- Effective date: 20001206

2000-12-06 [PG25 AT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: AT

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20001206

2000-12-06 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FR

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20001206

2000-12-06 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IT

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20001206

2000-12-06 [REF] CORRESPONDS TO:

- Document: AT 197915 T 20001215

1999-03-03 [17Q] FIRST EXAMINATION REPORT

- Effective date: 19990113

1998-04-29 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19980211

1998-04-29 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT DE ES FR GB GR IE IT PT SE