Global Patent Index - EP 1239968 A1

EP 1239968 A1 2002-09-18 - DEVICE AND METHOD FOR SEPARATING PARTICLES BY DIELECTROPHORESIS

Title (en)

DEVICE AND METHOD FOR SEPARATING PARTICLES BY DIELECTROPHORESIS

Title (de)

APPARATUS UND VERFAHREN ZUR TRENNEN VON TEILCHEN DURCH ELEKTROPHORESIS

Title (fr)

DISPOSITIF ET PROCEDE POUR SEPARER DES PARTICULES PAR DIELECTROPHORESE

Publication

EP 1239968 A1 (EN)

Application

EP 00991208 A

Priority

  • EP 00991208 A
  • EP 0012896 W
  • EP 99125151 A
  • EP 00107355 A

Abstract (en)

[origin: WO0143880A1] The invention relates to a device (1) for continuous separation of a desired fraction of particulate matter from a liquid suspension containing such particulate matter, the device (1) comprising electrode elements (2, 3) and means for generating an alternating non-uniform dielectric field between said electrode elements, wherein a first electrode (2) has the form of a screw conveyor or a helical spiral and is rotatable around its longitudinal axis, and a second electrode (3) is arranged at a distance opposite to the first electrode and has a form other than the rotatable first electrode, and preferably has the form of a tubular housing (3) surrounding the first rotatable electrode (2). The device (1) may be placed inside or outside a container (16) containing a liquid particle suspension. The invention also relates to applications of said device for preparative purposes in the fields of microbiology, biotechnology and medicine, and particularly for the separation of polarizable biological matter such as plant, animal or human cells.

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

B03C 5/02

IPC 8 full level (invention and additional information)

B03C 5/02 (2006.01)

CPC (invention and additional information)

B03C 5/028 (2013.01)

Citation (search report)

See references of WO 0143880A1

Designated contracting state (EPC)

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

EPO simple patent family

WO 0143880 A1 20010621; WO 0143880 A9 20020912; AU 3160301 A 20010625; EP 1239968 A1 20020918

INPADOC legal status


2004-05-12 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20031105

2003-06-04 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030424

2002-12-18 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: PRIOR, ADALBERT

2002-12-18 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: BYERS, CHARLES

2002-09-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020715

2002-09-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-09-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI