Global patent index - EP 1069956 A1

EP 1069956 A1 2001-01-24 - CENTRIFUGAL EVAPORATOR

Title (en)

CENTRIFUGAL EVAPORATOR

Title (de)

ZENTRIFUGALVERDAMPFER

Title (fr)

EVAPORATEUR CENTRIFUGE

Publication

EP 1069956 A1 (EN)

Application

EP 00900739 A

Priority

  • GB 0000172 W
  • GB 9902748 A
  • GB 9916987 A
  • GB 9929898 A

Abstract (en)

[origin: WO0047327A1] A centrifugal evaporator, in which inclined sample tubes (61) supported in a holder (62) are rotatably mounted on a rotor (64), within a vacuum chamber (76), has a rotatable drive shaft (63) connected to the holder. Drive to the shaft (63) is via a spindle (70) passing up through the centre of a main drive shaft (71) and connected by bevel gears (67), (69) to the shaft (63). In operation, the relatively slow rotation of the holder (62) mounted on the shaft (63), in combination with rotation about the main shaft (71), causes the liquid sample in each tube (61) to be swept around the inside walls of the tube to simulate a vortex, thereby increasing the exposed surface area and improving evaporation. In an alternative arrangement the holder is pivoted relative to the rotor, so that the liquid sample is alternatively slushed from one side wall to the other.

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

B04B 5/04; B01D 1/14; B01D 1/22; B01L 3/14; B04B 7/02; B04B 15/08

IPC 8 full level (invention and additional information)

B01D 1/22 (2006.01); B04B 5/02 (2006.01); B04B 5/04 (2006.01)

CPC (invention and additional information)

B01D 1/223 (2013.01); B04B 5/02 (2013.01); B04B 5/0421 (2013.01)

Citation (search report)

See references of WO 0047327A1

Designated contracting state (EPC)

CH DE FR LI

EPO simple patent family

WO 0047327 A1 20000817; EP 1069956 A1 20010124

INPADOC legal status

2004-05-12 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Ref Legal Event Code: RBV

- Designated State(s): CH DE FR LI

2004-03-10 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030801

2001-01-24 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000927

2001-01-24 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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