Global Patent Index - EP 1034023 A1

EP 1034023 A1 2000-09-13 - METHOD FOR CLEANING CANDLES IN A CANDLE FILTER

Title (en)

METHOD FOR CLEANING CANDLES IN A CANDLE FILTER

Title (de)

VERFAHREN ZUR REINIGUNG VON FILTERKERZEN EINES KERZENFILTERS

Title (fr)

PROCEDE POUR NETTOYER DES BOUGIES D'UN FILTRE A BOUGIES

Publication

EP 1034023 A1 (DE)

Application

EP 99940178 A

Priority

  • DE 19837569 A
  • EP 9905768 W

Abstract (en)

[origin: DE19837569A1] The candle (4), seated in a support plate (3), has an integrally molded, or separately fitted, tube extending into the upper opening. A radial gap is formed between the tube and the bore of the candle that will determine the thickness of a layer of cleaning fluid passed into the gap. Compressed air entering the tube as timed pulses forces the layer uniformly through the candle wall. The frequency of the pulses is chosen so that the layer of cleaning fluid can re-establish itself between pulses. The air enters at a lower level than the cleaning fluid.

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

B01D 29/11; B01D 29/66

IPC 8 full level (invention and additional information)

B01D 29/66 (2006.01); B01D 29/11 (2006.01)

CPC (invention and additional information)

B01D 29/114 (2013.01); B01D 2201/0446 (2013.01)

Combination set (CPC)

B01D 29/114 + B01D 29/52 + B01D 29/661

Citation (search report)

See references of WO 0010681A1

Designated contracting state (EPC)

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

EPO simple patent family

DE 19837569 A1 20000224; DE 19837569 B4 20060706; BR 9906895 A 20000926; CN 1136029 C 20040128; CN 1275092 A 20001129; CZ 20001400 A3 20001115; CZ 301157 B6 20091118; EP 1034023 A1 20000913; JP 2002523206 A 20020730; RU 2207897 C2 20030710; US 6439273 B1 20020827; WO 0010681 A1 20000302

INPADOC legal status


2002-06-05 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20011110

2001-05-23 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010409

2000-09-13 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000329

2000-09-13 [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