Global Patent Index - EP 1073507 A1

EP 1073507 A1 2001-02-07 - ANNULAR GAP INJECTOR

Title (en)

ANNULAR GAP INJECTOR

Title (de)

RINGSPALTINJEKTOR

Title (fr)

INJECTEUR A FENTE ANNULAIRE

Publication

EP 1073507 A1 (DE)

Application

EP 98931998 A

Priority

DE 9801150 W

Abstract (en)

[origin: WO9955442A1] An annular gap injector, more particularly, for one or more injector steps, for cleaning dust filters during waste gas purification is improved in such a way that it can be controlled without any valve controls on the admission of the cleaning gas to purify filter elements, whereby the annular gap injectors can be activated individually in a purification device depending on the amount of particles adhered to the associated filter elements leading to an almost continuos removal of the particles from the purification device without disrupting the processing facility upstream. To this end, a blocking element, e.g. a circular ring membrane (4) or a valve is mounted on the channel (14), said valve blocking the passage of the cleaning gas to the annular gap (13) and, if required, releasing the passage of the cleaning gas via the annular gap (13) to the outflow.

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

B01D 46/04; F16K 7/17

IPC 8 full level (invention and additional information)

B01D 46/00 (2006.01); B01D 46/04 (2006.01)

CPC (invention and additional information)

B01D 46/04 (2013.01); B01D 46/0068 (2013.01); B01D 46/4272 (2013.01)

Citation (search report)

See references of WO 9955442A1

Designated contracting state (EPC)

AT BE CH DK ES FR GB GR IE LI NL PT

EPO simple patent family

WO 9955442 A1 19991104; AU 8207398 A 19991116; EP 1073507 A1 20010207

INPADOC legal status


2002-06-12 [18R] REFUSED

- Effective date: 20020126

2001-09-05 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010720

2001-03-28 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: FT INTERNATIONAL B.V.

2001-03-28 [RIN1] INVENTOR (CORRECTION)

- Inventor name: LUEBBERS, MATTHIAS

2001-02-07 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001019

2001-02-07 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DK ES FR GB GR IE LI NL PT