Global Patent Index - EP 0911445 A3

EP 0911445 A3 2000-04-26 - Apparatus for making or processing a web material

Title (en)

Apparatus for making or processing a web material

Title (de)

Maschine zur Herstellung oder Bearbeitung einer Materialbahn

Title (fr)

Appareil pour la fabrication ou le traitement d'un matériau en bande

Publication

EP 0911445 A3 (DE)

Application

EP 98112622 A

Priority

  • DE 19742856 A
  • DE 19752562 A

Abstract (en)

[origin: EP0911445A2] The paper making or paper finishing machine has at least one blowing chamber (19) to direct a hot gas at the web (3) and/or supporting belt (13). The gas is a combustion gas or is heated by a combustion gas. Exhaust from the blowing chamber (19) and/or fresh air is fed to the hot gas. The heater (17,17') burns oil or a combustion gas. One burner (17) is within a drying cylinder (7,9) and a heater (17') is opposite the cylinder (7,9) or deflection roller (11). Where the machine (1) is for paper making, the cylinders (7,9) and/or blowing chamber (19) are in the drying section (5) and/or press section and/or in the wet section of the paper making machine. The blowing chamber (19) has a number of zones across the direction (15) of web travel to cover the web width, preferably supplied separately with the hot gas. A control system sets the temp. and/or gas vol. at the blower zones. The cylinders (7,9) are heated to a temperature of 100-400 [deg]C and preferably 160-350 [deg]C. The hot gas has a temperature of 150-600 [deg]C and preferably 250-450 [deg]C.

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

D21F 5/04; D21F 5/02

IPC 8 full level (invention and additional information)

D21F 5/02 (2006.01); D21F 5/18 (2006.01); D21F 5/20 (2006.01)

CPC (invention and additional information)

D21F 5/18 (2013.01); D21F 5/025 (2013.01); D21F 5/20 (2013.01)

Citation (search report)

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

EP 0911445 A2 19990428; EP 0911445 A3 20000426

INPADOC legal status


2004-09-22 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040318

2003-05-21 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030407

2001-01-03 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE FI SE

2000-12-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001026

2000-12-20 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: VOITH PAPER PATENT GMBH

2000-04-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

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

2000-04-26 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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

2000-04-26 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7D 21F 5/04 A, 7D 21F 5/02 B

1999-12-29 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: VOITH SULZER PAPIERTECHNIK PATENT GMBH

1999-04-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE FI SE

1999-04-28 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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