Global Patent Index - EP 1144286 A3

EP 1144286 A3 2002-09-04 - METHOD AND DEVICE FOR PNEUMATICALLY CONVEYING BULK MATERIAL

Title (en)

METHOD AND DEVICE FOR PNEUMATICALLY CONVEYING BULK MATERIAL

Title (de)

VERFAHREN UND VORRICHTUNG ZUR PNEUMATISCHEN FÖRDERUNG VON SCHÜTTGUT

Title (fr)

PROCEDE ET DISPOSITIF DE TRANSPORT PNEUMATIQUE DE MATIERE EN VRAC

Publication

EP 1144286 A3 (DE)

Application

EP 00935200 A

Priority

  • DE 19930281 A
  • EP 0005368 W

Abstract (en)

[origin: DE19930281A1] The invention relates to a method for pneumatically conveying bulk material from a low level to a higher level. According to said method, the bulk material is first conveyed essentially horizontally, then raised by pneumatic means and conveyed onwards pneumatically. During the first, horizontal stage, the bulk material is conveyed in form of separate plugs (9) with gas cushions (10) between them. The bulk material is raised in the form of an essentially continuous stream of material (12). A device for modifying the state of the material (11) is used to prevent said material from passing through unstable conveying states during the transition from being conveyed in plugs to being conveyed continuously in a flowing or suspended manner.

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

B65G 53/00

IPC 8 full level (invention and additional information)

B65G 53/52 (2006.01)

CPC (invention and additional information)

B65G 53/525 (2013.01)

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 19930281 A1 20010111; EP 1144286 A2 20011017; EP 1144286 A3 20020904; WO 0102274 A2 20010111; WO 0102274 A3 20010809

INPADOC legal status


2002-09-04 [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

2002-09-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

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

2002-02-13 [18W] APPLICATION WITHDRAWN

- Date of withdrawal: 20011215

2001-10-24 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010828

2001-10-17 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

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

2001-10-17 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

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

2001-10-17 [XX] MISCELLANEOUS:

- Free text: DERZEIT SIND DIE WIPO-PUBLIKATIONSDATEN A3 NICHT VERFUEGBAR.