Global Patent Index - EP 1163958 A1

EP 1163958 A1 2001-12-19 - A rotary tubular sieve for powder materials

Title (en)

A rotary tubular sieve for powder materials

Title (de)

Umlaufende Siebtrommel für pulverförmiges Material

Title (fr)

Tamis cylindrique rotatif pour matières pulvérulentes

Publication

EP 1163958 A1 (EN)

Application

EP 00830417 A

Priority

EP 00830417 A

Abstract (en)

A sieve for powder materials comprises a screen (2) which is commandably rotatable about a horizontal rotation axis (x-x). The sieve is provided with a hammer device (4) for inducing vibrations on the screen (2). During the screen rotation, a striker mass (7) moves alternatingly between two extreme endrun positions, striking alternatingly against two endrun stops (8,9) which are solid with the screen and which are located at the extreme endrun positions. At each revolution of the screen, the striker mass completes a full back-and-forth run. When the striker mass strikes the endrun stops (8,9) the screen (2) is shocked by vibrations which cause the powder materials to dislodge from perforations in the screen (2) and therefore clogging of the perforations is prevented. <IMAGE>

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

B07B 1/22; B07B 1/54

IPC 8 full level (invention and additional information)

B07B 1/22 (2006.01); B07B 1/54 (2006.01)

CPC (invention and additional information)

B07B 1/22 (2013.01); B07B 1/54 (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 1163958 A1 20011219

INPADOC legal status


2003-04-09 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20020620

2002-10-17 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2002-09-11 [AKX] PAYMENT OF DESIGNATION FEES

2001-12-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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

2001-12-19 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

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