Global Patent Index - EP 0972435 A3

EP 0972435 A3 2000-02-02 - Soil sifting device

Title (en)

Soil sifting device

Title (de)

Siebvorrichtung für Erde

Title (fr)

Dispositif pour le criblage de terre

Publication

EP 0972435 A3 (EN)

Application

EP 99303653 A

Priority

GB 9810097 A

Abstract (en)

[origin: GB2337216A] The soil sifting drum (trommel; Figure 1) comprises an inclined rotatable mesh cylinder, the upper end of which is open to be fed with soil, perhaps from a hopper. At its lower end the bottom plate B comprises a shallow helix of 450‹ which causes oversized rejects to be retained in the drum during normal rotation, but which permits said rejects to be discharged if the drum is rotated in the opposite direction. Optionally baffles are fitted inside the drum to increase residence time, and the meshes can be changed for different grading operations. The drum is mounted on a chassis with two wheels, and is driven either by a hand crank, or by a motor (electric or petrol).

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

A01B 1/00; B07B 1/24

IPC 8 full level (invention and additional information)

B07B 1/24 (2006.01)

CPC (invention and additional information)

B07B 1/24 (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

GB 2337216 A 19991117; GB 9810097 D0 19980708; EP 0972435 A2 20000119; EP 0972435 A3 20000202

INPADOC legal status


2001-05-02 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20000803

2000-10-11 [AKX] PAYMENT OF DESIGNATION FEES

2000-02-02 [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

2000-02-02 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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

2000-01-19 [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

2000-01-19 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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