(19)
(11)
EP 0 096 041 A1
(12)
(43)
Date of publication:
21.12.1983
Bulletin 1983/51
(21)
Application number:
82903355.0
(22)
Date of filing:
04.11.1982
(51)
International Patent Classification (IPC):
B01D
37/
04
( . )
D21G
9/
00
( . )
D21D
5/
02
( . )
(86)
International application number:
PCT/SE1982/000366
(87)
International publication number:
WO 1983/001969
(
09.06.1983
Gazette 1983/14)
(84)
Designated Contracting States:
DE FR SE
(30)
Priority:
24.11.1981
SE 19810006985
(71)
Applicant:
WIKDAHL, Nils Anders Lennart
S-182 64 Djursholm (SE)
(72)
Inventor:
WIKDAHL, Nils Anders Lennart
S-182 64 Djursholm (SE)
(74)
Representative:
Wiedemann, Bernd W
NOSS AB Bravallavägen 42
S-182 64 Djursholm
S-182 64 Djursholm (SE)
(54)
METHOD OF PREVENTING CLOGGING A SCREENING MEANS