(19)
(11)
EP 0 491 776 A1
(12)
(43)
Date of publication:
01.07.1992
Bulletin 1992/27
(21)
Application number:
90913561.0
(22)
Date of filing:
03.09.1990
(51)
International Patent Classification (IPC):
A01C
3/
06
( . )
(86)
International application number:
PCT/SE1990/000560
(87)
International publication number:
WO 1991/003150
(
21.03.1991
Gazette 1991/07)
(84)
Designated Contracting States:
DE DK FR NL
(30)
Priority:
04.09.1989
SE 19890002909
(71)
Applicant:
JORDBRUKSTEKNISKA INSTITUTET
S-750 07 Uppsala (SE)
(72)
Inventor:
ÖRJAN, Andersson
S-790 60 Vikarbyn (SE)
(74)
Representative:
Bjellman, Lennart Olov Henrik
DR. LUDWIG BRANN PATENTBYRA AB Box 1344
S-751 43 Uppsala
S-751 43 Uppsala (SE)
(54)
A CONSTANT DISCHARGE CONTROL DEVICE FOR A SOLID MANURE SPREADER