(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