(19)

(11)

EP 0 710 067 A1

(12)

(43) Date of publication: 08.05.1996 Bulletin 1996/19 (21) Application number: 94919007.0 (22) Date of filing: 07.07.1994

(51) International Patent Classification (IPC):  A01B 73/ 06( . ) A01D 34/ 66( . ) (86) International application number: PCT/IE1994/000034 (87) International publication number: WO 1995/001715 (19.01.1995 Gazette 1995/04)

(84) Designated Contracting States: BE DE DK FR GB IE NL (30) Priority: 07.07.1993 IE 19930000506 (71) Applicant: HCS (IRELAND) LIMITED County Limerick (IE)	(72) Inventors: DOHERTY, James Noel Markby Adare, County Limerick (IE) BIBBY, Jonathan Georghe Pringle Adare, County Limerick (IE) (74) Representative: Gorman, Francis Fergus  F. F. Gorman & Co. 54, Merrion Square Dublin 2 Dublin 2 (IE)