(19)

(11)

EP 0 616 676 A1

(12)

(43) Date of publication: 28.09.1994 Bulletin 1994/39 (21) Application number: 92918953.0 (22) Date of filing: 11.09.1992

(51) International Patent Classification (IPC):  F24H 1/ 26( . ) F24H 9/ 00( . ) (86) International application number: PCT/IE1992/000008 (87) International publication number: WO 1993/013366 (08.07.1993 Gazette 1993/16)

(84) Designated Contracting States: GB IE (30) Priority: 20.12.1991 IE 19910004471 (71) Applicant: ALLEY ENTERPRISES LIMITED Birr, County Offaly (IE)	(72) Inventor: GRANT, Stephen, William, John County Offaly (IE) (74) Representative: O'Brien, John Augustine, et al  Cruickshank & Co. 1 Holles Street Dublin 2 Dublin 2 (IE)