(19)

(11)

EP 0 707 702 A1

(12)

(43) Date of publication: 24.04.1996 Bulletin 1996/17 (21) Application number: 94914538.0 (22) Date of filing: 06.05.1994

(51) International Patent Classification (IPC):  F28F 13/ 12( . ) F28G 1/ 06( . ) F28F 19/ 00( . ) (86) International application number: PCT/IE1994/000024 (87) International publication number: WO 1994/027106 (24.11.1994 Gazette 1994/26)

(84) Designated Contracting States: AT BE CH DE DK FR GB IT LI NL (30) Priority: 07.05.1993 IE 19930000345 (71) Applicant: ENVIRECON SERVICES LIMITED Dublin 2 (IE)	(72) Inventors: SPENCER, Robert, John Dublin 4 (IE) GLYNN, John Dublin 10 (IE)