(19)

(11)

EP 0 640 184 A1

(12)

(43) Date of publication: 01.03.1995 Bulletin 1995/09 (21) Application number: 94906980.0 (22) Date of filing: 11.02.1994

(51) International Patent Classification (IPC):  F04B 43/ 12( . ) F04C 2/ 107( . ) (86) International application number: PCT/HU1994/000004 (87) International publication number: WO 1994/018454 (18.08.1994 Gazette 1994/19)

(84) Designated Contracting States: AT CH DE ES FR GB IT LI SE (30) Priority: 12.02.1993 HU 19930000352 (71) Applicant: DIOSGYÖRI SZIVATTYUGYAR KFT. H-3900 Szerencs (HU)	(72) Inventor: FERENCZY, Gyozo H-1124 Budapest (HU) (74) Representative: Patentanwälte Viering, Jentschura & Partner  Postfach 22 14 43 D-80504 München D-80504 München (DE)