(19)

(11)

EP 0 179 793 A1

(12)

(43) Date of publication: 07.05.1986 Bulletin 1986/19 (21) Application number: 85901662.0 (22) Date of filing: 01.04.1985

(51) International Patent Classification (IPC):  F04B( . ) F04B 47/ 12( . ) F04B 47/ 04( . ) (86) International application number: PCT/SE1985/000151 (87) International publication number: WO 1985/004691 (24.10.1985 Gazette 1985/23)

(84) Designated Contracting States: DE FR GB IT NL (30) Priority: 09.04.1984 SE 19840001969 (71) Applicant: ISAKSSON, Evald S-392 47 Kalmar (SE)	(72) Inventor: ISAKSSON, Evald S-392 47 Kalmar (SE) (74) Representative: Nydell, Peder  Nydells Patentbyra Hägnen 2573 S-380 30 Rockneby S-380 30 Rockneby (SE)