(19)

(11)

EP 0 022 864 A1

(12)

(43) Date of publication: 28.01.1981 Bulletin 1981/04 (21) Application number: 80901081.0 (22) Date of filing: 08.01.1980

(51) International Patent Classification (IPC):  F04D 29/ 66( . ) (86) International application number: PCT/SE1980/000009 (87) International publication number: WO 1980/001501 (24.07.1980 Gazette 1980/17)

(84) Designated Contracting States: FR (30) Priority: 10.01.1979 SE 19790000213 (71) Applicant: HELLSTRÖM, Per-Anders S-412 65 Göteborg (SE)	(72) Inventor: HELLSTRÖM, Per-Anders S-412 65 Göteborg (SE)