(19)

(11)

EP 0 351 416 A1

(12)

(43) Date of publication: 24.01.1990 Bulletin 1990/04 (21) Application number: 88902977.0 (22) Date of filing: 18.03.1988

(51) International Patent Classification (IPC):  B06B 3/ 00( . ) B08B 3/ 12( . ) (86) International application number: PCT/SE1988/000141 (87) International publication number: WO 1988/006927 (22.09.1988 Gazette 1988/21)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 18.03.1987 SE 19870001117 (71) Applicant: McQueen, Douglas S-412 65 Göteberg (SE)	(72) Inventor: McQueen, Douglas S-412 65 Göteberg (SE) (74) Representative: Westman, Börje, et al  Göteborgs Patentbyra AB Box 5005 S-402 21 Göteborg S-402 21 Göteborg (SE)