(19)

(11)

EP 0 447 480 A1

(12)

(43) Date of publication: 25.09.1991 Bulletin 1991/39 (21) Application number: 90900921.0 (22) Date of filing: 05.12.1989

(51) International Patent Classification (IPC):  B08B 9/ 023( . ) B08B 15/ 02( . ) (86) International application number: PCT/GB1989/001450 (87) International publication number: WO 1990/006190 (14.06.1990 Gazette 1990/14)

(84) Designated Contracting States: AT BE DE FR IT NL SE (30) Priority: 08.12.1988 GB 19880028693 (71) Applicant: GWILLIAM, Graham James Coleford Gloucestershire GL14 2PQ (GB)	(72) Inventor: GWILLIAM, Graham James Coleford Gloucestershire GL14 2PQ (GB) (74) Representative: Higgins, Michael Roger, et al  A.R. Davies & Co. 27, Imperial Square Cheltenham Glos. GL50 1RQ Cheltenham Glos. GL50 1RQ (GB)