(19)

(11)

EP 0 890 003 A1

(12)

(43) Date of publication: 13.01.1999 Bulletin 1999/02 (21) Application number: 97916841.0 (22) Date of filing: 20.03.1997

(51) International Patent Classification (IPC):  E03D 9/ 02( . ) (86) International application number: PCT/US1997/004417 (87) International publication number: WO 1997/036065 (02.10.1997 Gazette 1997/42)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE (30) Priority: 26.03.1996 GB 19960006275 (71) Applicant: S.C. JOHNSON & SON, INC. Racine, Wisconsin 53403 (US)	(72) Inventors: THOMPSON, Guy, R. Southwood Farnborough Hants GU14 0PH (GB) CAMPBELL, Stuart, J. Sunbury on Thames Middlesex TW16 7BD (GB) (74) Representative: Jones, Alan John, et al  CARPMAELS & RANSFORD 43 Bloomsbury Square London, WC1A 2RA London, WC1A 2RA (GB)