(19)

(11)

EP 0 469 063 A1

(12)

(43) Date of publication: 05.02.1992 Bulletin 1992/06 (21) Application number: 90907576.0 (22) Date of filing: 16.04.1990

(51) International Patent Classification (IPC):  A01M 1/ 20( . ) A61L 9/ 03( . ) (86) International application number: PCT/US1990/002066 (87) International publication number: WO 1990/012644 (01.11.1990 Gazette 1990/25)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 21.04.1989 US 19890342197 (71) Applicant: S.C. JOHNSON & SON, INC. Racine, Wisconsin 53403-5011 (US)	(72) Inventors: DEMAREST, Scott, W. Racine, WI 53404 (US) MARTIN, John Racine, WI 53402 (US) (74) Representative: Ruschke, Hans Edvard, Dipl.-Ing., et al  Patentanwälte Ruschke & Partner Pienzenauerstrasse 2 D-81679 München D-81679 München (DE)