(19)

(11)

EP 0 912 133 A1

(12)

(43) Date of publication: 06.05.1999 Bulletin 1999/18 (21) Application number: 97929230.0 (22) Date of filing: 20.06.1997

(51) International Patent Classification (IPC):  A47L 13/ 60( . ) (86) International application number: PCT/EP1997/003222 (87) International publication number: WO 1997/049327 (31.12.1997 Gazette 1998/05)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 21.06.1996 GB 19960013050 (71) Applicant: Bowman, David Alan York YO6 2LW (GB)	(72) Inventor: Bowman, David Alan York YO6 2LW (GB) (74) Representative: Weller, Wolfgang, Dr.rer.nat.  Witte, Weller & Partner, Patentanwälte, Rotebühlstrasse 121 70178 Stuttgart 70178 Stuttgart (DE)