(19)

(11)

EP 0 502 025 A1

(12)

(43) Date of publication: 09.09.1992 Bulletin 1992/37 (21) Application number: 90917145.0 (22) Date of filing: 13.11.1990

(51) International Patent Classification (IPC):  E05G 1/ 00( . ) E05G 1/ 06( . ) (86) International application number: PCT/NL1990/000170 (87) International publication number: WO 1991/007562 (30.05.1991 Gazette 1991/12)

(84) Designated Contracting States: AT CH DE ES FR GB IT LI NL SE (30) Priority: 13.11.1989 NL 19890002794 (71) Applicant: RIJLAARSDAM, Cornelis Elizabeth NL-2405 CJ Alphen a/d Rijn (NL)	(72) Inventor: RIJLAARSDAM, Cornelis Elizabeth NL-2405 CJ Alphen a/d Rijn (NL) (74) Representative: Kooy, Leendert Willem, et al  OCTROOIBUREAU VRIESENDORP & GAADE P.O. Box 266 NL-2501 AW The Hague NL-2501 AW The Hague (NL)