(19)

(11)

EP 0 521 854 A1

(12)

(43) Date of publication: 13.01.1993 Bulletin 1993/02 (21) Application number: 90916176.0 (22) Date of filing: 17.05.1990

(51) International Patent Classification (IPC):  E05B 27/ 08( . ) (86) International application number: PCT/US1990/002811 (87) International publication number: WO 1991/014843 (03.10.1991 Gazette 1991/23)

(84) Designated Contracting States: DE GB NL (30) Priority: 19.03.1990 US 19900495328 (71) Applicant: LEE, David G. Lodi, CA 94240 (US)	(72) Inventor: LEE, David G. Lodi, CA 94240 (US) (74) Representative: Alexander, Thomas Bruce, et al  Boult, Wade & Tennant 27 Furnival Street London EC4A 1PQ London EC4A 1PQ (GB)