(19)

(11)

EP 0 490 889 A1

(12)

(43) Date of publication: 24.06.1992 Bulletin 1992/26 (21) Application number: 89910050.0 (22) Date of filing: 05.09.1989

(51) International Patent Classification (IPC):  E04B 1/ 38( . ) F16B 7/ 04( . ) E04B 1/ 26( . ) F16B 15/ 00( . ) (86) International application number: PCT/AU1989/000380 (87) International publication number: WO 1991/003653 (21.03.1991 Gazette 1991/07)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (71) Applicant: DOOLE, Kevin, Graham Closeburn, QLD 4520 (AU)	(72) Inventor: DOOLE, Kevin, Graham Closeburn, QLD 4520 (AU) (74) Representative: Patentanwälte Wenzel & Kalkoff  Postfach 73 04 66, Grubesallee 26 D-22124 Hamburg D-22124 Hamburg (DE)