(19)

(11)

EP 0 241 463 A1

(12)

(43) Date of publication: 21.10.1987 Bulletin 1987/43 (21) Application number: 86900023.0 (22) Date of filing: 11.12.1985

(51) International Patent Classification (IPC):  E04B 1/ 04( . ) (86) International application number: PCT/AU1985/000312 (87) International publication number: WO 1986/003535 (19.06.1986 Gazette 1986/13)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 11.12.1984 AU 19840008504 (71) Applicant: CARNEY, Jack James Southport, QLD 4217 (AU)	(72) Inventor: CARNEY, Jack James Southport, QLD 4217 (AU)