(19)

(11)

EP 0 131 008 A1

(12)

(43) Date of publication: 16.01.1985 Bulletin 1985/03 (21) Application number: 84900264.0 (22) Date of filing: 23.12.1983

(51) International Patent Classification (IPC):  F16B 7/ 20( . ) F16B 12/ 40( . ) (86) International application number: PCT/AU1983/000198 (87) International publication number: WO 1984/002560 (05.07.1984 Gazette 1984/16)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 23.12.1982 AU 19820007409 (71) Applicant: POLYMOD AUSTRALIA PTY. LTD. South Caulfield, VIC 3162 (AU)	(72) Inventor: BALLIS, John, Harlow Brighton, VIC 3186 (AU) (74) Representative: Schmitz, Jean-Marie  Dennemeyer & Associates Sàrl P.O. Box 1502 L-1015 Luxembourg L-1015 Luxembourg (LU)