(19)

(11)

EP 0 681 753 A1

(12)

(43) Date of publication: 15.11.1995 Bulletin 1995/46 (21) Application number: 94905624.0 (22) Date of filing: 31.01.1994

(51) International Patent Classification (IPC):  H05F 3/ 04( . ) H02G 13/ 00( . ) (86) International application number: PCT/AU1994/000040 (87) International publication number: WO 1994/017578 (04.08.1994 Gazette 1994/18)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 29.01.1993 AU 1993PL07030 (71) Applicant: INTERNATIONAL PROTECTION CONSULTANTS PTY LTD Hobart, TAS 7001 (AU)	(72) Inventors: GUMLEY, John Richard Hobart, TAS 7001 (AU) GUMLEY, Stephen John Hobart, TAS 7001 (AU) (74) Representative: Findlay, Alice Rosemary  Lloyd Wise, Tregear & Co. Norman House 105-109 Strand London WC2R 0AE London WC2R 0AE (GB)