(19)

(11)

EP 0 191 065 A1

(12)

(43) Date of publication: 20.08.1986 Bulletin 1986/34 (21) Application number: 85904063.0 (22) Date of filing: 09.08.1985

(51) International Patent Classification (IPC):  G01L 27/ 00( . ) (86) International application number: PCT/AU1985/000185 (87) International publication number: WO 1986/001292 (27.02.1986 Gazette 1986/05)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 09.08.1984 AU 19840006479 (71) Applicants: BRECKELL, Gregory Joseph Euroka, NSW 2440 (AU) SANDS, Robert Lyne Kempsey, NSW 2440 (AU)	(72) Inventors: BRECKELL, Gregory Joseph Euroka, NSW 2440 (AU) SANDS, Robert Lyne Kempsey, NSW 2440 (AU)