(19)

(11)

EP 0 904 505 A1

(12)

(43) Date of publication: 31.03.1999 Bulletin 1999/13 (21) Application number: 97926161.0 (22) Date of filing: 23.06.1997

(51) International Patent Classification (IPC):  F16G 5/ 18( . ) (86) International application number: PCT/IB1997/000763 (87) International publication number: WO 1997/049937 (31.12.1997 Gazette 1998/05)

(84) Designated Contracting States: ES FR GB IT (30) Priority: 24.06.1996 ZA 19960005320 18.07.1996 ZA 19960006110 (71) Applicant: Practical Inventions (Proprietary) Limited Germiston South, Gauteng Province 1401 (ZA)	(72) Inventor: JONKER, Jacobus Pieter Theunis Barend Germiston South 1401, Gauteng Province (ZA) (74) Representative: Pederzini, Paolo  c/o BUGNION S.p.A. Via dei Mille, 19 40121 Bologna 40121 Bologna (IT)