(19)

(11)

EP 0 828 595 A1

(12)

(43) Date of publication: 18.03.1998 Bulletin 1998/12 (21) Application number: 96917843.0 (22) Date of filing: 29.05.1996

(51) International Patent Classification (IPC):  B28B 7/ 00( . ) B28B 7/ 24( . ) (86) International application number: PCT/US1996/007869 (87) International publication number: WO 1996/038277 (05.12.1996 Gazette 1997/01)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 01.06.1995 US 19950485103 (71) Applicant: COLUMBIA MACHINE, INC. Vancouver, WA 98661-7795 (US)	(72) Inventor: JOHNSTON, Llewellyn, L. Vancouver, WA 98686 (US) (74) Representative: Lee, Nicholas John  Haseltine Lake & Co., Imperial House, 15-19 Kingsway London WC2B 6UD London WC2B 6UD (GB)