(19)

(11)

EP 0 832 390 A1

(12)

(43) Date of publication: 01.04.1998 Bulletin 1998/14 (21) Application number: 96914291.0 (22) Date of filing: 17.05.1996

(51) International Patent Classification (IPC):  F16L 55/ 165( . ) F16L 55/ 26( . ) (86) International application number: PCT/GB1996/001176 (87) International publication number: WO 1996/041986 (27.12.1996 Gazette 1997/04)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 10.06.1995 GB 19950011834 31.07.1995 US 19950509648 (71) Applicant: SOUND PIPE LIMITED Grand Turk (TC)	(74) Representative: Denmark, James  Bailey, Walsh & Co. 5 York Place Leeds LS1 2SD Yorkshire Leeds LS1 2SD Yorkshire (GB)