(19)

(11)

EP 0 782 502 A1

(12)

(43) Date of publication: 09.07.1997 Bulletin 1997/28 (21) Application number: 96925000.0 (22) Date of filing: 19.07.1996

(51) International Patent Classification (IPC):  B29D 23/ 00( . ) F16L 11/ 24( . ) F16L 11/ 08( . ) (86) International application number: PCT/GB1996/001733 (87) International publication number: WO 1997/003815 (06.02.1997 Gazette 1997/07)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GR IE IT LI NL PT SE (30) Priority: 21.07.1995 GB 19950015012 (71) Applicant: DUNLOP LIMITED London SW1P 2PL (GB)	(72) Inventor: RIPLEY, Brian Cramlington, Northumberland JL23 7XA (GB) (74) Representative: Badger, John Raymond  BTR Group Intellectual Property, Knights House, 2 Parade Sutten Coldfield, West Midlands B72 1PH Sutten Coldfield, West Midlands B72 1PH (GB)