(19)

(11)

EP 0 099 354 A1

(12)

(43) Date of publication: 01.02.1984 Bulletin 1984/05 (21) Application number: 82900287.0 (22) Date of filing: 26.01.1982

(51) International Patent Classification (IPC):  F16L 3/ 02( . ) F16L 3/ 223( . ) F16L 3/ 10( . ) (86) International application number: PCT/GB1982/000020 (87) International publication number: WO 1983/002691 (04.08.1983 Gazette 1983/18)

(84) Designated Contracting States: DE FR NL SE (71) Applicant: HAYES, Derek Suffolk NR35 1NF (GB)	(72) Inventor: HAYES, Derek Suffolk NR35 1NF (GB)