(19)

(11)

EP 0 276 217 A1

(12)

(43) Date of publication: 03.08.1988 Bulletin 1988/31 (21) Application number: 86905884.0 (22) Date of filing: 30.09.1986

(51) International Patent Classification (IPC):  A62B 7/ 00( . ) A62B 17/ 00( . ) A62B 7/ 14( . ) (86) International application number: PCT/GB1986/000581 (87) International publication number: WO 1987/001949 (09.04.1987 Gazette 1987/08)

(84) Designated Contracting States: AT BE CH DE FR IT LI LU NL SE (30) Priority: 01.10.1985 GB 19850024181 21.01.1986 GB 19860001325 04.02.1986 GB 19860002676 29.05.1986 GB 19860013002 02.07.1986 GB 19860016202 (71) Applicant: INTERTEK LIMITED Douglas, Isle-of-Man (GB)	(72) Inventor: STEWART, John, Stewart, Simpson Wigan Lancashire (GB) (74) Representative: Thomson, Paul Anthony  Potts, Kerr & Co. 15, Hamilton Square Birkenhead Merseyside L41 6BR Birkenhead Merseyside L41 6BR (GB)