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EP 0 365 661 A1

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(43) Date of publication: 02.05.1990 Bulletin 1990/18 (21) Application number: 89905661.0 (22) Date of filing: 03.05.1989

(51) International Patent Classification (IPC):  F16L 37/ 08( . ) F16L 37/ 36( . ) F16L 37/ 32( . ) (86) International application number: PCT/EP1989/000491 (87) International publication number: WO 1989/011059 (16.11.1989 Gazette 1989/27)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI NL SE (30) Priority: 05.05.1988 DE 19883815350 24.06.1988 DE 19880008148U (71) Applicants: Weh, Erwin D-89257 Illertissen (DE) WEH, Wolfgang D-89257 Illertissen (DE)	(72) Inventors: Weh, Erwin D-89257 Illertissen (DE) WEH, Wolfgang D-89257 Illertissen (DE) (74) Representative: Reinhard - Skuhra - Weise & Partner  Postfach 44 01 51 D-80750 München D-80750 München (DE)