(19)

(11)

EP 0 698 161 A1

(12)

(43) Date of publication: 28.02.1996 Bulletin 1996/09 (21) Application number: 94915074.0 (22) Date of filing: 21.04.1994

(51) International Patent Classification (IPC):  E04C 5/ 18( . ) E04C 5/ 06( . ) E04C 5/ 02( . ) (86) International application number: PCT/EP1994/001232 (87) International publication number: WO 1994/026996 (24.11.1994 Gazette 1994/26)

(84) Designated Contracting States: AT BE CH DE DK FR GB IT LI LU NL SE (30) Priority: 12.05.1993 DE 19934315900 (71) Applicants: ZELLNER, Wilhelm, Dipl.-Ing. D-70771 Leinfelden-Echterdingen (DE) GÖHLER, Bernhard D-71272 Renningen (DE) DETEC Fertigung GmbH D-64521 Gross-Gerau (DE) Andrä, Hans-Peter, Dr.-Ing. D-70597 Stuttgart (DE)	(72) Inventors: ANDRÄ, Hans-Peter D-70597 Stuttgart (DE) ANDRÄ, Wolfhart D-70597 Stuttgart (DE) (74) Representative: Katscher, Helmut, Dipl.-Ing.  Fröbelweg 1 D-64291 Darmstadt D-64291 Darmstadt (DE)