(19)

(11)

EP 0 158 648 A1

(12)

(43) Date of publication: 23.10.1985 Bulletin 1985/43 (21) Application number: 84903440.0 (22) Date of filing: 14.09.1984

(51) International Patent Classification (IPC):  B26D 7/ 18( . ) C14B 5/ 00( . ) B26F 1/ 40( . ) (86) International application number: PCT/DK1984/000089 (87) International publication number: WO 1985/001241 (28.03.1985 Gazette 1985/08)

(84) Designated Contracting States: CH DE GB LI SE (30) Priority: 16.09.1983 DK 19830004235 (71) Applicant: TEKNOLOGISK INSTITUT DK-2630 Tastrup (DK)	(72) Inventor: BORGQUIST, Niels, Erik Korsdalsvej 127 DK-2610 Rodovre (DK) (74) Representative: Halldin, Bo  Dr. Ludwig Brann Patentbyra AB P.O. Box 17192 S-104 62 Stockholm S-104 62 Stockholm (SE)