(19)

(11)

EP 0 023 520 A1

(12)

(43) Date of publication: 11.02.1981 Bulletin 1981/06 (21) Application number: 80900462.0 (22) Date of filing: 04.02.1980

(51) International Patent Classification (IPC):  H01H 43/ 00( . ) (86) International application number: PCT/US1980/000161 (87) International publication number: WO 1980/001737 (21.08.1980 Gazette 1980/19)

(84) Designated Contracting States: CH DE FR GB LU SE (30) Priority: 08.02.1979 US 19790010501 (71) Applicant: VON GUNTEN, Lee L. Arlington Heights, IL 60004 (US)	(72) Inventor: VON GUNTEN, Lee L. Arlington Heights, IL 60004 (US)