(19)

(11)

EP 0 029 062 A1

(12)

(43) Date of publication: 27.05.1981 Bulletin 1981/21 (21) Application number: 80901139.0 (22) Date of filing: 21.05.1980

(51) International Patent Classification (IPC):  H02P 23/ 00( . ) (86) International application number: PCT/US1980/000604 (87) International publication number: WO 1980/002895 (24.12.1980 Gazette 1980/29)

(84) Designated Contracting States: FR (30) Priority: 25.05.1979 US 19790042608 05.03.1980 US 19800127440 (71) Applicant: THE SCOTT & FETZER COMPANY Cleveland, OH 44135 (US)	(72) Inventor: LEE, Maw H. Broadview Heights, OH 44147 (US)