(19)

(11)

EP 0 686 292 A1

(12)

(43) Date of publication: 13.12.1995 Bulletin 1995/50 (21) Application number: 94912985.0 (22) Date of filing: 25.02.1994

(51) International Patent Classification (IPC):  G07D 7/ 00( . ) G07D 7/ 12( . ) G07F 7/ 08( . ) G07D 7/ 04( . ) G07D 11/ 00( . ) G07F 19/ 00( . ) (86) International application number: PCT/US1994/001972 (87) International publication number: WO 1994/019773 (01.09.1994 Gazette 1994/20)

(84) Designated Contracting States: AT DE ES NL (30) Priority: 25.02.1993 US 19930022145 02.07.1993 WO 1993US06313 (71) Applicant: TECHNITROL, INC. Trevose, Pennsylvania 19053 (US)	(72) Inventor: McINERNY, George, P. Langhorne, PA 19047 (US) (74) Representative: Newby, Martin John, et al  J.Y. & G.W. Johnson Furnival House 14-18 High Holborn London WC1V 6DE London WC1V 6DE (GB)