(19)

(11)

EP 0 878 114 A1

(12)

(43) Date of publication: 18.11.1998 Bulletin 1998/47 (21) Application number: 96900490.0 (22) Date of filing: 15.01.1996

(51) International Patent Classification (IPC):  H05B 37/ 02( . ) H05B 41/ 36( . ) (86) International application number: PCT/CA1996/000035 (87) International publication number: WO 1996/022668 (25.07.1996 Gazette 1996/34)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 16.01.1995 CA 19952140559 17.01.1995 US 19950373156 (71) Applicant: Negawatt Technologies, Inc. Edmonton, Alberta T5S 1S7 (CA)	(72) Inventor: Baker, James Allan Edmonton, Alberta T6L 4Z4 (CA) (74) Representative: McCallum, William Potter, et al  Cruikshank & Fairweather 19 Royal Exchange Square Glasgow G1 3AE Scotland Glasgow G1 3AE Scotland (GB)