(19)

(11)

EP 0 616 673 A1

(12)

(43) Date of publication: 28.09.1994 Bulletin 1994/39 (21) Application number: 93911644.0 (22) Date of filing: 24.08.1992

(51) International Patent Classification (IPC):  F23G 7/ 06( . ) (86) International application number: PCT/SE1992/000574 (87) International publication number: WO 1993/012381 (24.06.1993 Gazette 1993/15)

(84) Designated Contracting States: DE ES FR GB IT NL SE (30) Priority: 19.12.1991 SE 19910003786 (71) Applicant: HEED, Björn S-412 61 Göteborg (SE)	(72) Inventor: HEED, Björn S-412 61 Göteborg (SE) (74) Representative: Lindberg, Klas Valter Bo, et al  AWAPATENT AB, Södra Hamngatan 37-41, P.O. Box 11394 S-404 28 Göteborg S-404 28 Göteborg (SE)