(19)

(11)

EP 0 804 720 A1

(12)

(43) Date of publication: 05.11.1997 Bulletin 1997/45 (21) Application number: 96901177.0 (22) Date of filing: 19.01.1996

(51) International Patent Classification (IPC):  G01J 3/ 50( . ) G01J 3/ 46( . ) (86) International application number: PCT/SE1996/000046 (87) International publication number: WO 1996/022512 (25.07.1996 Gazette 1996/34)

(84) Designated Contracting States: DE DK SE (30) Priority: 19.01.1995 SE 19950000165 (71) Applicant: AB WAHLQUISTS VERKSTÄDER S-581 10 Linköping (SE)	(72) Inventor: B DHOLM, Sven S-132 36 Saltsjö-Boo (SE) (74) Representative: Willquist, Bo  Willquist & Partners Patentbyra AB, S:t Larsgatan 23 582 24 Linköping 582 24 Linköping (SE)