(19)

(11)

EP 0 188 430 A1

(12)

(43) Date of publication: 30.07.1986 Bulletin 1986/31 (21) Application number: 84904203.0 (22) Date of filing: 01.11.1984

(51) International Patent Classification (IPC):  E04B 1/ 70( . ) F24F 13/ 14( . ) F15D 1/ 00( . ) F24F 13/ 15( . ) (86) International application number: PCT/SE1984/000371 (87) International publication number: WO 1985/002008 (09.05.1985 Gazette 1985/11)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 03.11.1983 SE 19830006051 (71) Applicant: REGENAIR AB S-734 00 Hallstahammar (SE)	(72) Inventor: STENFORS, Erik S-734 00 Hallstahammar (SE)