(19)

(11)

EP 2 823 235 A1

(12)

(43) Date of publication: 14.01.2015 Bulletin 2015/03 (21) Application number: 13718416.4 (22) Date of filing: 08.03.2013

(51) International Patent Classification (IPC):  F24F 13/22(2006.01) E04B 1/70(2006.01) (86) International application number: PCT/NO2013/050048 (87) International publication number: WO 2013/133721 (12.09.2013 Gazette 2013/37)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 09.03.2012 NO 20120286 (71) Applicant: Gunnvald Harila Limited 9291 Tromsø (NO)	(72) Inventor: HARILA, Gunnvald N-9291 Tromsø (NO) (74) Representative: Fluge, Per Roald  c/o Fluges patent as Postboks 27 1629 Gamle Fredrikstad 1629 Gamle Fredrikstad (NO)