(19)

(11)

EP 2 188 469 A2

(12)

(88) Date of publication A3: 23.04.2009 (43) Date of publication: 26.05.2010 Bulletin 2010/21 (21) Application number: 08776205.0 (22) Date of filing: 14.07.2008

(51) International Patent Classification (IPC):  E04H 12/18(2006.01) F21V 21/36(2006.01) (86) International application number: PCT/GB2008/050570 (87) International publication number: WO 2009/007757 (15.01.2009 Gazette 2009/03)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 12.07.2007 GB 0713514 (71) Applicant: Crossley Evans&Judd Ltd Riccall Yorkshire York YO19 6PN (GB)	(72) Inventor: WARREN, John York, Yorkshire YO19 6PN (GB) (74) Representative: Harrison Goddard Foote  Belgrave Hall Belgrave Street Leeds LS2 8DD Leeds LS2 8DD (GB)