(19)

(11)

EP 2 044 274 A1

(12)

(43) Date of publication: 08.04.2009 Bulletin 2009/15 (21) Application number: 07733338.3 (22) Date of filing: 22.06.2007

(51) International Patent Classification (IPC):  E04G 1/15(2006.01) E04G 5/14(2006.01) (86) International application number: PCT/GB2007/002343 (87) International publication number: WO 2007/148112 (27.12.2007 Gazette 2007/52)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 23.06.2006 GB 0612484 (71) Applicant: Benfig Systems Limited 7 Wynn Avenue Rhosddu, Wrexham LL11 2EP (GB)	(72) Inventors: BAGNALL, Neville Wrexham LL11 2EP (GB) MORGAN, Keith Wrexham LL11 2EP (GB) (74) Representative: Evans, Jacqueline Gail Victoria  Greaves Brewster LLP Indigo House Cheddar Business Park Wedmore Road Cheddar BS27 3EB Cheddar BS27 3EB (GB)