(19)

(11)

EP 3 329 056 A2

(12)

(88) Date of publication A3: 16.03.2017 (43) Date of publication: 06.06.2018 Bulletin 2018/23 (21) Application number: 16747592.0 (22) Date of filing: 29.07.2016

(51) International Patent Classification (IPC):  E02F 7/06(2006.01) E02F 3/92(2006.01) E02F 3/88(2006.01) E02F 3/94(2006.01) (86) International application number: PCT/GB2016/052339 (87) International publication number: WO 2017/021708 (09.02.2017 Gazette 2017/06)

(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 Designated Validation States: MA MD (30) Priority: 31.07.2015 GB 201513606 (71) Applicant: Rotech Group Limited Aberdeen, AB16 6HQ (GB)	(72) Inventors: STEWART, Donald Aberdeen Aberdeenshire AB16 6HQ (GB) STEWART, Kenneth Roderick Aberdeen Aberdeenshire AB16 6HQ (GB) (74) Representative: Moreland, David  Marks & Clerk LLP Aurora 120 Bothwell Street Glasgow G2 7JS Glasgow G2 7JS (GB)