(19)

(11)

EP 3 635 192 A1

(12)

(43) Date of publication: 15.04.2020 Bulletin 2020/16 (21) Application number: 18803060.5 (22) Date of filing: 15.05.2018

(51) International Patent Classification (IPC):  E04F 13/21(2006.01) E04F 19/00(2006.01) E04F 13/24(2006.01) (86) International application number: PCT/CA2018/000095 (87) International publication number: WO 2018/209423 (22.11.2018 Gazette 2018/47)

(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: KH MA MD TN (30) Priority: 15.05.2017 US 201762506288 P (71) Applicant: Singh, Joshua George Calgary, Alberta T3G 5B2 (CA)	(72) Inventor: Singh, Joshua George Calgary, Alberta T3G 5B2 (CA) (74) Representative: Lees, Kate Jane  Kate Lees Consulting Ltd Office 5 Acorn Business Centre Roberts End, Hanley Swan Malvern, Worcestershire WR8 0DN Malvern, Worcestershire WR8 0DN (GB)