(19)

(11)

EP 3 807 572 A1

(12)

(43) Date of publication: 21.04.2021 Bulletin 2021/16 (21) Application number: 19734604.2 (22) Date of filing: 12.06.2019

(51) International Patent Classification (IPC):  F21S 2/00(2016.01) G08B 5/36(2006.01) F21W 111/00(2006.01) F21V 23/06(2006.01) G08B 7/06(2006.01) (86) International application number: PCT/US2019/036761 (87) International publication number: WO 2019/241382 (19.12.2019 Gazette 2019/51)

(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: 12.06.2018 US 201816006158 (71) Applicant: Banner Engineering Corporation Minneapolis, MN 55441 (US)	(72) Inventors: DOLEZALEK, Charles Stacy, MN 55079 (US) PIKKARAINE, Darrell, Raymond Elk River, MN 55330 (US) APONTE, Maximilian, John Shakopee, MN 55379 (US) SCHUMACHER, Neil, A. Plymouth, MN 55442 (US) (74) Representative: Torredimare, Luca  Barzanò & Zanardo Milano S.p.A. Corso Vittorio Emanuele II, 61 10128 Torino 10128 Torino (IT)