(19)
(11) EP 4 205 094 A1

(12)

(43) Date of publication:
05.07.2023 Bulletin 2023/27

(21) Application number: 21745386.9

(22) Date of filing: 06.07.2021
(51) International Patent Classification (IPC): 
G08B 7/06(2006.01)
(52) Cooperative Patent Classification (CPC):
G08B 7/062; G08B 7/066
(86) International application number:
PCT/GB2021/051709
(87) International publication number:
WO 2022/043650 (03.03.2022 Gazette 2022/09)
(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: 28.08.2020 GB 202013543
13.04.2021 GB 202105229

(71) Applicant: Helix Corporate Management Limited
Bushey Hertfordshire WD23 4RA (GB)

(72) Inventors:
  • CASSIDY, John
    Hertfordshire WD23 4RA (GB)
  • ANDERSON, Lisa
    Hertfordshire EN4 8EG (GB)

(74) Representative: Barker Brettell LLP 
100 Hagley Road Edgbaston
Birmingham, West Midlands B16 8QQ
Birmingham, West Midlands B16 8QQ (GB)

   


(54) SAFETY DEVICE, DOOR, FIRE SAFETY SYSTEMS, AND METHOD OF INDICATING THE STATUS OF A DOOR, AND IMPROVING FIRE SAFETY