(19)
(11) EP 4 420 221 A1

(12)

(43) Date of publication:
28.08.2024 Bulletin 2024/35

(21) Application number: 22797450.8

(22) Date of filing: 19.10.2022
(51) International Patent Classification (IPC): 
H02K 5/124(2006.01)
F16J 15/34(2006.01)
H02K 9/08(2006.01)
F04D 25/06(2006.01)
(52) Cooperative Patent Classification (CPC):
F16J 15/3404; F16J 15/3412; F16J 15/3492; H02K 5/124
(86) International application number:
PCT/GB2022/052665
(87) International publication number:
WO 2023/067336 (27.04.2023 Gazette 2023/17)
(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 19.10.2021 US 202163257273 P
13.05.2022 GB 202207068

(71) Applicant: John Crane UK Limited
Slough, Berkshire SL1 4LU (GB)

(72) Inventor:
  • BARLOW, Graham
    Slough, SL1 4LU (GB)

(74) Representative: Morton, Matthew David et al
Mathys & Squire The Shard 32 London Bridge Street
London SE1 9SG
London SE1 9SG (GB)

   


(54) PUMPING SEAL FOR ROTATING MACHINES