(19)
(11) EP 3 527 801 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
07.04.2021 Bulletin 2021/14

(45) Mention of the grant of the patent:
27.01.2021 Bulletin 2021/04

(21) Application number: 18212789.4

(22) Date of filing: 14.12.2018
(51) International Patent Classification (IPC): 
F02C 7/28(2006.01)
F16J 15/44(2006.01)
 F01D 11/00(2006.01)

(54)

PRESSURE BALANCED SECONDARY SEAL

DRUCKAUSGEGLICHENE SEKUNDÄRDICHTUNG

JOINT SECONDAIRE À PRESSION ÉQUILIBRÉE

(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

(30) Priority: 15.02.2018 US 201815897748

(43) Date of publication of application:
21.08.2019 Bulletin 2019/34

(73) Proprietor: Raytheon Technologies Corporation
Farmington, CT 06032 (US)

(72) Inventors:
  • SONOKAWA, Masayoshi
    West Hartford, CT Connecticut 06117 (US)
  • MCGRATH, Rachel A.
    Hartford, CT Connecticut 06106 (US)

(74) Representative: Dehns 
St. Bride's House 10 Salisbury Square
London EC4Y 8JD
London EC4Y 8JD (GB)


(56) References cited: : 
WO-A1-2015/105574
US-A1- 2015 337 674
 US-A1- 2009 121 441
US-B2- 9 316 119
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).