METHOD OF PROTECTING A ROOT OF A BLADE FOR A GAS TURBINE ENGINE, METHOD OF REFURBISHING SAID BLADE AND CORRESPONDING BLADE WITH PROTECTIVE LAYER

(19)

(11)

EP 3 060 361 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:
	17.02.2021 Bulletin 2021/07

(21)	Application number: 14856341.4

(22)	Date of filing: 15.10.2014

(51)

International Patent Classification (IPC):

F01D 5/30^(2006.01)

F01D 5/28^(2006.01)

(86)	International application number:
	PCT/US2014/060727

(87)	International publication number:
	WO 2015/061109 (30.04.2015 Gazette 2015/17)

(54)

METHOD OF PROTECTING A ROOT OF A BLADE FOR A GAS TURBINE ENGINE, METHOD OF REFURBISHING SAID BLADE AND CORRESPONDING BLADE WITH PROTECTIVE LAYER

VERFAHREN ZUM SCHÜTZEN EINES SCHAUFELFUSSES EINES GASTURBINENTRIEBWERKS, RENOVIERUNGSVERFAHREN DER ENTSPRECHENDEN SCHAUFEL UND SCHAUFEL MIT SCHUTZSCHICHT

PROCÉDÉ DE PROTECTION D'UNE RACINE D'AUBE, PROCÉDÉ DE REMISE À NEUF DE CETTE AUBE ET AUBE POURVUE D'UNE COUCHE DE PROTECTION

(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:

24.10.2013 US 201361895303 P

(43)	Date of publication of application:
	31.08.2016 Bulletin 2016/35

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

(72)	Inventor:
	MANTEL, Blake M. Newington, Connecticut 06111 (US)

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

(56)

References cited: :

EP-A1- 0 367 958
CH-A- 423 431
US-A- 4 417 854
US-A1- 2004 261 914
US-A1- 2007 087 117
US-A1- 2010 254 818
US-A1- 2013 247 586

EP-A1- 2 468 434
US-A- 4 207 029
US-A- 4 820 126
US-A1- 2006 260 125
US-A1- 2008 229 567
US-A1- 2012 082 551

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).