EP1512841A3

Methods and apparatus to reduce seal rubbing within gas turbine engines

Abstract

A seal assembly for a gas turbine engine (10) includes a first stage disk (30) and a second stage disk (32), a disk retainer (53), and an interstage seal assembly (50) extending between the first and second stage disks. The interstage seal assembly includes a radially outer shell (54) extending radially outwardly from a web portion (58). The outer shell includes an upstream arm (60) and a downstream arm (62) extending outwardly from the outer shell, the disk retainer between the outer shell upstream arm and the first stage disk, the downstream arm coupled to the second stage disk.

EP1512841A3, drawing sheet 1 — Sheet 1 of 1

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Term ended

Projected expiry passed 1 September 2024, 2.1 years ago.

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Citations
Document	Relation	Office	Cited during
EP0202188A1	Cites	European Patent Office (EPO)	Search report
US2002187046A1	Cites	United States of America	Search report
US3842595A	Cites	United States of America	Search report
US4582467A	Cites	United States of America	Search report
US5217348A	Cites	United States of America	Search report
US5288210A	Cites	United States of America	Search report
US6267553B1	Cites	United States of America	Search report

8 members in 4 offices; this record represents the family

This recordMember, by publication datePriority claim

Priority claims2

Priority claims
Document	Office	Kind	Date
653337	United States of America	–	2003-09-02
65333703	United States of America	A	2003-09-02

Members8

Family members, oldest first
Document	Office	Kind
US2005047910A1	United States of America	A1	2005-03-03
EP1512841A2	European Patent Office (EPO)	A2	2005-03-09
JP2005098297A	Japan	A	2005-04-14
CN1611754A	China	A	2005-05-04
US6899520B2	United States of America	B2	2005-05-31
CN100404818C	China	C	2008-07-23
EP1512841A3This record	European Patent Office (EPO)	A3	2012-07-25
EP1512841B1	European Patent Office (EPO)	B1	2014-03-19

45 legal events, as 4 offices reported them to INPADOC

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	Event	Code	Office
2018-08-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2018-07-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2018-07-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2018-06-29	Notification of lapseLapsedST	ST	FR
2018-05-23	Gb: european patent ceased through non-payment of renewal feeCeasedGBPC	GBPC	EP
2018-04-04	Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal feeWithdrawnR119	R119	DE
2017-01-31	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2016-11-30	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2016-10-31	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2016-09-26	Fee paymentPLFP	PLFP	FR
2015-04-02	No opposition filed against granted patent, or epo opposition proceedings concluded without decisionGrantedR097	R097	DE
2015-02-25	No opposition filedOpposition26N	26N	EP
2015-01-23	No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE	PLBE	EP
2015-01-23	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA	STAA	EP
2014-12-22	No opposition filed against granted patent, or epo opposition proceedings concluded without decisionGrantedR097	R097	DE
2014-04-24	Dpma publication of mentioned ep patent grantGrantedR096	R096	DE
2014-03-19	Designated contracting statesAK	AK	EP
2014-03-19	European patent grantedGrantedFG4D	FG4D	GB
2014-02-14	(expected) grantORIGINAL CODE: 0009210GRAA	GRAA	EP
2014-02-08	Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS	GRAS	EP
2013-11-06	Intention to grant announcedINTG	INTG	EP
2013-10-11	Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP	GRAP	EP
2013-10-09	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2013-10-09	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2013-10-09	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2013-09-25	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2013-09-25	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2013-09-25	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2013-04-03	Designation fees paidAKX	AKX	EP
2013-03-20	First examination report despatched17Q	17Q	EP
2013-03-06	Request for examination filed17P	17P	EP
2012-07-25	Designated contracting statesAK	AK	EP
2012-07-25	Request for extension of the european patentAX	AX	EP
2012-07-25	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2012-07-25	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2012-07-25	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2012-06-22	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL	EP
2005-04-06	Information on inventor provided before grant (corrected)RIN1	RIN1	EP
2005-04-06	Information on inventor provided before grant (corrected)RIN1	RIN1	EP
2005-04-06	Information on inventor provided before grant (corrected)RIN1	RIN1	EP
2005-04-06	Information on inventor provided before grant (corrected)RIN1	RIN1	EP
2005-04-06	Information on inventor provided before grant (corrected)RIN1	RIN1	EP
2005-03-09	Designated contracting statesAK	AK	EP
2005-03-09	Request for extension of the european patentAX	AX	EP
2005-01-21	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP

Methods and apparatus to reduce seal rubbing within gas turbine engines

Abstract

Term

Priority claims2

Members8

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Titles3

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Designated states33