EP0549368A3 - - Google Patents

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Publication number: EP0549368A3
Authority: EP; European Patent Office
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP19920311818

Other versions

EP0549368B1 (en

EP0549368A2 (en

Inventor

Wataru Matsutani

Junichi Kagawa

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Niterra Co Ltd

Original Assignee

NGK Spark Plug Co Ltd

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1991-12-27

Filing date

1992-12-24

Publication date

1994-02-16

1992-05-07 Priority claimed from JP4114809A external-priority patent/JPH05234662A/ja

1992-12-24 Application filed by NGK Spark Plug Co Ltd filed Critical NGK Spark Plug Co Ltd

1993-06-30 Publication of EP0549368A2 publication Critical patent/EP0549368A2/en

1994-02-16 Publication of EP0549368A3 publication Critical patent/EP0549368A3/xx

1998-05-27 Application granted granted Critical

1998-05-27 Publication of EP0549368B1 publication Critical patent/EP0549368B1/en

2012-12-24 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
- H01T13/39—Selection of materials for electrodes
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T21/00—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs
- H01T21/02—Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs of sparking plugs

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Spark Plugs (AREA)

EP19920311818 1991-12-27 1992-12-24 An electrode for a spark plug and a method of manufacturing the same Expired - Lifetime EP0549368B1 (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
JP34690191		1991-12-27
JP346901/91		1991-12-27
JP114809/92		1992-05-07
JP4114809A JPH05234662A (ja)	1991-12-27	1992-05-07	スパークプラグ用電極およびその製造方法

Publications (3)

Publication Number	Publication Date
EP0549368A2 EP0549368A2 (en)	1993-06-30
EP0549368A3 true EP0549368A3 (ko)	1994-02-16
EP0549368B1 EP0549368B1 (en)	1998-05-27

Family

ID=26453473

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19920311818 Expired - Lifetime EP0549368B1 (en)	1991-12-27	1992-12-24	An electrode for a spark plug and a method of manufacturing the same

Country Status (2)

Country	Link
EP (1)	EP0549368B1 (ko)
DE (1)	DE69225686T2 (ko)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3425973B2 (ja) *	1992-08-19	2003-07-14	日本特殊陶業株式会社	スパークプラグおよびその製造方法
JP3344737B2 (ja) *	1992-09-10	2002-11-18	日本特殊陶業株式会社	スパークプラグの製造方法
JPH07249471A (ja) *	1994-03-10	1995-09-26	Ngk Spark Plug Co Ltd	スパークプラグ
JP3121309B2 (ja) *	1998-02-16	2000-12-25	株式会社デンソー	内燃機関用のスパークプラグ
DE10015642A1 (de) *	2000-03-29	2001-10-18	Bosch Gmbh Robert	Zündkerze für eine Brennkraftmaschine
DE10027651C2 (de) *	2000-06-03	2002-11-28	Bosch Gmbh Robert	Elektrode, Verfahren zu deren Herstellung und Zündkerze mit einer derartigen Elektrode
DE10134671A1 (de) *	2001-07-20	2003-02-06	Bosch Gmbh Robert	Verfahren zur Anbringung einer Edelmetallspitze auf einer Elektrode, Elektrode und Zündkerze
DE10149630C1 (de)	2001-10-09	2003-10-09	Beru Ag	Zündkerze und Verfahren zu ihrer Herstellung
DE10255187A1 (de) *	2002-11-27	2004-06-24	Robert Bosch Gmbh	Verfahren zum Verbinden einer Elektrode mit einem Edelmetallabschnitt
EP2036174B1 (en)	2006-06-19	2013-12-18	Federal-Mogul Corporation	Small diameter/long reach spark plug with rimmed hemispherical sparking tip
US7851984B2 (en)	2006-08-08	2010-12-14	Federal-Mogul World Wide, Inc.	Ignition device having a reflowed firing tip and method of construction
DE102011083452A1 (de)	2011-09-26	2013-03-28	Robert Bosch Gmbh	Zündkerze mit seitenangestellter Masseelektrode
DE102013105698B4 (de)	2012-06-01	2019-05-02	Federal-Mogul Ignition Company	Zündkerze
US9318879B2 (en)	2012-10-19	2016-04-19	Federal-Mogul Ignition Company	Spark plug having firing pad
JP6731450B2 (ja)	2018-07-11	2020-07-29	日本特殊陶業株式会社	スパークプラグ
US12027828B2 (en)	2020-06-18	2024-07-02	Innio Jenbacher Gmbh & Co Og	Method for manufacturing an assembly for a spark plug and spark plug

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3433683A1 (de) *	1983-09-13	1985-06-20	Ngk Spark Plug Co., Ltd., Nagoya, Aichi	Verfahren zur herstellung einer mittelelektrode fuer eine zuendkerze
US4699600A (en) *	1981-04-30	1987-10-13	Nippondenso Co., Ltd.	Spark plug and method of manufacturing the same
WO1989001717A1 (en) *	1987-08-18	1989-02-23	Robert Bosch Gmbh	Process for manufacturing a spark plug for internal combustion engines

1992
- 1992-12-24 DE DE1992625686 patent/DE69225686T2/de not_active Expired - Lifetime
- 1992-12-24 EP EP19920311818 patent/EP0549368B1/en not_active Expired - Lifetime

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4699600A (en) *	1981-04-30	1987-10-13	Nippondenso Co., Ltd.	Spark plug and method of manufacturing the same
DE3433683A1 (de) *	1983-09-13	1985-06-20	Ngk Spark Plug Co., Ltd., Nagoya, Aichi	Verfahren zur herstellung einer mittelelektrode fuer eine zuendkerze
WO1989001717A1 (en) *	1987-08-18	1989-02-23	Robert Bosch Gmbh	Process for manufacturing a spark plug for internal combustion engines

Also Published As

Publication number	Publication date
DE69225686T2 (de)	1998-09-17
EP0549368B1 (en)	1998-05-27
DE69225686D1 (de)	1998-07-02
EP0549368A2 (en)	1993-06-30

Publication	Publication Date	Title
TW198709B (ko)	1993-01-21
EP0524316A4 (ko)	1995-06-28
DE4292255T1 (ko)	1993-07-15
EP0520381A3 (ko)	1995-05-10
DK0502456T3 (ko)	1997-06-09
DK0539725T3 (ko)	1997-03-17
DE4290030T1 (ko)	1993-01-28
DE4291066T1 (ko)	1993-04-01
FR2671549B1 (ko)	1994-04-22
DE4291721T1 (ko)	1993-05-13
DE4290570T1 (ko)	1993-04-01
TW243468B (ko)	1995-03-21
TW198706B (ko)	1993-01-21
ECSDI910048S (ko)	1992-06-03
ECSM91544U (ko)	1992-08-26
ECSM91562U (ko)	1992-03-27
AU8773791A (ko)	1993-01-21
EP0528491A3 (ko)	1994-02-16
EP0523365A3 (ko)	1994-02-02
EP0520505A3 (ko)	1995-02-15
EP0514865A3 (ko)	1994-02-16
EP0507333A3 (ko)	1994-02-16
EP0499710A3 (ko)	1994-03-23
CN3009795S (ko)	1991-06-05
CN3009742S (ko)	1991-06-05

Legal Events

Date	Code	Title	Description
1993-05-14	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1993-06-30	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE FR GB IT
1993-12-23	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1994-02-16	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE FR GB IT
1994-06-22	17P	Request for examination filed	Effective date: 19940425
1996-02-07	17Q	First examination report despatched	Effective date: 19951221
1997-09-18	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1997-11-28	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1997-11-28	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1998-03-11	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1998-04-09	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1998-05-27	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE FR GB IT
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1998-07-27	ITF	It: translation for a ep patent filed
1998-08-14	ET	Fr: translation filed
1999-04-09	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1999-04-09	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1999-05-26	26N	No opposition filed
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