EP0549368A3 - - Google Patents

Download PDF

Info

Publication number
EP0549368A3
EP0549368A3 EP19920311818 EP92311818A EP0549368A3 EP 0549368 A3 EP0549368 A3 EP 0549368A3 EP 19920311818 EP19920311818 EP 19920311818 EP 92311818 A EP92311818 A EP 92311818A EP 0549368 A3 EP0549368 A3 EP 0549368A3
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.)
Filing date
Publication date
Priority claimed from JP4114809A external-priority patent/JPH05234662A/ja
Application filed by NGK Spark Plug Co Ltd filed Critical NGK Spark Plug Co Ltd
Publication of EP0549368A2 publication Critical patent/EP0549368A2/en
Publication of EP0549368A3 publication Critical patent/EP0549368A3/xx
Application granted granted Critical
Publication of EP0549368B1 publication Critical patent/EP0549368B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
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
JP114809/92 1992-05-07

Publications (3)

Publication Number Publication Date
EP0549368A2 EP0549368A2 (en) 1993-06-30
EP0549368A3 true EP0549368A3 (ro) 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 (ro)
DE (1) DE69225686T2 (ro)

Families Citing this family (15)

* 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
WO2007149845A2 (en) 2006-06-19 2007-12-27 Federal-Mogul Corporation Small diameter/long reach spark plug
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
US9130356B2 (en) 2012-06-01 2015-09-08 Federal-Mogul Ignition Company Spark plug having a thin noble metal firing pad
US9318879B2 (en) 2012-10-19 2016-04-19 Federal-Mogul Ignition Company Spark plug having firing pad
EP4169135A1 (en) * 2020-06-18 2023-04-26 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

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

Similar Documents

Publication Publication Date Title
EP0531653A3 (ro)
EP0539116A3 (ro)
EP0527469A3 (ro)
EP0534777A3 (ro)
FR2676353B1 (ro)
FR2671549B1 (ro)
FR2674176B1 (ro)
FR2684922B1 (ro)
FR2674288B1 (ro)
FR2675000B1 (ro)
FR2677254B1 (ro)
FR2677119B1 (ro)
DE4290570T1 (ro)
FR2675750B1 (ro)
FR2674583B1 (ro)
TW207030B (ro)
FR2677334B1 (ro)
FR2682668B1 (ro)
FR2671715B1 (ro)
FR2684137B1 (ro)
FR2672342B1 (ro)
ECSM91562U (ro)
EP0550128A3 (ro)
EP0535630A3 (ro)
EP0534678A3 (ro)

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19940425

17Q First examination report despatched

Effective date: 19951221

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REF Corresponds to:

Ref document number: 69225686

Country of ref document: DE

Date of ref document: 19980702

ITF It: translation for a ep patent filed

Owner name: PROPRIA S.R.L.

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20011227

Year of fee payment: 10

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021224

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20021224

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20061231

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071224

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20111219

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20111221

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69225686

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69225686

Country of ref document: DE