FR866506A - Improvements made to the manufacture of electrodes and spark plugs - Google Patents

Improvements made to the manufacture of electrodes and spark plugs

Info

Publication number
FR866506A
FR866506A FR866506DA FR866506A FR 866506 A FR866506 A FR 866506A FR 866506D A FR866506D A FR 866506DA FR 866506 A FR866506 A FR 866506A
Authority
FR
France
Prior art keywords
electrodes
manufacture
improvements made
spark plugs
spark
Prior art date
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Knud Groot-Hansen
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
Application filed filed Critical
Application granted granted Critical
Publication of FR866506A publication Critical patent/FR866506A/en
Expired 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
FR866506D 1940-04-16 1940-04-16 Improvements made to the manufacture of electrodes and spark plugs Expired FR866506A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR866506T 1940-04-16

Publications (1)

Publication Number Publication Date
FR866506A true FR866506A (en) 1941-08-18

Family

ID=9344990

Family Applications (1)

Application Number Title Priority Date Filing Date
FR866506D Expired FR866506A (en) 1940-04-16 1940-04-16 Improvements made to the manufacture of electrodes and spark plugs

Country Status (1)

Country Link
FR (1) FR866506A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0418055A1 (en) * 1989-09-14 1991-03-20 Ngk Spark Plug Co., Ltd Spark plug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0418055A1 (en) * 1989-09-14 1991-03-20 Ngk Spark Plug Co., Ltd Spark plug

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