GB744412A - Improvements in or relating to surface discharge members of ignition devices - Google Patents

Improvements in or relating to surface discharge members of ignition devices

Info

Publication number
GB744412A
GB744412A GB166353A GB166353A GB744412A GB 744412 A GB744412 A GB 744412A GB 166353 A GB166353 A GB 166353A GB 166353 A GB166353 A GB 166353A GB 744412 A GB744412 A GB 744412A
Authority
GB
United Kingdom
Prior art keywords
per cent
relating
surface discharge
ignition devices
discharge members
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
GB166353A
Inventor
George William Shoobert
Norman Bertram Ledger
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.)
K L G SPARKING PLUGS Ltd
Original Assignee
K L G SPARKING PLUGS 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
Application filed by K L G SPARKING PLUGS Ltd filed Critical K L G SPARKING PLUGS Ltd
Priority to GB166353A priority Critical patent/GB744412A/en
Publication of GB744412A publication Critical patent/GB744412A/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
    • H01T13/52—Sparking plugs characterised by a discharge along a surface

Landscapes

  • Spark Plugs (AREA)

Abstract

A semi-conducting coating is formed by fusing together 30 per cent silica, 16 per cent alumina, 22 per cent iron oxide, 13 per cent calcium oxide, 6 per cent magnesium oxide, and 13 per cent sulphate (SO3), all the percentages being by weight; after cooling the mass is powdered and applied to the operating surface of the alumina insulator of a sparking plug (see also Group XXVII). The insulator is subsequently heated to fuse and hence bond the powder thereto.
GB166353A 1953-01-20 1953-01-20 Improvements in or relating to surface discharge members of ignition devices Expired GB744412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB166353A GB744412A (en) 1953-01-20 1953-01-20 Improvements in or relating to surface discharge members of ignition devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB166353A GB744412A (en) 1953-01-20 1953-01-20 Improvements in or relating to surface discharge members of ignition devices

Publications (1)

Publication Number Publication Date
GB744412A true GB744412A (en) 1956-02-08

Family

ID=9725879

Family Applications (1)

Application Number Title Priority Date Filing Date
GB166353A Expired GB744412A (en) 1953-01-20 1953-01-20 Improvements in or relating to surface discharge members of ignition devices

Country Status (1)

Country Link
GB (1) GB744412A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1188370B (en) * 1957-04-29 1965-03-04 Renault Low voltage sliding spark plug for internal combustion engines
DE1206210B (en) * 1957-04-29 1965-12-02 Renault Low voltage sliding spark plug for internal combustion engines
DE1212354B (en) * 1964-07-02 1966-03-10 Bosch Gmbh Robert Burning window of electrical semiconductors for use as an electrode separator for low-voltage sliding spark plugs
DE1273906B (en) * 1964-07-02 1968-07-25 Bosch Gmbh Robert Electrical semiconductor for use as an electrode separator for low-voltage sliding spark plugs
US4076946A (en) * 1974-01-02 1978-02-28 Hercofina Hydrogenation of molten aldehydic dimethyl terephthalate
WO1995008207A1 (en) * 1993-09-15 1995-03-23 Robert Bosch Gmbh Sparking plug with surface discharge section
WO1998027629A1 (en) * 1996-12-18 1998-06-25 Robert Bosch Gmbh Spark plug
FR2771558A1 (en) * 1997-11-25 1999-05-28 Renault Surface effect sparking plug

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1188370B (en) * 1957-04-29 1965-03-04 Renault Low voltage sliding spark plug for internal combustion engines
DE1206210B (en) * 1957-04-29 1965-12-02 Renault Low voltage sliding spark plug for internal combustion engines
DE1212354B (en) * 1964-07-02 1966-03-10 Bosch Gmbh Robert Burning window of electrical semiconductors for use as an electrode separator for low-voltage sliding spark plugs
DE1273906B (en) * 1964-07-02 1968-07-25 Bosch Gmbh Robert Electrical semiconductor for use as an electrode separator for low-voltage sliding spark plugs
US4076946A (en) * 1974-01-02 1978-02-28 Hercofina Hydrogenation of molten aldehydic dimethyl terephthalate
WO1995008207A1 (en) * 1993-09-15 1995-03-23 Robert Bosch Gmbh Sparking plug with surface discharge section
US5731654A (en) * 1993-09-15 1998-03-24 Robert Bosch Gmbh Spark plug having a creepage spark gap
WO1998027629A1 (en) * 1996-12-18 1998-06-25 Robert Bosch Gmbh Spark plug
FR2771558A1 (en) * 1997-11-25 1999-05-28 Renault Surface effect sparking plug
WO1999027625A1 (en) * 1997-11-25 1999-06-03 Renault Spark plug with surface effect

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