FR21459E - Improvements to protective devices - Google Patents

Improvements to protective devices

Info

Publication number
FR21459E
FR21459E FR21459A FR21459DA FR21459E FR 21459 E FR21459 E FR 21459E FR 21459 A FR21459 A FR 21459A FR 21459D A FR21459D A FR 21459DA FR 21459 E FR21459 E FR 21459E
Authority
FR
France
Prior art keywords
protective devices
protective
devices
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
FR21459A
Other languages
French (fr)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR21459E publication Critical patent/FR21459E/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
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
    • H01T4/12—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel hermetically sealed
FR21459A 1919-06-17 1919-06-17 Improvements to protective devices Expired FR21459E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR21459T 1919-06-17

Publications (1)

Publication Number Publication Date
FR21459E true FR21459E (en) 1920-10-12

Family

ID=8660480

Family Applications (1)

Application Number Title Priority Date Filing Date
FR21459A Expired FR21459E (en) 1919-06-17 1919-06-17 Improvements to protective devices

Country Status (1)

Country Link
FR (1) FR21459E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2457025A1 (en) * 1979-05-17 1980-12-12 Alsthom Cgee Gas filled spark gap for lightning conductor - has series disc resistances and surrounding coil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2457025A1 (en) * 1979-05-17 1980-12-12 Alsthom Cgee Gas filled spark gap for lightning conductor - has series disc resistances and surrounding coil

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