FR702572A - Improvements to electrical switches or switches - Google Patents

Improvements to electrical switches or switches

Info

Publication number
FR702572A
FR702572A FR702572DA FR702572A FR 702572 A FR702572 A FR 702572A FR 702572D A FR702572D A FR 702572DA FR 702572 A FR702572 A FR 702572A
Authority
FR
France
Prior art keywords
switches
electrical
electrical switches
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)
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.)
Whitehead S Electrical Inv S L
Original Assignee
Whitehead S Electrical Inv S L
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 Whitehead S Electrical Inv S L filed Critical Whitehead S Electrical Inv S L
Application granted granted Critical
Publication of FR702572A publication Critical patent/FR702572A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/92—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being liquid, e.g. oil

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
FR702572D 1930-03-10 1930-09-08 Improvements to electrical switches or switches Expired FR702572A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB702572X 1930-03-10

Publications (1)

Publication Number Publication Date
FR702572A true FR702572A (en) 1931-04-11

Family

ID=10493830

Family Applications (1)

Application Number Title Priority Date Filing Date
FR702572D Expired FR702572A (en) 1930-03-10 1930-09-08 Improvements to electrical switches or switches

Country Status (1)

Country Link
FR (1) FR702572A (en)

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