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FR840827A - Improvements to electrical switches - Google Patents

Improvements to electrical switches

Info

Publication number
FR840827A
FR840827A FR840827DA FR840827A FR 840827 A FR840827 A FR 840827A FR 840827D A FR840827D A FR 840827DA FR 840827 A FR840827 A FR 840827A
Authority
FR
France
Prior art keywords
electrical switches
switches
electrical
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
Cyril Dorking Whitehead
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 FR840827A publication Critical patent/FR840827A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • 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)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Circuit Breakers (AREA)
FR840827D 1937-08-12 1938-07-19 Improvements to electrical switches Expired FR840827A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB213333X 1937-08-12
GB201037X 1937-10-20

Publications (1)

Publication Number Publication Date
FR840827A true FR840827A (en) 1939-05-04

Family

ID=26254448

Family Applications (1)

Application Number Title Priority Date Filing Date
FR840827D Expired FR840827A (en) 1937-08-12 1938-07-19 Improvements to electrical switches

Country Status (4)

Country Link
BE (1) BE429490A (en)
CH (1) CH213333A (en)
FR (1) FR840827A (en)
GB (1) GB500731A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2426387A (en) * 1944-04-04 1947-08-26 Ite Circuit Breaker Ltd Circuit breaker contact
US2445442A (en) * 1944-08-31 1948-07-20 Westinghouse Electric Corp Circuit interrupter
US2619568A (en) * 1947-04-04 1952-11-25 Westinghouse Electric Corp Circuit interrupter
US2606262A (en) * 1949-07-27 1952-08-05 Gen Electric Electric circuit interrupter
DE869095C (en) * 1949-08-17 1953-03-02 Voigt & Haeffner Ag Circuit breaker with a damping device built into the switch rod to regulate the opening speed
US2669628A (en) * 1950-01-05 1954-02-16 Westinghouse Electric Corp Liquid break circuit interrupter
US2669629A (en) * 1950-07-22 1954-02-16 Westinghouse Electric Corp Circuit interrupter
US2737556A (en) * 1951-04-27 1956-03-06 Westinghouse Electric Corp Circuit interrupter
FR1144285A (en) * 1954-12-24 1957-10-11 Westinghouse Electric Corp Circuit switches
DE1026397B (en) * 1955-03-14 1958-03-20 Asea Ab Oil switch with two extinguishing chambers
US2919330A (en) * 1956-01-30 1959-12-29 Oerlikon Engineering Company Low-oil content high-tension oil circuit breaker
US3095490A (en) * 1960-02-26 1963-06-25 Westinghouse Electric Corp Circuit interrupters

Also Published As

Publication number Publication date
GB500731A (en) 1939-02-13
BE429490A (en)
CH213333A (en) 1941-01-31

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