FR39440E - Improvements to circuit breakers - Google Patents

Improvements to circuit breakers

Info

Publication number
FR39440E
FR39440E FR39440DA FR39440E FR 39440 E FR39440 E FR 39440E FR 39440D A FR39440D A FR 39440DA FR 39440 E FR39440 E FR 39440E
Authority
FR
France
Prior art keywords
circuit breakers
breakers
circuit
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.)
CBS Corp
Original Assignee
Westinghouse Electric and Manufacturing Co
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
Priority claimed from US411271A external-priority patent/US1899643A/en
Priority claimed from US411269A external-priority patent/US1991909A/en
Priority claimed from US413012A external-priority patent/US1899605A/en
Priority claimed from US441520A external-priority patent/US1899612A/en
Application filed by Westinghouse Electric and Manufacturing Co filed Critical Westinghouse Electric and Manufacturing Co
Application granted granted Critical
Publication of FR39440E publication Critical patent/FR39440E/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
    • H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
    • H01H33/75—Liquid-break switches, e.g. oil-break
    • 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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H33/10—Metal parts
    • 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
    • H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
FR39440D 1929-12-03 1930-11-29 Improvements to circuit breakers Expired FR39440E (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US411271A US1899643A (en) 1929-12-03 1929-12-03 Oil circuit breaker
US411269A US1991909A (en) 1929-12-03 1929-12-03 Oil circuit breaker
US413012A US1899605A (en) 1929-12-10 1929-12-10 Circuit interrupter
US441520A US1899612A (en) 1930-04-04 1930-04-04 Circuit interrupter

Publications (1)

Publication Number Publication Date
FR39440E true FR39440E (en) 1931-10-19

Family

ID=27503593

Family Applications (1)

Application Number Title Priority Date Filing Date
FR39440D Expired FR39440E (en) 1929-12-03 1930-11-29 Improvements to circuit breakers

Country Status (1)

Country Link
FR (1) FR39440E (en)

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