FR33276E - Improvements made to electrical circuit breakers - Google Patents

Improvements made to electrical circuit breakers

Info

Publication number
FR33276E
FR33276E FR33276DA FR33276E FR 33276 E FR33276 E FR 33276E FR 33276D A FR33276D A FR 33276DA FR 33276 E FR33276 E FR 33276E
Authority
FR
France
Prior art keywords
electrical circuit
circuit breakers
improvements made
breakers
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)
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
Priority claimed from US511000A external-priority patent/US1560440A/en
Priority claimed from US754397A external-priority patent/US1669106A/en
Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR33276E publication Critical patent/FR33276E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/36—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electromagnetic release and no other automatic release
    • H01H73/38—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electromagnetic release and no other automatic release reset by lever
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/26—Electromagnetic mechanisms with windings acting in opposition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/0253—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch two co-operating contacts actuated independently
FR33276D 1921-10-28 1927-03-22 Improvements made to electrical circuit breakers Expired FR33276E (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US511000A US1560440A (en) 1921-10-28 1921-10-28 Electric switch
US754397A US1669106A (en) 1924-12-06 1924-12-06 Electric switch
US9803826A 1926-03-27 1926-03-27

Publications (1)

Publication Number Publication Date
FR33276E true FR33276E (en) 1928-08-20

Family

ID=27378490

Family Applications (1)

Application Number Title Priority Date Filing Date
FR33276D Expired FR33276E (en) 1921-10-28 1927-03-22 Improvements made to electrical circuit breakers

Country Status (2)

Country Link
BE (1) BE340863A (en)
FR (1) FR33276E (en)

Also Published As

Publication number Publication date
BE340863A (en)

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