FR668998A - Improvements to circuit breakers and electrical switches - Google Patents

Improvements to circuit breakers and electrical switches

Info

Publication number
FR668998A
FR668998A FR668998DA FR668998A FR 668998 A FR668998 A FR 668998A FR 668998D A FR668998D A FR 668998DA FR 668998 A FR668998 A FR 668998A
Authority
FR
France
Prior art keywords
circuit breakers
electrical switches
switches
electrical
breakers
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
Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR668998A publication Critical patent/FR668998A/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
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/42—Knife-and-clip contacts
FR668998D 1928-01-05 1929-01-04 Improvements to circuit breakers and electrical switches Expired FR668998A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US244596A US1752127A (en) 1928-01-05 1928-01-05 Electric switch

Publications (1)

Publication Number Publication Date
FR668998A true FR668998A (en) 1929-11-08

Family

ID=22923388

Family Applications (1)

Application Number Title Priority Date Filing Date
FR668998D Expired FR668998A (en) 1928-01-05 1929-01-04 Improvements to circuit breakers and electrical switches

Country Status (2)

Country Link
US (1) US1752127A (en)
FR (1) FR668998A (en)

Also Published As

Publication number Publication date
US1752127A (en) 1930-03-25

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