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FR33937E - Improvements to electrical switches - Google Patents

Improvements to electrical switches

Info

Publication number
FR33937E
FR33937E FR33937DA FR33937E FR 33937 E FR33937 E FR 33937E FR 33937D A FR33937D A FR 33937DA FR 33937 E FR33937 E FR 33937E
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)
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 US531469A external-priority patent/US1589924A/en
Priority claimed from US125570A external-priority patent/US1745187A/en
Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR33937E publication Critical patent/FR33937E/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H71/1054—Means for avoiding unauthorised release
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/36—Driving mechanisms
    • H01H21/50—Driving mechanisms with indexing or latching means, e.g. indexing by ball and spring; with means to ensure stopping at intermediate operative positions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
FR33937D 1922-01-24 1927-07-27 Improvements to electrical switches Expired FR33937E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US531469A US1589924A (en) 1922-01-24 1922-01-24 Electric switch
US125570A US1745187A (en) 1926-07-28 1926-07-28 Circuit interrupter

Publications (1)

Publication Number Publication Date
FR33937E true FR33937E (en) 1929-03-27

Family

ID=26823699

Family Applications (1)

Application Number Title Priority Date Filing Date
FR33937D Expired FR33937E (en) 1922-01-24 1927-07-27 Improvements to electrical switches

Country Status (1)

Country Link
FR (1) FR33937E (en)

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