FR561296A - Improvements to electrical switches - Google Patents

Improvements to electrical switches

Info

Publication number
FR561296A
FR561296A FR561296DA FR561296A FR 561296 A FR561296 A FR 561296A FR 561296D A FR561296D A FR 561296DA FR 561296 A FR561296 A FR 561296A
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
Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR561296A publication Critical patent/FR561296A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Breakers (AREA)
FR561296D 1922-01-24 1923-01-22 Improvements to electrical switches Expired FR561296A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US531469A US1589924A (en) 1922-01-24 1922-01-24 Electric switch

Publications (1)

Publication Number Publication Date
FR561296A true FR561296A (en) 1923-10-19

Family

ID=24117775

Family Applications (1)

Application Number Title Priority Date Filing Date
FR561296D Expired FR561296A (en) 1922-01-24 1923-01-22 Improvements to electrical switches

Country Status (2)

Country Link
US (1) US1589924A (en)
FR (1) FR561296A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4161638A (en) * 1978-05-12 1979-07-17 General Electric Company Vacuum interrupter latch release mechanism

Also Published As

Publication number Publication date
US1589924A (en) 1926-06-22

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